CN203551707U - A 35 kV capacitor discharge coil monitoring device for a substation - Google Patents
A 35 kV capacitor discharge coil monitoring device for a substation Download PDFInfo
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- CN203551707U CN203551707U CN201320585318.1U CN201320585318U CN203551707U CN 203551707 U CN203551707 U CN 203551707U CN 201320585318 U CN201320585318 U CN 201320585318U CN 203551707 U CN203551707 U CN 203551707U
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- discharge coil
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Abstract
本实用新型公开了一种变电站用35kV电容器放电线圈监控装置，它含有机壳，所述机壳内安装有智能电压表，所述智能电压表设置有低位、中位和高位三个静触点，所述三个静触点分别与不同颜色的指示灯连接，所述指示灯安装在所述机壳的面板上，所述智能电压表的指针作为动触点，所述智能电压表的接线柱与放电线圈二次瓷套接线柱连接。所述机壳内设置有空腔，该空腔能够套住二次瓷套。所述中位静触点还与电铃连接。本实用新型能够及时提醒变电站运维人员实时监控电容器和放电线圈的运行状态，消除变电站对电容器内部轻微故障和放电线圈断线的监控盲区，提高电力电容器运行的可靠性和安全性，防止人身触电危险。
The utility model discloses a monitoring device for a 35kV capacitor discharge coil used in a substation, which includes a casing, and an intelligent voltmeter is installed in the casing, and the intelligent voltmeter is provided with three static contacts of a low position, a middle position and a high position , the three static contacts are respectively connected to indicator lights of different colors, the indicator lights are installed on the panel of the casing, the pointer of the smart voltmeter is used as a moving contact, and the wiring of the smart voltmeter The column is connected with the discharge coil secondary porcelain sleeve terminal. A cavity is arranged in the casing, and the cavity can cover the secondary porcelain sleeve. The neutral static contact is also connected with the electric bell. The utility model can timely remind the operation and maintenance personnel of the substation to monitor the operation status of the capacitor and the discharge coil in real time, eliminate the monitoring blind area of the substation for minor faults inside the capacitor and the disconnection of the discharge coil, improve the reliability and safety of the operation of the power capacitor, and prevent personal electric shock Danger.
Description
technical field:
The utility model relates to a kind of transforming plant container, particularly relates to 35kV capacitor discharge coil supervising device for a kind of transformer station.
background technology:
Transformer station is daily for adjustment System voltage, operation need to often be thrown, be cut to capacitor, and its interval time is very short, after capacitor group deenergization, between its electrode, store a large amount of electric charges, can not disappear very soon voluntarily, at short notice, its interpolar has very high residual charge, when again closing a floodgate power transmission, cause voltage stack, will produce very high superpotential, jeopardize the safe operation of capacitor and electric system.
State Grid Corporation of China carries out " three collection five are large " System Construction recently, and transformer station requires unattended, and capacitor is operated by remote control.500kV transformer station is along with power network development in the near future, and Power grid structure is tending towards rationally, and capacitor will be carried out automatic switching.Capacitor will bleed off residual charge with discharge resistance can not meet power network development, because discharge resistance electric discharge needs 10s even longer.Therefore, discharge coil must be installed, by discharge coil and Parallel-connected Capacitor, form LC antiresonant circuit, electric charge is consumed at humorous center of percussion, discharge coil can drop to 50V by capacitor terminal voltage in 5s after capacitor deenergization.Because of discharge coil working site condition wind and weather out of doors throughout the year, easily there is broken string and causes potential safety hazard again.
When in capacitor group, a certain capacitor internal of arbitrary phase has subelement to be damaged fault, O&M personnel monitor less than, capacitor, in day normal off closing operation, cannot be monitored the duty of discharge coil, and this dangerous point of capacitor is a monitoring blind area at present.The wiring of 500kV substation capacitors is mainly single star-connection, and the capacitor unit mode of connection is two string ten upper and lower two-layer layouts, and protective device is the poor out-of-balance current protection of bridge (interior fuse).The 35kV of transformer station capacitor reactive compensation capacity is very large, wiring more complicated.Capacitor is installed on metal frame by insulator, but framework is directly connected with the charged position of capacitor, and by support insulator and ground insulation, framework in service is charged.For the general upper strata of 35kV capacitor framework voltage-to-ground, can reach 15 kV left and right, lower floor's framework voltage-to-ground can reach 5kV left and right.Consider that insulation breakdown causes capacitor case and supports the factors such as framework is charged, so framework must be controlled as a dangerous point, prevent from getting an electric shock.
utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of simple in structure, easy to use, can send to capacitor internal fault and discharge coil disconnection fault the 35kV capacitor discharge coil supervising device for transformer station of sound and light alarm.
The technical solution of the utility model is: 35kV capacitor discharge coil supervising device for a kind of transformer station, contain casing, intelligent voltage table is installed in described casing, described intelligent voltage table is provided with low level, meta and high-order three stationary contacts, described three stationary contacts are connected with the pilot lamp of different colours respectively, described pilot lamp is arranged on the panel of described casing, the pointer of described intelligent voltage table is as moving contact, and the binding post of described intelligent voltage table is connected with discharge coil secondary insulator binding post.
In described casing, be provided with cavity, this cavity can entangle secondary insulator.Described meta stationary contact is also connected with electric bell.Described low level, meta and high-order three stationary contacts are connected with red led with green, yellow respectively.Described low level, meta and high-order three magnitudes of voltage corresponding to stationary contact are respectively 50V and following, 51-99V and 100V.Described meta stationary contact reaches Surveillance center by trigger and remote signalling and Remote-viewing Technology by signal.
The beneficial effects of the utility model are:
1, the utility model can remind the O&M personnel of transformer station to monitor in real time the running status of capacitor and discharge coil in time, eliminate the monitoring blind area of transformer station to capacitor internal minor failure and discharge coil broken string, improve power capacitor reliability of operation and security, prevent personal Danger Electric shock risk.
2, the utility model is connected on above discharge coil secondary low-voltage insulator, can also cover low pressure insulator and drench with rain to avoid wind to scrape, and prevents that discharge coil inner inlet from causing fault, effectively extends the serviceable life of discharge coil.
3, the utility model forms an integral body by voltage acquisition part, electric bell actuating section, orderly the combining of luminescence display part, through remote signalling and remote viewing means, can reach province's tune monitoring, according to the running status of this invention grasp capacitor, carry out switching operation in real time, effectively prevent the capacitor of fault to drop into operation of power networks, avoid power grid accident to occur.
4, the utility model adopts LED luminophor to form luminous display unit, and LED luminophor long service life is equally long with the switch position signal lamp life-span, and energy-conservation energy consumption reduces frequency of maintenance, increases economic efficiency.
5, the utility model is applicable to the transformer station that capacitor is equipped with discharge coil, can alleviate O&M personnel's workload, there is good practicality, can also eliminate a monitoring blind area of capacitor discharge link, after popularization, there is good Social benefit and economic benefit.
accompanying drawing explanation:
The structural representation of 35kV capacitor discharge coil supervising device for Tu1Wei transformer station;
Fig. 2 is the left view of 35kV capacitor discharge coil supervising device for transformer station shown in Fig. 1;
Fig. 3 is the circuit theory diagrams of 35kV capacitor discharge coil supervising device for transformer station shown in Fig. 1.
embodiment:
Embodiment: referring to Fig. 1, Fig. 2 and Fig. 3, in figure, bis-insulator binding posts of 1-, 2-voltage table binding post, 3-intelligent voltage table, 4-pointer, 5-stationary contact, 6-red led, 7-yellow indicator lamp, 8-green indicating lamp, 9-electric bell, 10-casing, 11-connection terminal.
In casing 10, be provided with cavity, this cavity can entangle secondary insulator.Meta stationary contact 5 is also connected with electric bell 9.Green indicating lamp 8, yellow indicator lamp 7 are connected with red led 6 respectively for low level, meta and high-order three stationary contacts.
The magnitude of voltage of low level, meta and high-order three stationary contact 5 correspondences is respectively 50V and following, 51-99V and 100V.Meta stationary contact 5 reaches Surveillance center's (not shown in FIG.) by trigger and remote signalling and Remote-viewing Technology by signal.
Substation capacitors wiring is single star-connection mode of two strings ten upper and lower two-layer layout, each is all equipped with a discharge coil mutually three-phase capacitor, discharge coil infield is to concentrate to fix, this device is connected on above discharge coil secondary low-voltage insulator, can also cover low pressure insulator drenches with rain to avoid wind to scrape, prevent that discharge coil inner inlet from causing fault, effectively extends the serviceable life of discharge coil.
(1) supervising device principle of work: this device voltage table pointer is moving contact is all stationary contact on this device voltage table range 100V to 50V, the following scale of 50V.Capacitor is when when running status, this device moving contact pointer points to 100V stationary contact, 100V moving contact junction closure, and red led is bright, and discharge coil secondary is output as ratings, proves that capacitor and discharge coil are working properly.Capacitor from electrical network breaks 5s, when this device moving contact pointer points to 50V and following stationary contact, 50V moving contact junction closure, green indicating lamp is bright, proves capacitor and discharge coil normal operation.
There is fault inside: capacitor be in operation this device moving contact pointer point to 99 to 51V between during meta stationary contact, 99V to 51 moving contact junction closure, the bright and electric bell alarming of red led, proves that capacitor internal has minor failure.Between capacitor discharge coil moving contact pointer from electrical network breaks still points to 99 to 51V, meta stationary contact red led is bright, proves that discharge coil has fault.
(2) scope of application: this device is applicable to the transformer station that capacitor is equipped with discharge coil.This device can alleviate O&M personnel's workload, there is good practicality, a monitoring blind area can eliminating capacitor discharge link, has had this supervising device can make O&M personnel have the foundation of the discharge coil internal fault that judges that capacitor internal minor failure is connected with it, and faulty equipment is isolated, maintainer can find out rapidly trouble spot according to this device to scene, the single capacitor isolation electric discharge of fault, the capacitor more renewing, simple and convenient, safe and efficient
Pay special attention to: as long as discharge coil supervising device amber light lights, while having maintenance capacitor simultaneously, prompting maintainer enters in capacitor fence after carrying out safety practice, capacitor upper strata supports framework and capacitor lower floor to support framework must do ground wire, because upper strata supports framework and capacitor lower floor to support that framework is charged during capacitor operation, residual charge does not discharge must do ground wire, has eliminated like this potential safety hazard, avoid personal Danger Electric shock risk, guaranteed electric power netting safe running.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of technical solutions of the utility model.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585318.1U CN203551707U (en) | 2013-09-23 | 2013-09-23 | A 35 kV capacitor discharge coil monitoring device for a substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320585318.1U CN203551707U (en) | 2013-09-23 | 2013-09-23 | A 35 kV capacitor discharge coil monitoring device for a substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551707U true CN203551707U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320585318.1U Expired - Fee Related CN203551707U (en) | 2013-09-23 | 2013-09-23 | A 35 kV capacitor discharge coil monitoring device for a substation |
Country Status (1)
| Country | Link |
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| CN (1) | CN203551707U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529345A (en) * | 2013-09-23 | 2014-01-22 | 国家电网公司 | Substation 35kV capacitor discharge coil operating state monitoring method and device |
| CN105842556A (en) * | 2016-03-03 | 2016-08-10 | 国网浙江省电力公司电力科学研究院 | Single-phase parallel capacitor-discharge coil discharge process calculation method |
| CN109449887A (en) * | 2018-10-26 | 2019-03-08 | 杭州沃伦森电气有限公司 | Capacitor group branch impedance performance monitoring systems |
-
2013
- 2013-09-23 CN CN201320585318.1U patent/CN203551707U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103529345A (en) * | 2013-09-23 | 2014-01-22 | 国家电网公司 | Substation 35kV capacitor discharge coil operating state monitoring method and device |
| CN103529345B (en) * | 2013-09-23 | 2016-07-06 | 国家电网公司 | Transformer station 35kV capacitor discharge coil running state monitoring method |
| CN105842556A (en) * | 2016-03-03 | 2016-08-10 | 国网浙江省电力公司电力科学研究院 | Single-phase parallel capacitor-discharge coil discharge process calculation method |
| CN105842556B (en) * | 2016-03-03 | 2019-01-11 | 国网浙江省电力公司电力科学研究院 | A kind of parallel single-phase capacitor-discharge coil discharge process calculation method |
| CN109449887A (en) * | 2018-10-26 | 2019-03-08 | 杭州沃伦森电气有限公司 | Capacitor group branch impedance performance monitoring systems |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20160923 |