CN203491673U - Transformer grounding protection device - Google Patents
Transformer grounding protection device Download PDFInfo
- Publication number
- CN203491673U CN203491673U CN201320643715.XU CN201320643715U CN203491673U CN 203491673 U CN203491673 U CN 203491673U CN 201320643715 U CN201320643715 U CN 201320643715U CN 203491673 U CN203491673 U CN 203491673U
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- China
- Prior art keywords
- transformer
- insulator
- protection device
- lightning arrester
- pedestal
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- Expired - Fee Related
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Abstract
The utility model relates to a transformer protection device, especially a transformer grounding protection device. The transformer grounding protection device includes a supporting rod, a connection sleeve, an adjustment sleeve, an adjustment handle, a connection board, a pedestal, an isolation switch, a lightning arrester, a current transformer, an insulator, and an interval ball, wherein the lower part of the supporting rod is fixed with the adjustment handle through the connection sleeve, the adjustment handle is connected with the isolation switch, the upper part of the supporting rod is provided with the connection board, the pedestal is fixed on the upper part of the connection board, the lightning arrester is fixed at one side of the pedestal, the current transformer is fixed on the other side of the pedestal, the insulator is arranged at the upper part of the current transformer, and the internal ball is disposed between the insulator and the lightening arrester. The transformer grounding protection device has beneficial effects of being high in discharging voltage accuracy, being small in dispersity, being stable in characteristics, being accurate, adequate and effective in insulation cooperation with characteristic of the lightening arrester and a main transformer, being large in heat capacity, being difficult to be burnt, being small in size, being convenience in installation and debug, and being high in reliability.
Description
Technical field
The utility model relates to a kind of protection equipment for transformer, particularly a kind of transformer grounding protective device.
Background technology
110kV, 220kV, 330kV are the main electric pressures of supply network; its neutral point generally adopts direct grounding way; due to relay protection setting configuration and prevent the requirement of the aspects such as communication interference; in order to limit single-phase short circuit current, wherein there is some transformers to adopt isolated neutral mode simultaneously.Under this operational mode, because thunderbolt, single-phase grounding fault etc. can cause neutral point overvoltage, and transformer is graded insulation mostly, so the insulation of overvoltage centering point causes very large threat, must protective device Accident prevention be set to it and occur.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, and a kind of transformer grounding protective device is provided.
Its technical scheme is: comprise support bar, adapter sleeve, regulating handle, connecting plate, base, isolating switch, lightning arrester, current transformer, insulator, gap ball, support bar bottom is by adapter sleeve secured adjusted handle, described regulating handle connects isolating switch, the top of support bar is provided with connecting plate, connecting plate top firm banking, one side of base is lightning arrester fixedly, the opposite side fixed current instrument transformer of base, current transformer top is provided with insulator, is provided with gap ball between insulator and lightning arrester.
The beneficial effects of the utility model are: discharge voltage accuracy rate is high, dispersed little, stability of characteristics, with the insulation coordination of lightning arrester characteristic and main transformer accurately, fully effective, thermal capacity is large, be difficult for scaling loss, volume is little, and Installation and Debugging are convenient, the feature that reliability is high.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
In upper figure: support bar 1, adapter sleeve 2, regulating handle 3, connecting plate 4, base 5, isolating switch 6, lightning arrester 7, current transformer 8, insulator 9, gap ball 10.
Embodiment
By reference to the accompanying drawings 1, the utility model will be further described:
The utility model comprises support bar 1, adapter sleeve 2, regulating handle 3, connecting plate 4, base 5, isolating switch 6, lightning arrester 7, current transformer 8, insulator 9, gap ball 10, support bar 1 bottom is by adapter sleeve 2 secured adjusted handles 3, described regulating handle 3 connects isolating switch 6, the top of support bar 1 is provided with connecting plate 4, connecting plate 4 top firm bankings 5, one side of base 5 is lightning arrester 7 fixedly, the opposite side fixed current instrument transformer 8 of base 5, current transformer 8 tops are provided with insulator 9, between insulator 9 and lightning arrester 7, are provided with gap ball 10.
High, dispersed little, the stability of characteristics of discharge voltage accuracy rate in the course of work, with the insulation coordination of lightning arrester characteristic and main transformer accurately, fully effective, thermal capacity is large, is difficult for scaling loss, volume is little, Installation and Debugging are convenient, the feature that reliability is high.
Claims (1)
1. a transformer grounding protective device, it is characterized in that: comprise support bar (1), adapter sleeve (2), regulating handle (3), connecting plate (4), base (5), isolating switch (6), lightning arrester (7), current transformer (8), insulator (9), gap ball (10), support bar (1) bottom is by adapter sleeve (2) secured adjusted handle (3), described regulating handle (3) connects isolating switch (6), the top of support bar (1) is provided with connecting plate (4), connecting plate (4) top firm banking (5), one side of base (5) is lightning arrester (7) fixedly, the opposite side fixed current instrument transformer (8) of base (5), current transformer (8) top is provided with insulator (9), between insulator (9) and lightning arrester (7), be provided with gap ball (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643715.XU CN203491673U (en) | 2013-10-18 | 2013-10-18 | Transformer grounding protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320643715.XU CN203491673U (en) | 2013-10-18 | 2013-10-18 | Transformer grounding protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491673U true CN203491673U (en) | 2014-03-19 |
Family
ID=50262475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320643715.XU Expired - Fee Related CN203491673U (en) | 2013-10-18 | 2013-10-18 | Transformer grounding protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203491673U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868446A (en) * | 2015-06-04 | 2015-08-26 | 四川电力设计咨询有限责任公司 | Simplified-type neutral point integrated equipment |
| CN111968824A (en) * | 2020-07-17 | 2020-11-20 | 湖南长高高压开关集团股份公司 | Transformer neutral point complete protection device |
-
2013
- 2013-10-18 CN CN201320643715.XU patent/CN203491673U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868446A (en) * | 2015-06-04 | 2015-08-26 | 四川电力设计咨询有限责任公司 | Simplified-type neutral point integrated equipment |
| CN111968824A (en) * | 2020-07-17 | 2020-11-20 | 湖南长高高压开关集团股份公司 | Transformer neutral point complete protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20141018 |
|
| EXPY | Termination of patent right or utility model |