CN205389099U - Transformer neutral point clearance ground protecting device - Google Patents
Transformer neutral point clearance ground protecting device Download PDFInfo
- Publication number
- CN205389099U CN205389099U CN201620017040.1U CN201620017040U CN205389099U CN 205389099 U CN205389099 U CN 205389099U CN 201620017040 U CN201620017040 U CN 201620017040U CN 205389099 U CN205389099 U CN 205389099U
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- Prior art keywords
- neutral point
- base
- equipment pillar
- fixed
- oxide arrester
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Abstract
The utility model discloses a transformer neutral point clearance ground protecting device, including neutral point switch, zinc oxide arrester, current transformer, discharge gap, electric operating mechanism, base, neutral point lead terminal, equipment pillar, counter and ground plate, the neutral point switch rotates with the upper end of voltage protection ware to be connected, and the left side at the base is fixed to the voltage protection ware, zinc oxide arrester fixes the middle tail position at the base, current transformer fixes the right side at the base, discharge gap is between zinc oxide arrester and current transformer, electric operating mechanism fixes in the below of equipment pillar, and bolt and base fixed connection are passed through to the top of equipment pillar, the ground plate sets up on the lower extreme side of equipment pillar, the counter is fixed on the upper end side of equipment pillar, the utility model has the characteristics of the function is complete, small, the reliability is high, the installation and debugging etc. Of being convenient for, easy operation easily uses widely.
Description
Technical field
This utility model relates to voltage protection applied technical field, especially a kind of transformer neutral point gap earth protective device.
Background technology
110kV, 220kV are the mains voltage grades of supply network; owing to voltage is significantly high; neutral point is generally adopted direct grounding way; due to relay protection setting configuration and the requirement preventing the aspects such as communication interference; in order to limit single-phase short circuit current, some transformers is wherein had to adopt isolated neutral mode.Under this method of operation, causing neutral point overvoltage due to thunderbolt, single-phase grounding fault etc., and transformator is graded insulation mostly, therefore the insulation of overvoltage centering point causes very big threat, it is necessary to it is arranged protection device Accident prevention and occurs；Existing protection device gap discharge spread of voltage, clearance distance is not easy to adjust, and there is potential safety hazard, at the bottom of work efficiency.
Utility model content
Prior art is difficult to meet the needs of people, in order to solve above-mentioned Problems existing, the utility model proposes a kind of transformer neutral point gap earth protective device.
A kind of transformer neutral point gap earth protective device, including neutral point switch, Zinc-Oxide Arrester, current transformer, discharging gap, motor-operating mechanism, base, neutral point lead terminal, equipment pillar, enumerator and earth plate；The upper end of described neutral point switch and voltage protector is rotationally connected, and voltage protector is fixed on the left side of base；Described Zinc-Oxide Arrester is fixed on the middle tail position of base；Described current transformer is fixed on the right side of base；Described discharging gap is between Zinc-Oxide Arrester and current transformer；Described motor-operating mechanism is fixed on the lower section of equipment pillar, and the top of equipment pillar is connected by bolt and base are fixing；Described earth plate is arranged in the lower end side of equipment pillar；Described enumerator is fixed in the upper side of equipment pillar.
Further, described neutral point lead terminal is connected by wire with Zinc-Oxide Arrester, and neutral point lead terminal adopts copper material to make.
Further, described equipment pillar adopts seamless steel pipe.
Compared with prior art; this utility model has the advantages that this transformer neutral point gap protection device is the complete set of equipments that the collection isolation electrical equipment such as switch, Zinc-Oxide Arrester, discharging gap summation current transformer is combined into one, and has that function is complete, volume is little, reliability is high, be easily installed the features such as debugging；Gap discharge voltage stabilization, clearance distance is prone to adjust；Use high-strength stainless steel polish electrode；Gap floor installation suspension ring, one integral piece transporting and hoisting, in-site installation is efficient and convenient.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model；
Fig. 2 is the structural representation that neutral point switch of the present utility model disconnects；
Fig. 3 is top view of the present utility model；
Fig. 4 is principle wiring schematic diagram of the present utility model；
In accompanying drawing labelling: 1-neutral point switch, 2-Zinc-Oxide Arrester, 3-current transformer, 4-discharging gap, 5-motor-operating mechanism, 6-base, 7-neutral point lead terminal, 8-equipment pillar, 9-enumerator, 10-earth plate.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Figure of description 1-4; in this utility model embodiment; a kind of transformer neutral point gap earth protective device, including neutral point switch 1, Zinc-Oxide Arrester 2, current transformer 3, discharging gap 4, motor-operating mechanism 5, base 6, neutral point lead terminal 7, equipment pillar 8, enumerator 9 and earth plate 10；The upper end of described neutral point switch 1 and voltage protector is rotationally connected, and voltage protector is fixed on the left side of base 6；Described Zinc-Oxide Arrester 2 is fixed on the middle tail position of base 6；Described current transformer 3 is fixed on the right side of base 6；Described discharging gap 4 is between Zinc-Oxide Arrester 2 and current transformer 3；Described motor-operating mechanism 5 is fixed on the lower section of equipment pillar 8, and the top of equipment pillar 8 is connected by bolt is fixing with base 6；Described earth plate 10 is arranged in the lower end side of equipment pillar 8；Described enumerator 9 is fixed in the upper side of equipment pillar 8；Described neutral point lead terminal 7 is connected by wire with Zinc-Oxide Arrester 2, and neutral point lead terminal 7 adopts copper material to make；Described equipment pillar 8 adopts seamless steel pipe.
As the optimisation technique scheme that this use is novel: transformer neutral point discharging gap 4 protects device to have rod gap and two kinds of spherical gap form；Zinc-Oxide Arrester 2 and neutral point switch 1 can be matched according to requirement of engineering combination in any.The operating mechanism of neutral point switch 1 can select to use manually or electrically mechanism by engine request.
The above; it is only preferred embodiment of the present utility model; not in order to limit this utility model, every any trickle amendment, equivalent replacement and improvement above example made according to technical spirit of the present utility model, should be included within the protection domain of technical solutions of the utility model.
Claims (3)
1. a transformer neutral point gap earth protective device, including neutral point switch (1), Zinc-Oxide Arrester (2), current transformer (3), discharging gap (4), motor-operating mechanism (5), base (6), neutral point lead terminal (7), equipment pillar (8), enumerator (9) and earth plate (10)；It is characterized in that: the upper end of described neutral point switch (1) and voltage protector is rotationally connected, and voltage protector is fixed on the left side of base (6)；Described Zinc-Oxide Arrester (2) is fixed on the middle tail position of base (6)；Described current transformer (3) is fixed on the right side of base (6)；Described discharging gap (4) is between Zinc-Oxide Arrester (2) and current transformer (3)；Described motor-operating mechanism (5) is fixed on the lower section of equipment pillar (8), and the top of equipment pillar (8) is connected by bolt and base (6) are fixing；Described earth plate (10) is arranged in the lower end side of equipment pillar (8)；Described enumerator (9) is fixed in the upper side of equipment pillar (8).
2. a kind of transformer neutral point gap earth protective device according to claim 1; it is characterized in that: described neutral point lead terminal (7) is connected by wire with Zinc-Oxide Arrester (2), neutral point lead terminal (7) adopts copper material to make.
3. a kind of transformer neutral point gap earth protective device according to claim 1, is characterized in that: described equipment pillar (8) adopts seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017040.1U CN205389099U (en) | 2016-01-08 | 2016-01-08 | Transformer neutral point clearance ground protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017040.1U CN205389099U (en) | 2016-01-08 | 2016-01-08 | Transformer neutral point clearance ground protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205389099U true CN205389099U (en) | 2016-07-20 |
Family
ID=56383163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620017040.1U Expired - Fee Related CN205389099U (en) | 2016-01-08 | 2016-01-08 | Transformer neutral point clearance ground protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205389099U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021052053A1 (en) | 2019-09-18 | 2021-03-25 | 国网浙江省电力有限公司经济技术研究院 | Gas-insulated metal enclosed neutral point complete-set device |
-
2016
- 2016-01-08 CN CN201620017040.1U patent/CN205389099U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021052053A1 (en) | 2019-09-18 | 2021-03-25 | 国网浙江省电力有限公司经济技术研究院 | Gas-insulated metal enclosed neutral point complete-set device |
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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: 20160720 Termination date: 20210108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |