CN204945227U - A kind of concentrator that uses carries out data collector - Google Patents
A kind of concentrator that uses carries out data collector Download PDFInfo
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- CN204945227U CN204945227U CN201520702549.5U CN201520702549U CN204945227U CN 204945227 U CN204945227 U CN 204945227U CN 201520702549 U CN201520702549 U CN 201520702549U CN 204945227 U CN204945227 U CN 204945227U
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Abstract
本实用新型公开了一种使用集中器进行数据采集装置，涉及电力设备领域，该装置由温度传感器和交流电流变送器二部分构成，交流电流变送器提供给温度传感器交流电压，温度传感器按线性关系转换台变油温、JB柜内温度为交流电流，分别串接入台区集中器的Ia、Ib电流端子；台区接地线接入穿心式电流互感器，互感器二次线接入台区集中器的Ic电流端子。将该台区集中器设置交采功能，用采系统客户端就能采集变压器油温、JB柜箱体温度、接地电流30分钟间隔点的曲线数据；其他系统可以调用该数据或实时召测以实现现场温度监测。
The utility model discloses a data acquisition device using a concentrator, which relates to the field of electric power equipment. The device is composed of a temperature sensor and an AC current transmitter. The AC current transmitter provides an AC voltage to the temperature sensor. The linear relationship conversion table changes the oil temperature and the temperature in the JB cabinet to AC current, which are respectively connected in series to the Ia and Ib current terminals of the concentrator in the station area; the ground wire in the station area is connected to the feed-through current transformer, and the secondary line of the transformer is connected Into the Ic current terminal of the concentrator in the Taiwan area. Set the concentrator of the station area with the alternate mining function, and the mining system client can collect the curve data of transformer oil temperature, JB cabinet body temperature, and ground current at 30-minute intervals; other systems can call this data or call for real-time measurement to Realize on-site temperature monitoring.
Description
Technical field
The utility model relates to field of electrical equipment, and particularly one uses concentrator to carry out data collector.
Background technology
In recent years, along with the develop rapidly of China's electric utility, power transformer sending out, defeated, become, more embody its central role in distribution system, the safe and reliable operation of power transformer is the basic guarantee that electric system normally runs.In order to improve the reliability of Operation of Electric Systems and extend the serviceable life of transformer, should monitor in real time the oil temperature of transformer.
Realize oil temperature to monitor in real time, need the facilities such as configuration distribution terminal, wireless transfer channel, background server, also need software support, later maintenance, cost is huge.
Each district achieves platform district summary table remote collection function at present, and platform district concentrator reads platform district summary table data by 485 interfaces, is transferred to the center of adopting with radio channel.Concentrator itself has the friendships such as electric current, voltage, power, electric degree and adopts function.For no other reason than that platform district summary table achieves this function, the friendship of concentrator is adopted function and is just abandoned and be out of use.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of concentrator that uses and carries out data collector, utilize platform district concentrator with adopting function, gather temperature of oil in transformer, JB cabinet spin manifold temperature, ground current uploading to adopting data center to realize remote monitoring function respectively.Become oil temperature by control and monitor console, obtain the running status of transformer; By monitoring JB cabinet spin manifold temperature, obtain cabinet inner electronic equipment running environment.By monitoring ground current, zero-sequence current situation when can obtain platform district three-phase current unbalance.
For achieving the above object, the utility model provides following technical scheme: one utilizes platform district concentrator picking platform to become oil temperature, temperature in JB cabinet, ground current device, it is characterized in that: the described platform district concentrator picking platform that utilizes becomes oil temperature, temperature in JB cabinet, ground current device is made up of temperature sensor and AC current transducer two part, AC current transducer is supplied to temperature sensor alternating voltage, temperature sensor linearly relation transfer table becomes oil temperature, JB in-cabinet temperature is alternating current, the Ia of string assess station district concentrator respectively, Ib current terminal, platform district ground wire access straight-through current transformer, the Ic current terminal of mutual inductor secondary line assess station district concentrator.
Preferably, described temperature sensor adopts Germany to congratulate Li Shi PT100 type platinum resistance thermometer sensor.
Preferably, described AC current transducer goes here and there access concentrator current terminal after adopting current transformer up-flow, the electric current ratio of current transformer is 1/20.
Adopt the beneficial effect of above technical scheme to be: this use concentrator carry out data collector utilize platform district concentrator with adopting function, gather temperature of oil in transformer, JB cabinet spin manifold temperature, ground current uploading to adopting data center to realize remote monitoring function respectively.Become oil temperature by control and monitor console, obtain the running status of transformer; By monitoring JB cabinet spin manifold temperature, obtain cabinet inner electronic equipment running environment.By monitoring ground current, zero-sequence current situation when can obtain platform district three-phase current unbalance.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is a kind of structure principle chart using concentrator to carry out data collector of the utility model.
Embodiment
A kind of preferred implementation using concentrator to carry out data collector of the utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 shows a kind of embodiment using concentrator to carry out data collector of the utility model: this utilizes platform district concentrator picking platform to become oil temperature, temperature in JB cabinet, ground current device is made up of temperature sensor and AC current transducer two part, AC current transducer is supplied to temperature sensor alternating voltage, temperature sensor linearly relation transfer table becomes oil temperature, JB in-cabinet temperature is alternating current, the Ia of string assess station district concentrator respectively, Ib current terminal, platform district ground wire access straight-through current transformer, the Ic current terminal of mutual inductor secondary line assess station district concentrator.
Temperature sensor adopts Germany to congratulate Li Shi PT100 type platinum resistance thermometer sensor, and platinum resistance thermometer sensor, element is as a kind of temperature sensor, and its principle of work is under temperature action, and the resistance value of resistive platinum wire changes along with the change of temperature.The relation of temperature and resistance is close to linear relationship, and deviation is minimum and along with the growth of time, deviation can be ignored, and electric property is stablized.During temperature zero degree, platinum resistance thermometer sensor, resistance is 100 ohm, and often rise 1 degree, resistance will rise 0.385 ohm.Platinum resistance allows the maximum measurement electric current passed through to be 5mA, and consequent temperature rise is not more than 0.3 DEG C.
AC current transducer goes here and there access concentrator current terminal after adopting current transformer up-flow, the electric current ratio of current transformer is 1/20.Owing to being technically difficult to the 0.5V constant AC voltage obtained, being fluctuated by impressed voltage by the electric current of platinum thermal resistance sensor, have impact on temperature survey accuracy.The scheme solved reads the phase voltage actual value of concentrator collection, divided by voltage multiplying power (220/0.5), directly obtains temperature sensor alternating voltage actual value.Dut temperature T=[(20 × u/440 × i-Za)-100]/0.385; Wherein Za is the resulting impedance of up-flow current transformer and sensor lead; U is platform district concentrator phase voltage value at that time; I is platform district concentrator phase current values at that time.
Temperature sensor linearly relation transfer table change oil temperature, JB in-cabinet temperature is alternating current, respectively Ia, Ib current terminal of string assess station district concentrator; Platform district ground wire access straight-through current transformer, the Ic current terminal of mutual inductor secondary line assess station district concentrator.This district's concentrator is arranged friendship and adopts function, just can gather the curve data of temperature of oil in transformer, JB cabinet spin manifold temperature, ground current 30 minutes spaced points by extraction system client; Other system can call these data or call together in real time surveys to realize scene temperature monitoring.
Pt100 platinum resistance thermometer sensor, selects Germany to congratulate Li Shi A level (anticorrosion, grease proofing, the water proof type of precision 0.1, silver-plated tetrafluoro five meters lead-in wire line, temperature range 0-500 degree Celsius), according to transformer oil surface height, select 15-30cm to insert the threaded fixing probe of deep length respectively, go deep into pasta 5cm from transformer thermometer hole with probe and be advisable.The shielding line of lead-in wire must reliable ground.In JB cabinet, platinum resistance thermometer sensor, probe selects circular hole SMD (1.5 meters of lead-in wires), to be fixed in cabinet above low pressure inlet wire.
Temperature sensor is with after the serial connection of up-flow current transformer small area analysis side, and two terminations enter the 0.5V side of small voltage transformer (220V/0.5V).Small voltage transformer 220V side joint enters electric energy meter Ua and N line; Big current side access concentrator current terminal as1 and as2 of fuel temperature measurement up-flow current transformer; Big current side access concentrator current terminal bs1 and bs2 of temperature measurement current transformer in JB cabinet.
Precision 0.2S level punching selected by ground current mutual inductor, and electric current compares 200A/5A.Primary side access ground wire, the direct access concentrator current terminal of secondary side cs1 and cs2.Secondary load low (1.25VA) as far as possible selected by current transformer, at lightning arrester discharge, when big current is from ground wire foldback, can utilize iron core supersaturation like this, prevents the excessive damage concentrator of secondary current.
In Electric Power Marketing System, setting table district concentrator is handed over and adopted function is open mode, after adopting flow setting, can call the three-phase voltage and three-phase electricity flow valuve of surveying concentrator with extraction system by the interval of 30 minutes together by friendship.As long as other monitoring systems are transferred or called together in real time survey these data, substitute into public T=[(20 × u/440 × i-Za)-100]/0.385 and can obtain temperature parameter.
Above is only preferred implementation of the present utility model; it should be pointed out that for the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (3)
1. a use concentrator carries out data collector, it is characterized in that: described use concentrator carries out data collector and is made up of temperature sensor and AC current transducer two part, AC current transducer is supplied to temperature sensor alternating voltage, temperature sensor linearly relation transfer table change oil temperature, JB in-cabinet temperature is alternating current, Ia, Ib current terminal of string assess station district concentrator respectively, platform district ground wire access straight-through current transformer, the Ic current terminal of mutual inductor secondary line assess station district concentrator.
2. use concentrator according to claim 1 carries out data collector, it is characterized in that: described temperature sensor adopts Germany to congratulate Li Shi PT100 type platinum resistance thermometer sensor.
3. use concentrator according to claim 1 carries out data collector, it is characterized in that: described AC current transducer goes here and there access concentrator current terminal after adopting current transformer up-flow, the electric current ratio of current transformer is 1/20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520702549.5U CN204945227U (en) | 2015-09-11 | 2015-09-11 | A kind of concentrator that uses carries out data collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520702549.5U CN204945227U (en) | 2015-09-11 | 2015-09-11 | A kind of concentrator that uses carries out data collector |
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| Publication Number | Publication Date |
|---|---|
| CN204945227U true CN204945227U (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520702549.5U Expired - Fee Related CN204945227U (en) | 2015-09-11 | 2015-09-11 | A kind of concentrator that uses carries out data collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508258A (en) * | 2017-02-28 | 2018-09-07 | 新疆心连心能源化工有限公司 | Monitoring system |
-
2015
- 2015-09-11 CN CN201520702549.5U patent/CN204945227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508258A (en) * | 2017-02-28 | 2018-09-07 | 新疆心连心能源化工有限公司 | Monitoring system |
| CN108508258B (en) * | 2017-02-28 | 2024-05-17 | 新疆心连心能源化工有限公司 | Monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20170911 |
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| CF01 | Termination of patent right due to non-payment of annual fee |