CN203415970U - HCZX arc-extinguishing and harmonic-eliminating line selection integrated apparatus - Google Patents
HCZX arc-extinguishing and harmonic-eliminating line selection integrated apparatus Download PDFInfo
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- CN203415970U CN203415970U CN201320385123.2U CN201320385123U CN203415970U CN 203415970 U CN203415970 U CN 203415970U CN 201320385123 U CN201320385123 U CN 201320385123U CN 203415970 U CN203415970 U CN 203415970U
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Abstract
The utility model discloses an HCZX arc-extinguishing and harmonic-eliminating line selection integrated apparatus. The apparatus comprises a high-voltage isolation switch and is characterized in that the high-voltage isolation switch is connected with a bus; the current of the bus is introduced to two groups of high-voltage current limiting fuses and a group of voltage limiting devices through the high-voltage isolation switch; a left side high-voltage current limiting fuse is connected with a voltage transformer; a left side high-voltage current limiting fuse is connected with three groups of high-voltage vacuum contactors; and the voltage transformer and the three groups of high-voltage vacuum contactors are respectively connected with a controller. By using the apparatus provided by the utility model, various over voltages in an electric network are limited so that the safe operation of the electric network, the reliable power supply and electric power quality can be improved, and at the same time, the apparatus is provided with arc-extinguishing, harmonic-eliminating and line selection functions and can replace a PT cabinet.
Description
Technical field
The utility model relates to a kind of integration unit, is specifically related to a kind of HCZX arc and resonance elimination comprehensive device.
Background technology
Along with social development, the safe operation of electric power system and the reliability of power supply have seemed more and more important.For a long time, the power distribution network of China 3 ~ 35kV adopts isolated neutral operational mode mostly.This operational mode allows the short time to operate with failure when single-phase earthing, thereby has greatly improved the power supply reliability of system.
Generally, in the power distribution network of 3～35kV of isolated neutral, except lightning overvoltage, the overvoltage being caused by single-phase intermittent arc earthing is the most frequent, and has higher amplitude and longer duration.Along with the expansion of system scale and increasing of cable outlet, the capacitive earth current of system also can increase.The electric current of fault point of flowing through after single-phase earthing is larger, electric arc is difficult for extinguishing, consequent arc overvoltage and resonance overvoltage will reach the more than 3.5 times of normal value, insulating properties to electric equipment causes cumulative damage, in electric insulation weak spot, cause and puncture over the ground or alternate flashover, cause phase fault accident, cause zero-clearance zinc oxide lightning arrester blast etc.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of the various overvoltage that occur in electrical network is limited, can improve the fail safe of operation of power networks, the reliability of power supply and the quality of power supply, there is a kind of HCZX arc and resonance elimination comprehensive device of the function of extinguishing arc, harmonic elimination, route selection and replacement PT cabinet simultaneously.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of HCZX arc and resonance elimination comprehensive device, this device comprises high voltage isolator, it is characterized in that: described high voltage isolator access bus, and the electric current of bus is introduced in two groups of high-voltage and current-limitation fuses and one group of voltage limiter by high voltage isolator, wherein the high-voltage and current-limitation fuse in left side is connected with voltage transformer, the high-voltage and current-limitation fuse on right side is connected with three groups of high-pressure vacuum contactors, and described voltage transformer is connected with controller respectively with three groups of high-pressure vacuum contactors.
The beneficial effects of the utility model are: the various overvoltage that occur in electrical network are limited, can improve the fail safe of operation of power networks, the reliability of power supply and the quality of power supply, have the function of extinguishing arc, harmonic elimination, route selection and replacement PT cabinet simultaneously.
Accompanying drawing explanation
Fig. 1 is the utility model system configuration schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of HCZX arc and resonance elimination comprehensive device, this device comprises high voltage isolator 1, high voltage isolator 1 access bus, and the electric current of bus is introduced in two groups of high-voltage and current-limitation fuses 2 and one group of voltage limiter 4 by high voltage isolator 1, wherein the high-voltage and current-limitation fuse 2 in left side is connected with voltage transformer 3, and the high-voltage and current-limitation fuse 2 on right side is connected with three groups of high-pressure vacuum contactors 5, and voltage transformer 3 is connected with controller 6 respectively with three groups of high-pressure vacuum contactors 5.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. a HCZX arc and resonance elimination comprehensive device, this device comprises high voltage isolator, described high voltage isolator access bus, it is characterized in that: and the electric current of bus is introduced in two groups of high-voltage and current-limitation fuses and one group of voltage limiter by high voltage isolator, wherein the high-voltage and current-limitation fuse in left side is connected with voltage transformer, the high-voltage and current-limitation fuse on right side is connected with three groups of high-pressure vacuum contactors, and described voltage transformer is connected with controller respectively with three groups of high-pressure vacuum contactors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320385123.2U CN203415970U (en) | 2013-07-01 | 2013-07-01 | HCZX arc-extinguishing and harmonic-eliminating line selection integrated apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320385123.2U CN203415970U (en) | 2013-07-01 | 2013-07-01 | HCZX arc-extinguishing and harmonic-eliminating line selection integrated apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415970U true CN203415970U (en) | 2014-01-29 |
Family
ID=49978829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320385123.2U Expired - Fee Related CN203415970U (en) | 2013-07-01 | 2013-07-01 | HCZX arc-extinguishing and harmonic-eliminating line selection integrated apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415970U (en) |
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2013
- 2013-07-01 CN CN201320385123.2U patent/CN203415970U/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: 20140129 Termination date: 20170701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |