CN113049949A - Relay overhaul testing device and system - Google Patents
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Abstract
本发明公开了一种继电器检修测试装置及测试系统，所述装置包括：F650综合保护继电器和L90差动继电器并联后，与第二继电器串联；分闸按钮与第三继电器串联后，并联于F650综合保护继电器两端；第二继电器的13接点和14接点并联于分闸按钮的两端；第三继电器的51接点和52接点与第二继电器、合闸按钮和第一继电器串联后，并联于F650综合保护继电器和第二继电器的A2接点的两端；第一继电器的13接点和14接点并联于合闸按钮的两端；第一继电器的43接点和44接点与第二继电器和第一指示灯串联后，并联于F650综合保护继电器两端；第一继电器第二指示灯串联后，并联于F650综合保护继电器两端。本发明能够进行相关分合闸及故障跳闸试验。
The invention discloses a relay maintenance and testing device and a testing system. The device comprises: after an F650 comprehensive protection relay and an L90 differential relay are connected in parallel, they are connected in series with the second relay; after the opening button is connected in series with the third relay, they are connected in parallel with the F650 Both ends of the comprehensive protection relay; the 13 and 14 contacts of the second relay are connected in parallel with the two ends of the opening button; the 51 and 52 contacts of the third relay are connected in series with the second relay, the closing button and the first relay, and are connected in parallel with each other. Both ends of the A2 contact of the F650 integrated protection relay and the second relay; the 13 contact and 14 contact of the first relay are connected in parallel with both ends of the closing button; the 43 contact and 44 contact of the first relay are connected with the second relay and the first indication After the lamps are connected in series, they are connected in parallel at both ends of the F650 comprehensive protection relay; after the first relay and the second indicator light are connected in series, they are connected in parallel at both ends of the F650 comprehensive protection relay. The present invention can perform relevant opening and closing and fault tripping tests.
Description
Technical Field
The invention belongs to the technical field of equipment detection, and particularly relates to a relay overhaul testing device and a relay overhaul testing system.
Background
As is known, a relay is an electronic device actuator having a control system (also called an input loop) and a controlled system (also called an output loop), and is usually applied to an automatic control circuit, and it is actually an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays the roles of automatic regulation, safety protection, circuit conversion and the like. The performance of the relay directly influences the running safety of the railway train, so the performance detection of the relay is particularly important. At present, various types of alternating current comprehensive protection relays can perform switching-on and switching-off and fault tripping tests on an equipment body, and still use the traditional manual mode to perform relay testing and evaluate the running state of the relay, wherein a plurality of defects exist.
Disclosure of Invention
The invention aims to provide a relay maintenance testing device and a relay maintenance testing system, which are used for performing related opening and closing and fault tripping tests, and achieving the purposes of shortening fault maintenance time and reducing maintenance cost.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
a relay service test device comprising: the device comprises an F650 comprehensive protection relay, an L90 differential relay, a first relay K1, a second relay K2, a third relay K3, a brake separating button, a brake closing button, a first indicator lamp D1 and a second indicator lamp D2;
the F650 comprehensive protection relay is connected with the L90 differential relay in parallel and then is connected with the A1 contact and the A2 contact of the second relay K2 in series;
the opening button is connected with the A1 contact and the A2 contact of the third relay K3 in series and then connected with two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2 in parallel;
the 13 contact and the 14 contact of the second relay K2 are connected in parallel at two ends of the opening button;
the 51 contact and the 52 contact of the third relay K3 are connected in series with the 51 contact and the 52 contact of the second relay K2, the A1 contact and the A2 contact of a closing button and a first relay K1, and then are connected in parallel with two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2;
the 13 contact and the 14 contact of the first relay K1 are connected in parallel at two ends of the closing button;
after the 43 contact and the 44 contact of the first relay K1 are connected with the 71 contact and the 72 contact of the second relay K2 and the first indicator light D1 in series, the two contacts are connected with the two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2 in parallel;
after the 71 contact and the 72 contact of the first relay K1 and the second indicator light D2 are connected in series, the two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2 are connected in parallel.
Preferably, the method further comprises the following steps: a first test interface and a second test interface; the B2 output terminal, the B4 output terminal, the B6 output terminal and the B9 output terminal of the F650 comprehensive protection relay are respectively connected with an A1 pin, a B1 pin, a C1 pin and an E1 pin of the first test interface correspondingly;
the F1B output terminal, the F2B output terminal and the F3B output terminal of the L90 differential relay are respectively connected with an A2 pin, a B2 pin and a C2 pin of the second test interface correspondingly;
the F1C output terminal, the F2C output terminal and the F3C output terminal of the L90 differential relay are respectively connected with an A1 pin, a B1 pin and a C1 pin of the second test interface correspondingly;
the H10 terminal and the H18 terminal of the F650 comprehensive protection relay are respectively connected with a power supply F1;
the B5B terminal and the B6a terminal of the L90 differential relay are connected to the power supply F1, respectively.
Preferably, in the case of performing the opening and closing test, after the power supply F1 is turned on, the normally closed contact of the 71 contact and the 72 contact of the first relay K1 is turned on, the second indicator lamp D2 is turned on, and the opening indicating circuit is turned on to simulate the opening state.
When the closing button is pressed, the contact 51 and the contact 52 of the third relay K3, the contact 51 and the contact 52 of the second relay K2 and the contact 24 of the closing button are electrified, so that the contact A1 of the first relay K1 and the contact A2 of the first relay K1 are electrified to operate, and the normally open contact between the contact 13 and the contact 14 of the first relay K1 is switched on, so that the first relay K1 is self-locked.
The normally open contact between the 43 contact and the 44 contact of the first relay K1 is closed, the normally closed contact is between the 71 contact and the 72 contact of the second relay K2, the first indicator lamp is turned on, the opening indicating loop is cut off, and the closing indicating loop is switched on to simulate a closing state.
When the opening button is pressed, the contact 23 and the contact 24 of the opening button are electrified, the contact A1 and the contact A2 of the third relay K3 are electrified, so that the normally closed contact between the contact 51 and the contact 52 of the third relay K3 is opened, the normally open contact between the contact 13 and the contact 14 of the second relay K2 is closed, and the self-locking of the first relay K1 is released.
The normally closed contact between the 71 contact and the 72 contact of the second relay K2 is opened, the closing indicating circuit is cut off, the normally closed contact between the 71 contact and the 72 contact of the first relay K1 is closed again, the second indicating lamp is lightened, and the opening indicating circuit is closed again to simulate the opening state.
Preferably, when a fault tripping test is performed, the power supply F1 is turned on, the F650 comprehensive protection relay and the L90 line differential protection relay are turned on, the closing button is pressed, and the closing indication circuit is connected to simulate the operation state of the actual field device.
The first test interface is used for being connected with a current output terminal of the relay protection box for testing and setting the output current of the relay protection box, when the output current reaches or exceeds the over-current trip setting value or the zero-sequence trip setting value of the F650 comprehensive protection relay, the contact 31 and the contact 33 of the F650 comprehensive protection relay or the contact 34 and the contact 46 of the F650 comprehensive protection relay output a first fault simulation signal, the A1 contact and the A2 contact of the second relay K2 are electrified, the normally closed contact between the 51 contact and the 52 contact of the second relay K2 is opened, the self-locking of the first relay K1 is released, the closing indicating loop is cut off, the normally closed contact between the contact 71 and the contact 72 of the first relay K1 is switched on, so that the second indicator lamp is lightened, and the opening indicating loop is switched on to simulate the opening state.
Preferably, when a fault tripping test is performed, the power supply F1 is turned on, the F650 comprehensive protection relay and the L90 differential relay are turned on, the closing button is pressed, and the closing indication loop is connected to simulate the operation state of the actual field equipment.
The second test interface is used for being connected with a current output terminal of the relay protection box for testing, an output current is arranged on the relay protection box for testing, when the output current reaches or exceeds a differential trip setting value of the L90 differential relay, and when a second fault analog signal is output between an H1c contact and an H1b contact of the L90 differential relay, an A1 contact and an A2 contact of the second relay K2 are electrified to act, so that a normally closed contact between a 51 contact and a 52 contact of the second relay K2 is disconnected, self-locking of the first relay K1 is released, a closing indication loop is cut off, a normally closed contact between a 71 contact and a 72 contact of the first relay K1 is connected, the second indication lamp is lightened, and the opening indication loop is connected to simulate an opening state.
Preferably, the method further comprises the following steps: the first time test interface is connected with the L90 differential relay through the first relay K1; the second time test interface is connected with the F650 comprehensive protection relay through the second relay K2.
The 1 terminal of the first time test interface is connected with the 13 contact of the first relay K1; the 2 terminal of the first time test interface is connected to the 14 contact of the first relay K1.
The 1 terminal of the second time test interface is connected with the 13 contact of the second relay K2; the 2 terminal of the second time test interface is connected to the 14 contact of the second relay K2.
When the setting value of the F650 comprehensive protection relay is verified, the time test terminal of the relay protection box for testing is connected with the 1 and 2 terminals of the second time test interface of the F650 comprehensive protection relay, and when the A1 contact and the A2 contact of the second relay K2 receive a protection action signal sent by the F650 comprehensive protection relay, the normally open contact between the 13 contact and the 14 contact of the second relay K2 is switched on, so that the simulated fault action time is recorded on the relay protection box for testing.
Preferably, when the setting value of the L90 differential relay is verified, the differential relay is connected to a current output terminal of a test relay box, an output current is set on the test relay box, when the output current reaches or exceeds the differential trip setting value of the L90 differential relay, and a second fault simulation signal is output from the H1c contact and the H1b contact of the L90 differential relay, the a1 contact and the a2 contact of the second relay K2 are electrically operated, so that the normally closed contact between the 51 contact and the 52 contact of the second relay K2 is disconnected, the self-locking of the first relay K1 is released, a closing indication loop is disconnected, the normally closed contact between the 71 contact and the 72 contact of the first relay K1 is connected, the second indication lamp D2 is turned on, and the opening indication loop is connected, so as to simulate an opening state; and simultaneously connecting the relay protection box time testing terminal for testing with the 1 and 2 terminals of the first time testing interface of the L90 differential relay, wherein when the A1 contact and the A2 contact of the first relay K1 receive the second fault simulation signal sent by the L90 differential relay, a normally open contact between the 13 contact and the 14 contact of the first relay K2 is switched on, so that the simulated fault action time is recorded on the relay protection box for testing.
In another aspect, the present invention further provides a relay maintenance testing system, including: two relay service test devices as described above;
the L90 differential relay in each relay maintenance test device further comprises an Rx1 port and a Tx1 port, wherein Rx1 ports of the two L90 differential relays are connected through a first differential optical fiber, and Tx1 ports of the two L90 differential relays are connected through a second differential optical fiber.
The differential fault signal generated by one L90 differential relay in the two L90 differential relays is transmitted to the other L90 differential relay through the first differential optical fiber and the second differential optical fiber, so that the H1c contact and the H1b contact in the other L90 differential relay output fault analog signals, the A1 contact and the A2 contact of the second relay K2 are electrically operated, the normally closed contact between the 51 contact and the 52 contact of the second relay K2 is disconnected, the self-locking of the first relay K1 is released, a circuit for indicating the closing and the opening is realized, the 71 contact and the 72 contact of most first relays K1 are connected, the second indicator light point D2 is lightened, and the opening and closing state is simulated.
The invention has at least one of the following advantages:
at present, each type of alternating current integrated protection relay can only carry out switching-on and switching-off tests and fault tripping tests on an equipment body. The volume is small, the weight is light, the height is moderate, and the device is movable;
taking an L90 differential relay as an example, 7 ten thousand 5 thousand yuan RMB is needed, and 1 ten thousand 5 thousand yuan RMB is expected to be needed for the market price of a new electric appliance cabinet; the relay overhaul testing device provided by the invention uses the waste changing boxes and the waste relays, so that the purchasing cost and the labor cost are saved by about 30 ten thousand yuan, and the cost is greatly reduced.
The debugging of the original new AC comprehensive protection relay needs about half a day, and the opening and closing test and the fault tripping test are still required to be carried out on the equipment body after the AC comprehensive protection relay arrives at the site; after the relay maintenance testing device is used, related opening and closing and fault tripping tests can be firstly carried out on the relay maintenance testing device, so that the fault maintenance time is greatly shortened.
By utilizing the relay maintenance testing device, the modularized fault detection can be carried out on the corresponding alternating current comprehensive protection relay, the purpose of autonomous maintenance is achieved, and the purchase cost is further reduced.
Drawings
Fig. 1 is a schematic diagram of a main circuit structure of a relay overhaul test device according to an embodiment of the present invention;
fig. 2 is a schematic circuit structure diagram of a test interface and a time test interface connection in a relay repair test device according to an embodiment of the present invention;
fig. 3 is a die formed by a relay overhaul test system according to an embodiment of the present invention
An operation interface structure schematic diagram of the simulation comprehensive protection operation cabinet;
Detailed Description
The relay overhaul testing device and the testing system provided by the invention are further described in detail below with reference to the accompanying drawings and the detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are all used in a non-precise scale for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention. To make the objects, features and advantages of the present invention comprehensible, reference is made to the accompanying drawings. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the present invention, so that the present invention has no technical significance, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention.
Referring to fig. 1 and fig. 2, the present embodiment provides a relay repair test apparatus (simulation operation repair test apparatus) including: the relay protection device comprises an F650 comprehensive protection relay, an L90 differential relay, a first relay K1 (closing indicating relay), a second relay K2 (simulation fault exit relay), a third relay K3 (opening indicating relay), an opening button, a closing button, a first indicating lamp (red closing indicating lamp) D1 and a second indicating lamp (green closing indicating lamp) D2.
The F650 comprehensive protection relay is connected with the L90 differential relay in parallel and then is connected with the A1 contact and the A2 contact of the second relay K2 in series. The opening button is connected in series with the A1 contact and the A2 contact of the third relay K3 and then connected in parallel with two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2.
The 13 contact and the 14 contact of the second relay K2 are connected in parallel at two ends of the opening button. The 51 contact and the 52 contact of the third relay K3 are connected in series with the 51 contact and the 52 contact of the second relay K2, the A1 contact and the A2 contact of the closing button and the first relay K1, and then are connected in parallel with two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2.
The 13 contact and the 14 contact of the first relay K1 are connected in parallel at two ends of the closing button. After the 43 contact and the 44 contact of the first relay K1 are connected with the 71 contact and the 72 contact of the second relay K2 and the first indicator light D1 in series, the two contacts are connected with the F650 comprehensive protection relay and the two ends of the A2 contact of the second relay K2 in parallel. After the 71 contact and the 72 contact of the first relay K1 and the second indicator light D2 are connected in series, the two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2 are connected in parallel.
After the contact A1 and the contact A2 of the second relay K2 are connected with the contact 33 and the contact 36 of the F650 comprehensive protection relay and the contact H1b of the L90 differential relay, any pair of the contact 31 and the contact 33 of the F650 comprehensive protection relay, the contact 34 and the contact 46 of the F650 comprehensive protection relay, the contact H1c of the L90 differential relay and the contact H1b are used for outputting fault simulation signals.
As shown in fig. 2, the present embodiment further includes: a first test interface and a second test interface.
And the B2 output terminal, the B4 output terminal, the B6 output terminal and the B9 output terminal of the F650 comprehensive protection relay are respectively connected with the A1 pin, the B1 pin, the C1 pin and the E1 pin of the first test interface correspondingly. And the B1 output terminal, the B3 output terminal, the B5 output terminal and the B10 output terminal of the F650 comprehensive protection relay are connected with each other.
The F1B output terminal, the F2B output terminal and the F3B output terminal of the L90 differential relay are respectively connected with the A2 pin, the B2 pin and the C2 pin of the second test interface correspondingly. The F1C output terminal, the F2C output terminal and the F3C output terminal of the L90 differential relay are respectively connected with the A1 pin, the B1 pin and the C1 pin of the second test interface correspondingly.
And an H10 terminal and an H18 terminal of the F650 comprehensive protection relay are respectively connected with a phase line L and a zero line 00 of an alternating current 220V power supply F1. The B5B terminal and the B6a terminal of the L90 differential relay are connected to the L contact and the 0 contact of the power supply F1, respectively.
When the power supply F1 is switched on during the opening and closing test, the normally closed contact of the 71 contact and the 72 contact of the first relay K1 is switched on, the second indicator lamp D2 is lightened, and the opening indicating loop is switched on to simulate the opening state.
When the closing button is pressed, the contact 51 and the contact 52 of the third relay K3, the contact 51 and the contact 52 of the second relay K2 and the contact 24 of the closing button are electrified, so that the contact A1 and the contact A2 of the first relay K1 are electrified to operate, and the normally open contact between the contact 13 and the contact 14 of the first relay K1 is switched on, so that the first relay K1 is self-locked.
The normally open contact between the 43 contact and the 44 contact of the first relay K1 is closed, the normally closed contact is between the 71 contact and the 72 contact of the second relay K2, the first indicator lamp is turned on, the opening indicating loop is cut off, and the closing indicating loop is switched on to simulate a closing state.
When the opening button is pressed, the contact 23 and the contact 24 of the opening button are electrified, the contact A1 and the contact A2 of the third relay K3 are electrified, so that the normally closed contact between the contact 51 and the contact 52 of the third relay K3 is opened, the normally open contact between the contact 13 and the contact 14 of the second relay K2 is closed, and the self-locking of the first relay K1 is released.
The normally closed contact between the 71 contact and the 72 contact of the second relay K2 is opened, the closing indicating circuit is cut off, the normally closed contact between the 71 contact and the 72 contact of the first relay K1 is closed again, the second indicating lamp is lightened, and the opening indicating circuit is closed again to simulate the opening state. The opening and closing test is used for verifying whether the simulation loop of the test device is normal.
The simulation operation overhaul testing device is provided with an F650 comprehensive protection relay and an L90 differential relay, after a power supply is switched on, the F650 comprehensive protection relay and the L90 differential relay are started, setting values can be browsed on the F650 comprehensive protection relay and the L90 differential relay, and a computer is used for realizing program uploading, downloading and setting value setting through connection of data lines (the F650 comprehensive protection relay and the L90 differential relay only have related functions, but the setting values are required to be set for realizing the related functions). When a fault tripping test is carried out (when a test is needed, the simulation operation overhaul test device is firstly placed in a closing indication state, then the simulation current magnitude is loaded on a test interface of an F650 comprehensive protection relay or an L90 differential relay according to a test requirement, and fault phenomena of overcurrent tripping, zero sequence tripping, overload tripping, differential current tripping and the like of the F650 comprehensive protection relay or the L90 differential relay can be simulated), a power supply F1 of the test device is started, the F650 comprehensive protection relay and the L90 differential relay are started, the closing button is pressed, and a closing indication loop is switched on.
The first test interface is used for being connected with a current output terminal of a relay protection box for testing, the output current of the relay protection box is set, when the output current reaches or exceeds an overcurrent trip setting value or a zero sequence trip setting value of an F650 comprehensive protection relay, a contact 31 and a contact 33 of the F650 comprehensive protection relay or a contact 34 and a contact 46 of the F650 comprehensive protection relay output a first fault simulation signal (because a test platform belongs to simulation equipment, fault signal simulation needs to be carried out on comprehensive protection by using the relay protection box), a contact A1 and a contact A2 of the second relay K2 are electrically operated, a normally closed contact between a contact 51 and a contact 52 of the second relay K2 is disconnected, self-locking of the first relay K1 is released, the closing indication loop is cut off, and a contact 71 and a contact 72 of the first relay K1 are connected, and the second indicator light is lightened, and the brake-separating indicating loop is switched on to simulate a brake-separating state. Since the test apparatus provided in this embodiment has no actual breaker or the like, the opening/closing state is indicated by the indicator lamps (the first indicator lamp D1 and the second indicator lamp D2) temporarily.
After the relay to be tested is connected with the overhaul testing device according to the mode of the figure 1 and the figure 2, when a fault tripping test is carried out, the power supply F1 is started, the F650 comprehensive protection relay and the L90 differential relay are started, the closing button is pressed, and the closing indication loop is switched on.
The second test interface is used for being connected with a current output terminal of the relay protection box for testing, the relay protection box for testing is provided with output current, when the output current reaches or exceeds the differential trip setting of the L90 differential relay, when the H1c contact and the H1b contact of the L90 differential relay output a second fault analog signal, the A1 contact and the A2 contact of the second relay K2 are electrified and operated, thereby, the normally closed contact between the contact 51 and the contact 52 of the second relay K2 is opened, the self-locking of the first relay K1 is released, the closing indicating loop is cut off, the normally closed contact between the contact 71 and the contact 72 of the first relay K1 is closed, the second indicator light is lightened, the opening indicating loop is closed, the testing device provided by the embodiment has no actual breaker and other equipment temporarily so as to simulate the opening and closing state, and the opening and closing state is represented by the indicator lamp temporarily.
This embodiment still includes: a first time test interface and a second time test interface; the first time test interface is connected with the L90 differential relay through the first relay K1; the second time test interface is connected with the F650 comprehensive protection relay through the second relay K2. The 1 terminal of the first time test interface is connected with the 13 contact of the first relay K1; the 2 terminal of the first time test interface is connected to the 14 contact of the first relay K1. The 1 terminal of the second time test interface is connected with the 13 contact of the second relay K2; the 2 terminal of the second time test interface is connected to the 14 contact of the second relay K2. When the setting value of the F650 comprehensive protection relay is verified, the time test terminal of the relay protection box for testing is connected with the 1 and 2 terminals of the second time test interface of the F650 comprehensive protection relay, and when the A1 contact and the A2 contact of the second relay K2 receive a protection action signal sent by the F650 comprehensive protection relay, the normally open contact between the 13 contact and the 14 contact of the second relay K2 is switched on, so that the simulated fault action time is recorded on the relay protection box for testing.
The F650 comprehensive protection relay provided by the embodiment has time test interfaces, and can meet action time verification during setting value verification.
When the setting value of the L90 differential relay is verified, the L90 differential relay is connected with a current output terminal of a relay protection box for testing, an output current is arranged on the relay protection box for testing, when the output current reaches or exceeds the differential trip setting value of the L90 differential relay, and a second fault analog signal is output between an H1c contact and an H1b contact of the L90 differential relay, an A1 contact and an A2 contact of the second relay K2 are electrically operated, so that a normally closed contact between a 51 contact and a 52 contact of the second relay K2 is disconnected, the self-locking of the first relay K1 is released, a closing indication loop is cut off, a normally closed contact between a 71 contact and a 72 contact of the first relay K1 is connected, the second indication lamp D2 is turned on, and a separating indication loop is connected to simulate a separating brake state; and simultaneously connecting the relay protection box time testing terminal for testing with the 1 and 2 terminals of the first time testing interface of the L90 differential relay, wherein when the A1 contact and the A2 contact of the first relay K1 receive the second fault simulation signal sent by the L90 differential relay, a normally open contact between the 13 contact and the 14 contact of the first relay K2 is switched on, so that the simulated fault action time is recorded on the relay protection box for testing.
As shown in fig. 3, this embodiment further provides a relay repair test system, which includes: two relay servicing test devices as described above (a first relay servicing test device and a second relay servicing test device); the L90 differential relay in each relay maintenance test device further comprises an Rx1 port and a Tx1 port, Rx1 ports of the two L90 differential relays are connected through a first differential optical fiber, and Tx1 ports of the two L90 differential relays are connected through a second differential optical fiber;
a differential fault signal generated by one of the two L90 differential relays, namely the L90 differential relay (for example, the first 90 differential relay in the first relay maintenance testing device), is transmitted to the other L90 differential relay (for example, the second 90 differential relay in the second relay maintenance testing device) through the first differential optical fiber and the second differential optical fiber, so that the H1c contact and the H1b contact in the other L90 differential relay (for example, the second 90 differential relay) output a fault analog signal, the a1 contact and the a2 contact of the second relay K2 are electrically operated, so that the normally closed contact between the 51 contact and the 52 contact of the second relay K2 is disconnected, the self-locking of the first relay K1 is released, a disconnection indicating circuit is realized, the 71 contact and the 72 contact of most of the first relay K1 are connected, the second indicator light D2 is illuminated to simulate an open state. Therefore, the simulation operation overhaul test system has the function of the joint tripping of the L90 differential relay.
The multi-functional integrated protection relay emulation operation overhauls testing arrangement that this embodiment provided (hereinafter referred to as emulation operation overhauls testing arrangement) utilizes abandonment locker and the old accessory (F650 current relay that gets off of change, L90 differential relay and condenser cabinet transformation old part) to splice the equipment, build the simulation and protect the operation cabinet comprehensively, behind the differential optical fiber of connecting L90 differential relay is opened simultaneously with No. 2 cabinets to No. 1 cabinet, but actual simulation field device's running state, carry out the real operation training for this department staff and outsourcing maintainer, promote the training effect, thereby let every maintainer dare to do the hands, can do the hands, accomplish standardized operation, standardized maintenance. After different relays are replaced, the simulation operation overhaul testing device can perform data browsing, setting value checking, relay replacement, relay fault judgment and fault relay self-maintenance after-test on the relays according to the surface key operation of the different relays, and can also perform data connection with a computer by utilizing communication interfaces on different relay panels to upload and download relay configuration and other functions, so that the testing efficiency is effectively improved, and the cost is saved.
The present each type of exchange comprehensive protection relay need just can carry out the divide-shut brake experiment and the trouble trip test on the equipment body, and the most function on the relay overhauls testing arrangement height that this embodiment provided and the field device height roughly the same and can realize the equipment body, the operation of being convenient for, the observation of being convenient for. Small volume, light weight, moderate height and mobility.
Taking an L90 differential relay as an example, 7 ten thousand 5 thousand yuan RMB is needed, and 1 ten thousand 5 thousand yuan RMB is expected to be needed for the market price of a new electric appliance cabinet; the relay overhaul testing device provided by the invention uses the waste changing boxes and the waste relays, so that the purchasing cost and the labor cost are saved by about 30 ten thousand yuan, and the cost is greatly reduced.
The debugging of the original new AC comprehensive protection relay needs about half a day, and the opening and closing test and the fault tripping test are still required to be carried out on the equipment body after the AC comprehensive protection relay arrives at the site; after the relay maintenance testing device is used, related opening and closing and fault tripping tests can be firstly carried out on the relay maintenance testing device, so that the fault maintenance time is greatly shortened.
Utilize this embodiment relay to overhaul testing arrangement, can carry out modularization fault detection to corresponding interchange comprehensive protection relay, reach autonomic maintenance purpose, further reduce purchasing cost.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be noted that the apparatuses and methods disclosed in the embodiments herein can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments herein. In this regard, each block in the flowchart or block diagrams may represent a module, a program, or a portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (8)
1. The utility model provides a relay overhauls testing arrangement which characterized in that includes: the device comprises an F650 comprehensive protection relay, an L90 differential relay, a first relay K1, a second relay K2, a third relay K3, a brake separating button, a brake closing button, a first indicator lamp D1 and a second indicator lamp D2;
the F650 comprehensive protection relay is connected with the L90 differential relay in parallel and then is connected with the A1 contact and the A2 contact of the second relay K2 in series;
the opening button is connected with the A1 contact and the A2 contact of the third relay K3 in series and then connected with two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2 in parallel;
the 13 contact and the 14 contact of the second relay K2 are connected in parallel at two ends of the opening button;
the 51 contact and the 52 contact of the third relay K3 are connected in series with the 51 contact and the 52 contact of the second relay K2, the A1 contact and the A2 contact of a closing button and a first relay K1, and then are connected in parallel with two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2;
the 13 contact and the 14 contact of the first relay K1 are connected in parallel at two ends of the closing button;
after the 43 contact and the 44 contact of the first relay K1 are connected with the 71 contact and the 72 contact of the second relay K2 and the first indicator light D1 in series, the two contacts are connected with the two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2 in parallel;
after the 71 contact and the 72 contact of the first relay K1 and the second indicator light D2 are connected in series, the two ends of the A2 contact of the F650 comprehensive protection relay and the second relay K2 are connected in parallel.
2. The relay service test apparatus of claim 1, comprising:
a first test interface and a second test interface;
the B2 output terminal, the B4 output terminal, the B6 output terminal and the B9 output terminal of the F650 comprehensive protection relay are respectively connected with an A1 pin, a B1 pin, a C1 pin and an E1 pin of the first test interface correspondingly;
the F1B output terminal, the F2B output terminal and the F3B output terminal of the L90 differential relay are respectively connected with an A2 pin, a B2 pin and a C2 pin of the second test interface correspondingly;
the F1C output terminal, the F2C output terminal and the F3C output terminal of the L90 differential relay are respectively connected with an A1 pin, a B1 pin and a C1 pin of the second test interface correspondingly;
the H10 terminal and the H18 terminal of the F650 comprehensive protection relay are respectively connected with a power supply F1;
the B5B terminal and the B6a terminal of the L90 differential relay are connected to the power supply F1, respectively.
3. The relay service test device of claim 2,
when the opening and closing tests are carried out,
after the power supply F1 is switched on, the normally closed contact of the 71 contact and the 72 contact of the first relay K1 is switched on, the second indicator lamp D2 is lightened, and a brake-separating indicating loop is switched on to simulate a brake-separating state;
when the closing button is pressed, the contact 51 and the contact 52 of the third relay K3, the contact 51 and the contact 52 of the second relay K2 and the contact 24 of the closing button are electrified, so that the contact A1 of the first relay K1 and the contact A2 of the first relay K1 are electrified to act, and the normally open contact between the contact 13 and the contact 14 of the first relay K1 is switched on, so that the first relay K1 is self-locked;
a normally open contact between a 43 contact and a 44 contact of the first relay K1 is closed, a normally closed contact is arranged between a 71 contact and a 72 contact of the second relay K2, the first indicator lamp is turned on, the opening indicating loop is cut off, and the closing indicating loop is switched on to simulate a closing state;
when the opening button is pressed, the contact 23 and the contact 24 of the opening button are electrified, the contact A1 and the contact A2 of the third relay K3 are electrified, so that the normally closed contact between the contact 51 and the contact 52 of the third relay K3 is opened, the normally open contact between the contact 13 and the contact 14 of the second relay K2 is connected, and the self-locking of the first relay K1 is released;
the normally closed contact between the 71 contact and the 72 contact of the second relay K2 is opened, the closing indicating circuit is cut off, the normally closed contact between the 71 contact and the 72 contact of the first relay K1 is closed again, the second indicating lamp is lightened, and the opening indicating circuit is closed again to simulate the opening state.
4. The relay service test device of claim 3,
when a fault tripping test is carried out, the power supply F1 is started, the F650 comprehensive protection relay and the L90 line differential protection relay are started, the closing button is pressed, and a closing indication loop is connected to simulate the running state of field actual equipment;
the first test interface is used for being connected with a current output terminal of a relay protection box for testing, the output current of the relay protection box is set, when the output current reaches or exceeds an overcurrent trip setting value or a zero-sequence trip setting value of the F650 comprehensive protection relay, a 31 contact and a 33 contact of the F650 comprehensive protection relay or a 34 contact and a 46 contact of the F650 comprehensive protection relay output first fault simulation signals, an A1 contact of the second relay K2 and an A2 contact are electrically operated, a normally closed contact between a 51 contact and a 52 contact of the second relay K2 is disconnected, self-locking of the first relay K1 is released, the closing indication loop is cut off, a normally closed contact between a 71 contact and a 72 contact of the first relay K1 is connected, the second indication lamp is turned on, and the opening indication loop is connected to simulate an opening state.
5. The relay service test device of claim 3,
when a fault tripping test is carried out, the power supply F1 is started, the F650 comprehensive protection relay and the L90 differential relay are started, the closing button is pressed, and a closing indication loop is connected to simulate the running state of field actual equipment;
the second test interface is used for being connected with a current output terminal of the relay protection box for testing, an output current is arranged on the relay protection box for testing, when the output current reaches or exceeds a differential trip setting value of the L90 differential relay, and when a second fault analog signal is output between an H1c contact and an H1b contact of the L90 differential relay, an A1 contact and an A2 contact of the second relay K2 are electrified to act, so that a normally closed contact between a 51 contact and a 52 contact of the second relay K2 is disconnected, self-locking of the first relay K1 is released, a closing indication loop is cut off, a normally closed contact between a 71 contact and a 72 contact of the first relay K1 is connected, the second indication lamp is lightened, and the opening indication loop is connected to simulate an opening state.
6. The relay service test apparatus of claim 4, further comprising: the first time test interface is connected with the L90 differential relay through the first relay K1; the second time test interface is connected with the F650 comprehensive protection relay through the second relay K2;
the 1 terminal of the first time test interface is connected with the 13 contact of the first relay K1; the 2 terminal of the first time test interface is connected with the 14 contact of the first relay K1;
the 1 terminal of the second time test interface is connected with the 13 contact of the second relay K2; the 2 terminal of the second time test interface is connected with the 14 contact of the second relay K2;
when the setting value of the F650 comprehensive protection relay is verified, the time test terminal of the relay protection box for testing is connected with the 1 and 2 terminals of the second time test interface of the F650 comprehensive protection relay, and when the A1 contact and the A2 contact of the second relay K2 receive a protection action signal sent by the F650 comprehensive protection relay, the normally open contact between the 13 contact and the 14 contact of the second relay K2 is switched on, so that the simulated fault action time is recorded on the relay protection box for testing.
7. The relay service test device of claim 6,
when the setting value of the L90 differential relay is verified, the L90 differential relay is connected with a current output terminal of a relay protection box for testing, an output current is arranged on the relay protection box for testing, when the output current reaches or exceeds the differential trip setting value of the L90 differential relay, and a second fault analog signal is output between an H1c contact and an H1b contact of the L90 differential relay, an A1 contact and an A2 contact of the second relay K2 are electrically operated, so that a normally closed contact between a 51 contact and a 52 contact of the second relay K2 is disconnected, the self-locking of the first relay K1 is released, a closing indication loop is cut off, a normally closed contact between a 71 contact and a 72 contact of the first relay K1 is connected, the second indication lamp D2 is turned on, and a separating indication loop is connected to simulate a separating brake state; and simultaneously connecting the relay protection box time testing terminal for testing with the 1 and 2 terminals of the first time testing interface of the L90 differential relay, wherein when the A1 contact and the A2 contact of the first relay K1 receive the second fault simulation signal sent by the L90 differential relay, a normally open contact between the 13 contact and the 14 contact of the first relay K2 is switched on, so that the simulated fault action time is recorded on the relay protection box for testing.
8. A relay overhaul test system, comprising: the relay overhaul test device as claimed in any one of claims 1 to 7;
the L90 differential relay in each relay maintenance test device further comprises an Rx1 port and a Tx1 port, Rx1 ports of the two L90 differential relays are connected through a first differential optical fiber, and Tx1 ports of the two L90 differential relays are connected through a second differential optical fiber;
the differential fault signal generated by one L90 differential relay in the two L90 differential relays is transmitted to the other L90 differential relay through the first differential optical fiber and the second differential optical fiber, so that the H1c contact and the H1b contact in the other L90 differential relay output fault analog signals, the A1 contact and the A2 contact of the second relay K2 are electrically operated, the normally closed contact between the 51 contact and the 52 contact of the second relay K2 is disconnected, the self-locking of the first relay K1 is released, a circuit for indicating the closing and the opening is realized, the 71 contact and the 72 contact of most first relays K1 are connected, the second indicator light point D2 is lightened, and the opening and closing state is simulated.
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| CN202110133758.2A CN113049949A (en) | 2021-02-01 | 2021-02-01 | Relay overhaul testing device and system |
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