CN205846845U - 10kV switch cubicle provides operation power supply and external operation automatic power-supply switch for oneself - Google Patents
10kV switch cubicle provides operation power supply and external operation automatic power-supply switch for oneself Download PDFInfo
- Publication number
- CN205846845U CN205846845U CN201620415266.7U CN201620415266U CN205846845U CN 205846845 U CN205846845 U CN 205846845U CN 201620415266 U CN201620415266 U CN 201620415266U CN 205846845 U CN205846845 U CN 205846845U
- Authority
- CN
- China
- Prior art keywords
- power supply
- switch cubicle
- switch
- oneself
- auxiliary reclay
- 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.)
- Expired - Fee Related
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Abstract
This utility model relates to 10kV switch cubicle and provides operation power supply and external operation automatic power-supply switch for oneself, including voltage transformer, miniature circuit breaker, auxiliary reclay;Wherein, voltage transformer is arranged on the electric power incoming line side of 10kV switch cubicle, accessing biphase 10kV power supplys by two high-tension fuses, the low-side power of voltage transformer is connected with the normally-closed contact of auxiliary reclay after being controlled by miniature circuit breaker, provides operation power supply for oneself as switch cubicle;Wherein, the coil of auxiliary reclay and normally opened contact are in parallel, and after parallel connection, auxiliary reclay is connected, as external operation power supply with the power supply of station electricity consumption or low-tension switch cabinet.This utility model ensure that the normal work that switch cubicle is steady in a long-term, meets the capacity load power supply needs of switch cubicle secondary line each side.
Description
Technical field
This utility model relates to a kind of 10kV switch cubicle secondary line and controls field of power supplies, for by 10kV switch cubicle from
Standby operation power supply and external operation power supply automatically switch mutually.
Background technology
At present, the 10kV switch cubicle operation power supply on market is broadly divided into two kinds, a kind of electricity carried by 10kV switch cubicle
Pressure transformer provides independent secondary line operation power supply;Another kind is provided by the direct current cabinet in addition to switch cubicle or uninterrupted power source
Secondary line operation power supply.
In the operation power supply supply mode of above two pattern, the first is held quantitative limitation by voltage transformer, it is impossible to long
Phase undertakes the load of larger capacity, such as the humid control etc. in switch cubicle;The second needs other configuring direct current screen or uninterruptedly electric
Source so that investment increases, and maintenance workload increases.
Utility model content
Technical problem to be solved in the utility model is to provide for a kind of ensure that steady in a long-term normal of switch cubicle
Work, meets the automatic power-supply switch of the capacity load power supply needs of switch cubicle secondary line each side.
The technical scheme realizing above-mentioned purpose is as follows:
10kV switch cubicle provides operation power supply and external operation automatic power-supply switch for oneself, it is characterised in that: include voltage
Transformer, miniature circuit breaker, auxiliary reclay;
Wherein, voltage transformer is arranged on the electric power incoming line side of 10kV switch cubicle, accesses two by two high-tension fuses
Phase 10kV power supply, the low-side power of voltage transformer controlled by miniature circuit breaker after with the normally-closed contact of auxiliary reclay even
Connect, provide operation power supply for oneself as switch cubicle;
Wherein, the coil of auxiliary reclay and normally opened contact are in parallel, and auxiliary reclay and station electricity consumption or low after parallel connection
Compress switch cabinet power supply connect, as external operation power supply.
Preferably, high-tension fuse is 10kV fuse.
This utility model ensure that the normal work that switch cubicle is steady in a long-term, meets switch cubicle secondary line each side
Capacity load power supply needs.
Accompanying drawing explanation
Fig. 1 is this utility model schematic diagram
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described in detail.
In figure, operation power supply provided for oneself by 10kV switch cubicle and external operation automatic power-supply switch includes one 10/
0.22kV voltage transformer, two high-tension fuses, a miniature circuit breaker and an auxiliary reclay.
Voltage transformer is arranged on the electric power incoming line side of 10kV switch cubicle, accesses biphase 10kV by two high-tension fuses
Power supply, the low-side power of voltage transformer controls to be followed by the normally-closed contact of auxiliary reclay by miniature circuit breaker, as
Switch cubicle provide operation power supply for oneself;Introduce station electricity consumption or low-tension switch cabinet after the coil of auxiliary reclay and normally opened contact parallel connection
Power supply, as external operation power supply.
Operation principle of the present utility model: after 10kV power supply insertion switch cabinet, by switching circuit rate of the present utility model
First provide the secondary operation power supply (i.e. providing operation power supply for oneself) provided for oneself for switch cubicle, now switch cubicle all can utilize this power supply to carry out
The breaking-closing operating of switch, after load below is connected, station electricity consumption or low-tension switch cabinet the external operation power supply provided is i.e.
This device can be passed through, utilize the operation principle of auxiliary reclay, hereafter can preferentially use external operation power supply, and disconnect switch cubicle
Provide operation power supply for oneself, the normal work steady in a long-term to ensure switch cubicle, meet the capacity of switch cubicle secondary line each side
Load power source needs.
The voltage transformer that in this utility model, voltage transformer TV can use model to be JDZ-10 10/0.22kV, pole
Limit output capacity is 500VA, certainly also can be selected for other electric pressures according to reality.And fuse can select 10kV high-voltage fuse
Disconnected device FUa~b, model is XRNP-10 0.5A.
These are only the preferred embodiment of this utility model embodiment, not in order to limit this utility model enforcement
Example, within all spirit in this utility model embodiment and principle, any modification, equivalent substitution and improvement etc. made, all should wrap
It is contained in the protection domain of this utility model embodiment.
Claims (2)
1.10kV switch cubicle provides operation power supply and external operation automatic power-supply switch for oneself, it is characterised in that: include that voltage is mutual
Sensor, miniature circuit breaker, auxiliary reclay;
Wherein, voltage transformer is arranged on the electric power incoming line side of 10kV switch cubicle, accesses biphase by two high-tension fuses
10kV power supply, the low-side power of voltage transformer controlled by miniature circuit breaker after with the normally-closed contact of auxiliary reclay even
Connect, provide operation power supply for oneself as switch cubicle;
Wherein, the coil of auxiliary reclay and normally opened contact are in parallel, and after parallel connection auxiliary reclay with stand electricity consumption or low press off
The power supply closing cabinet connects, as external operation power supply.
10kV switch cubicle the most according to claim 1 provides operation power supply and external operation automatic power-supply switch for oneself, its
It is characterised by: high-tension fuse is 10kV fuse.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620415266.7U CN205846845U (en) | 2016-05-10 | 2016-05-10 | 10kV switch cubicle provides operation power supply and external operation automatic power-supply switch for oneself |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201620415266.7U CN205846845U (en) | 2016-05-10 | 2016-05-10 | 10kV switch cubicle provides operation power supply and external operation automatic power-supply switch for oneself |
Publications (1)
Publication Number | Publication Date |
---|---|
CN205846845U true CN205846845U (en) | 2016-12-28 |
Family
ID=57628831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201620415266.7U Expired - Fee Related CN205846845U (en) | 2016-05-10 | 2016-05-10 | 10kV switch cubicle provides operation power supply and external operation automatic power-supply switch for oneself |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN205846845U (en) |
-
2016
- 2016-05-10 CN CN201620415266.7U patent/CN205846845U/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 | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20190510 |