CN202260436U - System overvoltage damping cabinet - Google Patents
System overvoltage damping cabinet Download PDFInfo
- Publication number
- CN202260436U CN202260436U CN2011203839886U CN201120383988U CN202260436U CN 202260436 U CN202260436 U CN 202260436U CN 2011203839886 U CN2011203839886 U CN 2011203839886U CN 201120383988 U CN201120383988 U CN 201120383988U CN 202260436 U CN202260436 U CN 202260436U
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- cabinet
- overvoltage
- phase
- intelligent
- voltmeter
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Abstract
The utility model relates to a system overvoltage damping cabinet which comprises a cabinet body, a header, an intelligent microcomputer device, a phase voltmeter, a line voltmeter, a line voltmeter change-over switch, a wall bushing, a primary simulation plate, a copper nameplate, an illuminating lamp, a secondary chamber, an isolation handcart, a quick tripping device, a peak overvoltage absorber, a high-voltage fuse, an anti-resonance voltage transformer and an intelligent single-phase instantaneous switch, wherein the header is arranged on the top of the cabinet body; the intelligent microcomputer device, the phase voltmeter, the line voltmeter, the line voltmeter change-over switch, the primary simulation plate, the copper nameplate and the illuminating lamp are arranged at one side of the cabinet body, and the wall bushing is positioned at the other side of the cabinet body; and the secondary chamber, the isolation handcart, the quick tripping device, the peak overvoltage absorber, the high-voltage fuse, the anti-resonance voltage transformer and the intelligent single-phase instantaneous switch are positioned in the cabinet body. The system overvoltage damping cabinet is capable of effectively overcoming the defect of ageing or breakdown of an overvoltage protection element in a system.
Description
Technical field
The utility model relates to a kind of damping cabinet, relates in particular to a kind of system overvoltage damping cabinet.
Background technology
The following several kinds of overvoltage of ubiquity in the present middle low-pressure system: the atmospheric over-voltage that produces when arc overvoltage that produces when the switching overvoltage that the circuit breaker on-off action produces, single-phase earthing and thunderbolt etc.Accidents such as existing needleless still is to these superpotential complete preservation schemes, and cable is blown out through regular meeting, motor insulation breakdown, Explosion of on Arrester and voltage transformer burn.The reason that this type of accident takes place; Except that the performance of overvoltage protection device product own; For different system, need the type of taking into account system transmission line when using the overvoltage protection product, earthing mode of the network configuration of electric line, the character of load and system or the like.
To the system of complicacy like this, although in these systems, install various overvoltage protection products, because of frequent system operation overvoltage can cause protection component aging gradually; The arc light resonance overvoltage that occurs at random and system's ferro-resonance over-voltage can cause the extremely aging or directly puncture of speed of overvoltage protection element; When the compensation condenser fuse melting, can produce overvoltage, the loop inductance storage power can cause the aging or puncture of overvoltage protection element; Protector leaks gas or makes moist, and also can cause aging or puncture.Still be difficult to suppress various types of systems overvoltage comprehensively.
The utility model content
In view of this; Be necessary to provide a kind of system overvoltage damping cabinet, be intended to present situation, total solution is provided to overvoltage control in the present middle low-pressure system; Effectively remedy the aging or puncture of overvoltage protection element in the system, form the complete system's overvoltage protection solution of a cover.
The utility model is to realize like this; A kind of system overvoltage damping cabinet, it comprises cabinet, brows, intelligent microcomputer device, phase voltage table, line voltmeter, line voltmeter change-over switch, wall bushing, once simulates board, copper nameplate, illuminating lamp, secondary chamber, isolation handcart, quick release, spike surge absorber, high-tension fuse, antiresonance voltage transformer and single-phase intelligent instant shut-in.Said brows are arranged on the top of said cabinet; Said intelligent microcomputer device, said phase voltage table, said line voltmeter, said line voltmeter change-over switch, saidly once simulate the side that board, said copper nameplate and said illuminating lamp are arranged on said cabinet; Said wall bushing is arranged on the opposite side of said cabinet, and said secondary chamber, said isolation handcart, said quick release, said spike surge absorber, said high-tension fuse, said antiresonance voltage transformer and said single-phase intelligent instant shut-in are arranged on the inside of said cabinet.Said intelligent microcomputer device, said phase voltage table, said line voltmeter, said line voltmeter change-over switch, said quick release, said spike surge absorber, said high-tension fuse, said antiresonance voltage transformer and said single-phase intelligent instant shut-in electrically connect.
Further, said system overvoltage damping cabinet also comprises disconnecting link electromagnetic lock, auxiliary switch, switch operation mechanism, and it is inner that said auxiliary switch and said switch operation mechanism are arranged on said cabinet, and said disconnecting link electromagnetic lock is arranged on a side of said cabinet.
System's overvoltage damping cabinet that the utility model provides provides the overvoltage protection scheme of comprehensively comprehensive integral body, can design production according to the system parameters of the different demands of user; Eliminate the randomness abnormal overvoltage effectively; Absorb system's overvoltage of macro-energy; When system single-phase earth fault is eliminated, the impact charging current of restricted passage current transformer (PT) effectively, the fuse of protective current instrument transformer is not burnt; Install quick release (FU) on the spike absorber additional, realize that really fault breaks away from fast.
Description of drawings
The front view of system's overvoltage damping cabinet that Fig. 1 provides for the utility model first execution mode;
Fig. 2 is the left view of system's overvoltage damping cabinet among Fig. 1;
The front view of system's overvoltage damping cabinet that Fig. 3 provides for the utility model second execution mode;
Fig. 4 is the left view of system's overvoltage damping cabinet among Fig. 3.
Symbol description
| System's overvoltage damping cabinet | 100,200 |
| |
40,50 |
| Brows | 1 |
| The |
2 |
| The phase voltage table | 3 |
| The line voltmeter | 4 |
| The line voltmeter change-over switch | 5 |
| Wall bushing | 6 |
| Once simulate board | 7 |
| The |
8 |
| The disconnecting link electromagnetic lock | 9 |
| |
10 |
| Switch operation mechanism | 11 |
| Illuminating |
12 |
| |
13 |
| |
14 |
| The spike surge absorber | 15 |
| High- |
16 |
| The |
17 |
| The single-phase intelligent instant shut-in | 18 |
| |
19 |
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
System's overvoltage damping cabinet (WZG) comprises two kinds of fixed and handcart-types, and its scope of application is: 3 ~ 35KV electric power system of generating, power transformation and electricity consumption enterprise, alternative PT cabinet, special-purpose lightning arrester cabinet etc.The operation principle of system's overvoltage damping cabinet is following: the damping cabinet adopts autocratic combined type to break away from the spike absorber certainly big can the appearance; Can reduce the rising steepness of wave head effectively; Reduce frequency of oscillation; Adopt low dynamic electric resistor zinc oxide valve plate, can reduce the residual voltage value greatly, and the significant amount of energy that is produced can the absorption system overvoltage time; The cabinet of damping simultaneously adopts the single-phase vacuum contactor as intelligent switch; The PT neutral point is through intelligent instant shut-in ground connection; Eliminate when ferro resonance, single phase ground fault appear in system that three-phase voltage restores balance, during the intermittence arc grounding, intelligent earthed switch instantaneous operation effectively suppresses system's overvoltage; Significantly reduce the impact of capacitance current, cause the problem of PT scaling loss, fuse blows PT; When the damping cabinet normally moved, microcomputerized controller detected the voltage signal that PT provides in real time in the cabinet, in case PT broken string, overvoltage, low-voltage, decompression, resonance, ground connection are taken place in system; The voltage signal that microcomputerized controller provides according to PT; Device is the failure judgement situation quick and precisely, shows fault category, exports corresponding switching value contact point signal; The relevant apparatus action is also reported to the police; The damping cabinet has the RS485 interface, is furnished with the MODBUS communication protocol, realizes that with user's Computerized monitor system data transmit at a distance.
Subsequent to fixed and further introduction of two kinds of WZG systems of handcart-type overvoltage damping cabinet do.
Please consult Fig. 1 and Fig. 2 in the lump; The structural representation of the fixed WZG system overvoltage damping cabinet 100 that it provides for the utility model first execution mode, fixed WZG system overvoltage damping cabinet 100 comprise cabinet 40, brows 1, intelligent microcomputer device 2, phase voltage table 3, line voltmeter 4, line voltmeter change-over switch 5, wall bushing 6, once simulate board 7, copper nameplate 8, disconnecting link electromagnetic lock 9, auxiliary switch 10, switch operation mechanism 11, illuminating lamp 12, secondary chamber 13, quick release 14, spike surge absorber 15, high-tension fuse 16, antiresonance voltage transformer 17 and single-phase intelligent instant shut-in 18.
Brows 1 are arranged on the top of cabinet 40; Intelligence microcomputer device 2, phase voltage table 3, line voltmeter 4, line voltmeter change-over switch 5, once simulate the side that board 7, copper nameplate 8, disconnecting link electromagnetic lock 9 and illuminating lamp 12 are arranged on cabinet 40, wall bushing 6 is arranged on the opposite side of cabinet 40.Auxiliary switch 10, switch operation mechanism 11, secondary chamber 13, quick release 14, spike surge absorber 15, high-tension fuse 16, antiresonance voltage transformer 17 and single-phase intelligent instant shut-in 18 are arranged on the inside of cabinet 40.Intelligence microcomputer device 2, phase voltage table 3, line voltmeter 4, line voltmeter change-over switch 5, quick release 14, spike surge absorber 15, high-tension fuse 16, antiresonance voltage transformer 17 and single-phase intelligent instant shut-in 18 electrically connect.
Please consult Fig. 3 and Fig. 4 in the lump; The structural representation of the handcart-type WZG system overvoltage damping cabinet 200 that it provides for the utility model second execution mode, handcart-type WZG system overvoltage damping cabinet 200 comprise cabinet 50, brows 1, intelligent microcomputer device 2, phase voltage table 3, line voltmeter 4, line voltmeter change-over switch 5, wall bushing 6, once simulate board 7, copper nameplate 8, illuminating lamp 12, secondary chamber 13, quick release 14, spike surge absorber 15, high-tension fuse 16, antiresonance voltage transformer 17, single-phase intelligent instant shut-in 18 and isolate handcart 19.
Brows 1 are arranged on the top of cabinet 50; Intelligence microcomputer device 2, phase voltage table 3, line voltmeter 4, line voltmeter change-over switch 5, once simulate the side that board 7, copper nameplate 8 and illuminating lamp 12 are arranged on cabinet 50, wall bushing 6 is arranged on the opposite side of cabinet 50.Secondary chamber 13, quick release 14, spike surge absorber 15, high-tension fuse 16, antiresonance voltage transformer 17, single-phase intelligent instant shut-in 18 and isolation handcart 19 are arranged on the inside of cabinet 50.Intelligence microcomputer device 2, phase voltage table 3, line voltmeter 4, line voltmeter change-over switch 5, quick release 14, spike surge absorber 15, high-tension fuse 16, antiresonance voltage transformer 17 and single-phase intelligent instant shut-in 18 electrically connect.
Said WZG system overvoltage damping cabinet provides the overvoltage protection scheme of comprehensively comprehensive integral body, can design production according to the system parameters of the different demands of user; Eliminate the randomness abnormal overvoltage effectively; Absorb system's overvoltage of macro-energy; When system single-phase earth fault was eliminated, the impact charging current of restricted passage PT protected the fuse of PT not burnt effectively; Install quick release (FU) on the spike absorber additional, realize that really fault breaks away from fast.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (2)
1. system's overvoltage damping cabinet; It is characterized in that; It comprises cabinet, brows, intelligent microcomputer device, phase voltage table, line voltmeter, line voltmeter change-over switch, wall bushing, once simulates board, copper nameplate, illuminating lamp, secondary chamber, isolation handcart, quick release, spike surge absorber, high-tension fuse, antiresonance voltage transformer and single-phase intelligent instant shut-in; Said brows are arranged on the top of said cabinet; Said intelligent microcomputer device, said phase voltage table, said line voltmeter, said line voltmeter change-over switch, saidly once simulate the side that board, said copper nameplate and said illuminating lamp are arranged on said cabinet; Said wall bushing is arranged on the opposite side of said cabinet; Said secondary chamber, said isolation handcart, said quick release, said spike surge absorber, said high-tension fuse, said antiresonance voltage transformer and said single-phase intelligent instant shut-in are arranged on the inside of said cabinet, and said intelligent microcomputer device, said phase voltage table, said line voltmeter, said line voltmeter change-over switch, said quick release, said spike surge absorber, said high-tension fuse, said antiresonance voltage transformer and said single-phase intelligent instant shut-in electrically connect.
2. the system of claim 1 overvoltage damping cabinet; It is characterized in that; Said system overvoltage damping cabinet also comprises disconnecting link electromagnetic lock, auxiliary switch, switch operation mechanism; It is inner that said auxiliary switch and said switch operation mechanism are arranged on said cabinet, and said disconnecting link electromagnetic lock is arranged on a side of said cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203839886U CN202260436U (en) | 2011-10-11 | 2011-10-11 | System overvoltage damping cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203839886U CN202260436U (en) | 2011-10-11 | 2011-10-11 | System overvoltage damping cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260436U true CN202260436U (en) | 2012-05-30 |
Family
ID=46121621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203839886U Expired - Fee Related CN202260436U (en) | 2011-10-11 | 2011-10-11 | System overvoltage damping cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260436U (en) |
-
2011
- 2011-10-11 CN CN2011203839886U patent/CN202260436U/en not_active Expired - Fee Related
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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: 20120530 Termination date: 20141011 |
|
| EXPY | Termination of patent right or utility model |