CN204103333U - A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate - Google Patents
A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate Download PDFInfo
- Publication number
- CN204103333U CN204103333U CN201420627561.XU CN201420627561U CN204103333U CN 204103333 U CN204103333 U CN 204103333U CN 201420627561 U CN201420627561 U CN 201420627561U CN 204103333 U CN204103333 U CN 204103333U
- Authority
- CN
- China
- Prior art keywords
- resistance
- earthed switch
- circuit plate
- capacitance circuit
- switch electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate, comprise circuit board (1) and be welded on binding post (2), resistance R1 (3) and the electric capacity C (4) on circuit board (1); The two ends of described resistance R1 (3) are connected with binding post (2) respectively; Described electric capacity C (4) is in parallel with resistance R1 (3).After resistance-capacitance circuit plate of the present utility model is connected in series earthed switch electric blocking circuit, solves long-term energising and cause heating to burn out the problem of latching electromagnet coil, improve device security reliability service; And the utility model structure is simple, reasonable in design, safe and reliable, with low cost.
Description
Technical field
The utility model relates to a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate.
Background technology
10kV middle truck cabinet, it is made up of circuit breaker cart room, bus-bar room, cable vault, relay control room.In cabinet, configuration mainly contains circuit breaker, current transformer, earthed switch and charged display device.The advantages such as the type compact equipment, closure are good, handcart can exchange, and have and safeguard simply, security of operation, easy to operate.Switch cubicle, built with safe and reliable interlock, meets five anti-requirements completely.Wherein charged display device is made up of (abbreviation electrification display) high pressure sensor and indoor high-voltage charge display device, coordinate with electromagnetic lock, realize latch switch handle and Xiamen, and earthed switch operation adopts and charged display device is interlocked, at gate-dividing state, back door cannot be opened, only in line outage, when electrification display display high pressure is without electricity, earthed switch just can close, above function reaches and prevents charged conjunction earthed switch, mistakenly entering charged chamber function.
But this type switch cubicle is due to earthed switch electric blocking circuit design reason, the long-term charging operation of latching electromagnet, produce induced electromotive force when causing coil heating or electrification display output relay contact to disconnect and burn out latching electromagnet, earthed switch handle hole interlocking valve can be caused not press, operating handle cannot insert, earthed switch can not operate, and have impact on circuit and overhaul of the equipments, have impact on electric power netting safe running and powers in time to user.
Summary of the invention
The purpose of this utility model is to generate heat the problem burnt out for the 10kV middle truck cabinet earthed switch electric blocking electromagnet existed in prior art, if namely latching electromagnet damages, earthed switch handle hole interlocking valve can be caused not press, operating handle cannot insert, earthed switch can not operate, affect the problem of electric power netting safe running, provide a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate.
To achieve these goals, the utility model have employed following technical scheme:
A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate, comprises circuit board and welding binding post, resistance R1 and electric capacity C on circuit boards; The two ends of described resistance R1 are connected with binding post respectively; Described electric capacity C is in parallel with resistance R1.
Further illustrate as the utility model, above-described circuit board is of a size of 650mm (length) × 400mm (wide).
Further illustrate as the utility model, above-described resistance R1 is the wire resistor of 2K Ω-4K Ω, 5W-8W, withstand voltage 1000V.
Further illustrate as the utility model, above-described electric capacity C is the electric capacity of withstand voltage 630V, 100nJ-200nJ.
Further illustrate as the utility model, above-described binding post is 4 formula binding posts, and joins 5mm construction bolt and pad.
Operation principle:
The utility model is connected in series in 10kV middle truck cabinet earthed switch electric blocking circuit, controls the positive contact+kM of power supply through controlling another normal opened contact DOX1 connecing electrification display test button SA, electrification display normal opened contact K1, electrification display after sky opens 1ZK; Described connect electrification display test button SA and electrification display normal opened contact K1 parallel connection after meet electrification display coil D0X, then open 1ZK and meet through controlling sky the negative contact-kM controlling power supply, form circuit loop; In addition, the negative contact-kM that 1ZK connects control power supply is opened, formation circuit loop through controlling sky after another normal opened contact DOX1 of electrification display is connected in series resistance-capacitance circuit plate of the present utility model, latching electromagnet TG successively.Above-mentioned all lines adopt 1.5mm
2soft copper heart yearn connects, and forms a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit.To power on circuitry, after current-limiting resistance dividing potential drop, record at latching electromagnet coil that voltage is 186V, electric current is 11.57mA, temperature is 34.6 DEG C, wherein heating obviously reduces nearly 50%, after adding device, circuit board, reduce latching electromagnet working voltage and electric current, solve long-term energising and cause heating to burn out the problem of latching electromagnet coil.
For ease of resistance-capacitance circuit plate secondary connection, be of a size of that 100mm (length) × 50mm (wide) × 2mm (thick) insulation board is installed on the right side of control room in the middle part of secondary wire slot with one, described resistance-capacitance circuit plate is installed on insulation board.
Compared with prior art, the beneficial effect that possesses of the utility model:
1. structure is simple, reasonable in design, safe and reliable, with low cost.
2. in earthed switch electric blocking start-up circuit, utilize its pick-up voltage of latching electromagnet coil lower than the characteristic of operating voltage, take to seal in resistance-capacitance circuit plate to 10kV middle truck cabinet earthed switch electric blocking circuit, the electric current be reduced by, reduce its energized power, just coil heating can be reduced, extension coil useful life; When the coil is de-energized, the energy in resistance-capacitance circuit absorbing circuit, just can avoid coil to burn out.
3. select a latching electromagnet, directly access 220V circuit, record that electric current is 16.1mA, temperature is 64.2 DEG C; Alternative selects a latching electromagnet, access the laggard electricity that works of resistance-capacitance circuit plate of the present utility model, after current-limiting resistance dividing potential drop, record at latching electromagnet coil that voltage is 186V, electric current is 11.57mA, temperature is 34.6 DEG C, wherein heating obviously reduces, after adding device, circuit board, reduce latching electromagnet working voltage and electric current, solve long-term energising and cause heating to burn out the problem of latching electromagnet coil.
4. resistance-capacitance circuit plate of the present utility model is applicable to all transformer stations and switching station is equipped with 10kV middle truck cabinet switch cubicle, by at cabinet instrument indoor location resistance-capacitance circuit plate, be connected in series in earthed switch electric blocking circuit, latching electromagnet operating voltage can be reduced, avoid when coil heating and electrification display output relay contact disconnect and produce the phenomenon that induced electromotive force burns out latching electromagnet, decrease the generation of earthed switch electric blocking fault, extend the useful life of latching electromagnet coil, improve device security reliability service.
Accompanying drawing explanation
Fig. 1 is theory structure schematic diagram of the present utility model.
Fig. 2 is the circuit theory diagrams that the utility model accesses in 10kV middle truck cabinet earthed switch.
Reference numeral:
In FIG, 1-circuit board, 2-binding post, 3-resistance R1,4-electric capacity C; In fig. 2 ,+KM ,-KM are for controlling power supply, and 1ZK opens for controlling sky, and SA is electrification display test button, K1 is electrification display normal opened contact, and DOX is electrification display coil, and DOX1 is another normal opened contact of electrification display, TG is latching electromagnet, and R1 is resistance, and C is electric capacity.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Embodiment 1:
A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate, comprises circuit board 1 and welding binding post 2, resistance R on the circuit card 1
13 and electric capacity C4; Described resistance R
1the two ends of 3 are connected with binding post 2 respectively; Described electric capacity C4 and resistance R
13 is in parallel.Described circuit board 1 is of a size of 650mm × 400mm.Described resistance R
13 is the wire resistor of 2K Ω, 5W, withstand voltage 1000V.Described electric capacity C4 is the electric capacity of withstand voltage 630V, 100nJ.Described binding post 2 is 4 formula binding posts, and joins 5mm construction bolt and pad.
Embodiment 2:
A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate, comprises circuit board 1 and welding binding post 2, resistance R on the circuit card 1
13 and electric capacity C4; Described resistance R
1the two ends of 3 are connected with binding post 2 respectively; Described electric capacity C4 and resistance R
13 is in parallel.Described circuit board 1 is of a size of 650mm × 400mm.Described resistance R
13 is the wire resistor of 4K Ω, 8W, withstand voltage 1000V.Described electric capacity C4 is the electric capacity of withstand voltage 630V, 200nJ.Described binding post 2 is 4 formula binding posts, and joins 5mm construction bolt and pad.
The resistance-capacitance circuit plate of above embodiment is all applicable to all transformer stations and switching station is equipped with 10kV middle truck cabinet switch cubicle; After accessing this resistance-capacitance circuit plate, the phenomenon that induced electromotive force burns out latching electromagnet is produced when coil heating and electrification display output relay contact can be avoided to disconnect, reduce the generation of earthed switch electric blocking fault, extend the useful life of latching electromagnet coil, improve device security reliability service.
Claims (5)
1. a 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate, is characterized in that: comprise circuit board (1) and be welded on binding post (2), resistance R1 (3) and the electric capacity C (4) on circuit board (1); The two ends of described resistance R1 (3) are connected with binding post (2) respectively; Described electric capacity C (4) is in parallel with resistance R1 (3).
2. a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate according to claim 1, is characterized in that: described circuit board (1) is of a size of 650mm × 400mm.
3. a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate according to claim 1, is characterized in that: described resistance R1 (3) is the wire resistor of 2K Ω-4K Ω, 5W-8W, withstand voltage 1000V.
4. a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate according to claim 1, is characterized in that: the electric capacity that described electric capacity C (4) is withstand voltage 630V, 100nJ-200nJ.
5. a kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate according to claim 1, is characterized in that: described binding post (2) is 4 formula binding posts, and joins 5mm construction bolt and pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627561.XU CN204103333U (en) | 2014-10-28 | 2014-10-28 | A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420627561.XU CN204103333U (en) | 2014-10-28 | 2014-10-28 | A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103333U true CN204103333U (en) | 2015-01-14 |
Family
ID=52271734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420627561.XU Active CN204103333U (en) | 2014-10-28 | 2014-10-28 | A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204103333U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684847A (en) * | 2016-11-24 | 2017-05-17 | 国家电网公司 | Circuit for preventing latching electromagnet from burning out |
| CN108512106A (en) * | 2018-05-18 | 2018-09-07 | 河南森源电气股份有限公司 | A kind of bus equipment cabinet and its earth handcart exclusive circuit |
-
2014
- 2014-10-28 CN CN201420627561.XU patent/CN204103333U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684847A (en) * | 2016-11-24 | 2017-05-17 | 国家电网公司 | Circuit for preventing latching electromagnet from burning out |
| CN108512106A (en) * | 2018-05-18 | 2018-09-07 | 河南森源电气股份有限公司 | A kind of bus equipment cabinet and its earth handcart exclusive circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108808536A (en) | A kind of automatic change-over of the double bypasses of pull-out type band | |
| CN104021926B (en) | A kind of power transformer having D.C. magnetic biasing and no-power compensation function concurrently | |
| CN204103333U (en) | A kind of 10kV middle truck cabinet earthed switch electric blocking resistance-capacitance circuit plate | |
| CN202748425U (en) | Residual current protection uninterrupted testing device | |
| CN203909174U (en) | Testing device used for residue current operated protective device | |
| CN202996511U (en) | Novel power transformer with direct-current magnetic bias compensation function | |
| CN203192723U (en) | Under-voltage trip gear for breaker | |
| CN205195265U (en) | A safe switching -on device for 10kV reducing transformer | |
| CN204668758U (en) | A kind of High-low voltage switch cabinet | |
| CN209592959U (en) | The relay protection system of DC distribution net | |
| CN203607701U (en) | Centrally Installed high-voltage switchgear with electroscopic window | |
| CN203445439U (en) | Combined interlock relay device | |
| CN102969126B (en) | There is D.C. magnetic biasing and compensate the novel electric power transformator of function | |
| CN201601395U (en) | 20kv high voltage switch cabinet | |
| CN208588779U (en) | Central cabinet grounding switchs electric blocking signal circuit | |
| CN204068206U (en) | The control device of steam turbine jumped by a kind of generator connection | |
| CN203086041U (en) | Switch cabinet with on-line temperature measuring device | |
| CN204189704U (en) | A kind of energy storage travel switch | |
| CN203103902U (en) | Microcomputer protection switching-on control loop | |
| CN204669030U (en) | Low tension battery charging circuit during a kind of pure electric coach charging heating | |
| CN203134515U (en) | Novel power transformer based on magnetic temperature compensation and having function of direct-current magnetic bias suppression | |
| CN204230147U (en) | Novel 35kV and with CT type spring operating mechanism vacuum circuit-breaker | |
| CN202711902U (en) | Pre-magnetizing device for power supply main transformer of power line | |
| CN201854040U (en) | Intelligent low-voltage power capacitor | |
| CN207474337U (en) | Prevent contact arc discharge device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |