CN101114758A - Mounting structure for isolating switch in medium voltage switch cabinet - Google Patents
Mounting structure for isolating switch in medium voltage switch cabinet Download PDFInfo
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- CN101114758A CN101114758A CNA2006100295342A CN200610029534A CN101114758A CN 101114758 A CN101114758 A CN 101114758A CN A2006100295342 A CNA2006100295342 A CN A2006100295342A CN 200610029534 A CN200610029534 A CN 200610029534A CN 101114758 A CN101114758 A CN 101114758A
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- cabinet
- switch
- isolating switch
- medium voltage
- mounting structure
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Abstract
The invention relates to an installation structure of an isolation switch in a medium voltage switch cabinet which comprises the isolation switch (20); the connection surface of the isolation switch (20) is parallel to the side surface of a cabinet body and an operating mechanism (21) of the isolation switch (20) is a rotary type; the invention has the beneficial effects that: the space of the medium voltage switch cabinet is effectively utilized; the isolation switch can be completely and normally arranged in the cabinet body and satisfactory application effect is obtained; furthermore, by adopting the method of lateral installation, the main connection of the isolation switch cabinet is kept in accordance with the main connection of a load switch cabinet, which is more suitable for the requirements of fabrication technology.
Description
Technical field
The present invention relates to a kind of Medium Voltage Switchgear (HXGN15-12 series), relate in particular to the mounting structure of isolating switch in this Medium Voltage Switchgear.
Background technology
HXGN15-12 series Medium Voltage Switchgear is mainly used in three-phase alternating current 50HZ, and the ring network power supply of the electric power system of rated voltage 10KV or biradial power supply also can be used for the terminal power supply as the control of electric energy and the protective device of power consumption equipment.Simultaneously, because its overall dimensions are less relatively, in the compact box-type substation that is particularly suitable for packing into.
This type switch cubicle basic module adopts the imported with original packaging SFL of ABB AB, SFG type sulphur hexafloride circuit breaker, because key components price comparison height makes this type switch cubicle application in the popularization process be subjected to certain limitation; Secondly, in scheme combination, the basic assembled scheme that adopts based on on-load switch, assembled scheme is complete inadequately, and brings unnecessary cost to rise.
As seen from Figure 1: the voltage transformer operating current is very little in the G5-PT cabinet, and only 0.5 ampere of major loop protection fuse all adopts the sulphur hexafluoride on-load switch in this cabinet standard scheme, and cost performance is unreasonable;
In the total cabinet of G3-, VD4 type vacuum circuit-breaker and SFG switch combination, the two all can cut-off load current and rated short circuit current, and repetition seems in the use.
On-load switch in G1-first incoming line cabinet, G2-second incoming line cabinet seldom uses at ordinary times, only uses when power supply switches.
The G4-metering cabinet, the G6-first feeder line cabinet, the G7-second feeder line cabinet.
Among the figure: SFG12 is the negative He switch of 12KV sulphur hexafluoride, GSN-10 is a high-voltage charge display device, HY5WS-17/50 is a high-voltage arrester, LZZJ9-10 is a current transformer, VD4-S is a vacuum circuit-breaker, JDZ-10 is a voltage transformer, and RN2-10/0.5A is the indoor high-voltage fuse, and SFLAJ-12 is the high breaking high-tension fuse.
On prior art, GN30 type isolating switch price is relatively low, be rated voltage 10KV, the inside plant of three-phase alternating current 50HZ, itself does not have arc-control device isolating switch, can not cut-off load current and short circuit current, but it can cut-off little electric current, it has the ability that the ability of bearing short circuit current reaches folding bus transfer current under low recovery voltage in addition.
As seen from Figure 3: generally GN30 type isolating switch 10 being installed in the switch cubicle is the front mounting means, and just switch wiring face is parallel with the cabinet front, and operating mechanism is a lever 11.This mounting means requires switch cubicle to have bigger overall dimensions.
How GN30 type isolating switch is installed in the less Medium Voltage Switchgear of overall dimensions (HXGN15-12), makes this cabinet reach on the same function basis problem that the more cheap engineers and technicians of being of price need solve.
Summary of the invention
The technical issues that need to address of the present invention have provided the mounting structure of isolating switch in a kind of Medium Voltage Switchgear, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: isolating switch; Described isolating switch wiring face and cabinet parallel sided; The operating mechanism of isolating switch is revolving.
Compared with prior art, the invention has the beneficial effects as follows: the Medium Voltage Switchgear space has obtained effective utilization, not only isolating switch fully can normal mounting in cabinet and obtain satisfied result of use, and owing to adopted side dress mode, make the main electrical scheme of isolating switch cabinet keep consistent, be more suitable for the requirement of manufacture craft with the main electrical scheme of loading switch cabinet.
Description of drawings
Fig. 1 is that Medium Voltage Switchgear adopts the import SFL of ABB AB, SFG type sulphur hexafloride circuit breaker module map in the prior art;
Fig. 2 is that the present invention adopts GN30 type isolating switch module map;
Fig. 3 is prior art isolating switch mounting structure figure;
Fig. 4 A is the present invention isolating switch mounting structure figure in the cabinet front view that compresses switch;
Fig. 4 B is the present invention isolating switch mounting structure figure in the cabinet left view that compresses switch;
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
By Fig. 4 A, Fig. 4 B as seen: the present invention includes: isolating switch 20; Described isolating switch 20 wiring faces and cabinet parallel sided; The operating mechanism 21 of isolating switch 20 is revolving;
Described operating mechanism 21 is placed in the positive inboard of cabinet.
As seen from Figure 2: G1-first incoming line cabinet, G2-second incoming line cabinet, the total cabinet of G3-, G5-PT cabinet were SFG type on-load switch originally, now were GN30 type isolating switch.Because the isolating switch price is relatively low, makes that the whole proposal price advantage is fairly obvious, also makes the assembled scheme of HXGN15-12 cabinet more flexible, convenient, this cabinet type applicable surface is more extensive.The G4-metering cabinet, the G6-first feeder line cabinet, the G7-second feeder line cabinet.
Claims (2)
1. the mounting structure of isolating switch in the Medium Voltage Switchgear comprises: isolating switch (20); It is characterized in that: described isolating switch (20) wiring face and cabinet parallel sided; The operating mechanism (21) of isolating switch (20) is revolving.
2. the mounting structure of isolating switch in the Medium Voltage Switchgear according to claim 1 is characterized in that: described operating mechanism (21) is placed in the positive inboard of cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100295342A CN101114758A (en) | 2006-07-28 | 2006-07-28 | Mounting structure for isolating switch in medium voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100295342A CN101114758A (en) | 2006-07-28 | 2006-07-28 | Mounting structure for isolating switch in medium voltage switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101114758A true CN101114758A (en) | 2008-01-30 |
Family
ID=39022937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100295342A Pending CN101114758A (en) | 2006-07-28 | 2006-07-28 | Mounting structure for isolating switch in medium voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101114758A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972794A (en) * | 2014-05-27 | 2014-08-06 | 国网上海市电力公司 | Metering device installation framework of 10kV power distribution cabinet |
-
2006
- 2006-07-28 CN CNA2006100295342A patent/CN101114758A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103972794A (en) * | 2014-05-27 | 2014-08-06 | 国网上海市电力公司 | Metering device installation framework of 10kV power distribution cabinet |
| CN103972794B (en) * | 2014-05-27 | 2017-03-01 | 国网上海市电力公司 | The metering device attaching framework of 10kV power distribution cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080130 |