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
- capacitor
- capacitor discharge
- transformer station
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- 239000003990 capacitor Substances 0.000 title claims abstract description 69
- 238000012806 monitoring device Methods 0.000 title abstract 4
- 239000003086 colorant Substances 0.000 claims abstract description 4
- 239000012212 insulator Substances 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 abstract description 6
- 239000000919 ceramic Substances 0.000 abstract 2
- 206010014357 Electric shock Diseases 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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Abstract
The utility model discloses a 35 kV capacitor discharge coil monitoring device for a substation. The 35 kV capacitor discharge coil monitoring device comprises a casing. An intelligent voltmeter is disposed in the casing. The intelligent voltmeter is provided with a low-level fixed contact, a middle-level fixed contact and a high-level fixed contact which are connected with indicating lamps in different colors. The indicating lamps are disposed on a panel of the housing. Pointers of the intelligent voltmeter act as movable contacts. Binding posts of the intelligent voltmeter are connected with secondary ceramic sleeve binding posts of the discharge coil. A cavity is arranged in the casing and can sleeve a secondary ceramic sleeve. The middle-level fixed contact is further connected with an electric bell. The 35 kV capacitor discharge coil monitoring device can prompt substation operation staff in time to monitor operation states of a capacitor and the discharge coil in real time, eliminate monitoring blind areas of internal slight faults of the capacitor and the disconnection of the discharge coil in the substation, improve operation reliability and safety performance of the power capacitor, and prevent risks of electric shocks to human bodies.
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)
- 35kV capacitor discharge coil supervising device for 1.Yi Zhong transformer station, contain casing, intelligent voltage table is installed in described casing, it is characterized in that: 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, and 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.
- 2. 35kV capacitor discharge coil supervising device for transformer station according to claim 1, is characterized in that: in described casing, be provided with cavity, this cavity can entangle secondary insulator.
- 3. 35kV capacitor discharge coil supervising device for transformer station according to claim 1, is characterized in that: described meta stationary contact is also connected with electric bell.
- 4. 35kV capacitor discharge coil supervising device for transformer station according to claim 1, is characterized in that: described low level, meta and high-order three stationary contacts are connected with red led with green, yellow respectively.
- 5. 35kV capacitor discharge coil supervising device for transformer station according to claim 1, is characterized in that: described low level, meta and high-order three magnitudes of voltage corresponding to stationary contact are respectively 50V and following, 51-99V and 100V.
- 6. according to 35kV capacitor discharge coil supervising device for transformer station described in claim 1-5 any one, it is characterized in that: described meta stationary contact reaches Surveillance center by trigger and remote signalling and Remote-viewing Technology by signal.
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 |
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| 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 |
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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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| 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: 20140416 Termination date: 20160923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |