CN202094037U - On-load switchingin or switchingoff prevention isolating switch for box substation - Google Patents
On-load switchingin or switchingoff prevention isolating switch for box substation Download PDFInfo
- Publication number
- CN202094037U CN202094037U CN2011201886793U CN201120188679U CN202094037U CN 202094037 U CN202094037 U CN 202094037U CN 2011201886793 U CN2011201886793 U CN 2011201886793U CN 201120188679 U CN201120188679 U CN 201120188679U CN 202094037 U CN202094037 U CN 202094037U
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- switch
- load
- isolating switch
- high voltage
- isolating
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Abstract
The utility model provides an on-load switchingin or switchingoff prevention isolating switch for a box substation, belonging to the technical field of power equipment. The on-load switchingin or switchingoff prevention isolating switch is mainly characterized in that a high voltage isolating switch is used as an incoming line switch for a power supply; a high voltage circuit breaker or a high voltage load switch is used as an outgoing line switch for the power supply; and the isolating switch is in side-mounting type, which can be a pulley type position switch or a mandrel type position switch or a combined switch of the pulley type position switch and the mandrel type position switch. The utility model achieves the functions of the on-load switchingin or switchingoff prevention isolating switch, so that the on-load switchingin or switchingoff prevention isolating switch has the advantages of being safe and reliable and being simple to manufacture and easy to use.
Description
Technical field
The utility model belongs to electrical equipment technical field, relates to a kind of case and becomes with preventing on-load deciliter isolating switch.
Background technology
High voltage isolator has tangible overlap span, and it is mainly used to the isolated high-voltage power supply, guarantee safety inspection, but it does not have special arc-control device, does not therefore allow to cut off normal load power, more can not be used for cutting-off of short-circuit electric current.Therefore it is used with circuit breaker usually, in use must observe " five prevent " requirement: prevent on-load deciliter isolating switch.Therefore when disconnecting switch operation, must be noted that operating sequence: promptly when sending electricity, close the mains side isolating switch earlier, close the load side circuit breaker again; During power failure, divide the load side circuit breaker earlier, again independent power source side isolating switch.
There is the high voltage isolator of obvious cut-off point in the producer that produces box-type substation at present as the electric power incoming line switch for adopting in the design, the high voltage supply scheme of primary cut-out or high voltage load switch is adopted in outlet, because of box-type substation high-voltage board type volume ratio less, generally both do not install in same cabinet, so latch-up problem between the two is more thorny.If box sizes is well-to-do, inlet wire is isolated can adopt the formal dress pattern, utilizes operating mechanism to install and realizes Mechanically programm's locking between the control switch of mechanical procedure lock and circuit breaker or on-load switch, to reach the purpose of " preventing on-load deciliter isolating switch ".But if box sizes restriction, inlet wire is isolated can adopt the side-mounting formula, the isolating switch of side-mounting in the market, operating mechanism is the T type plug-in type sleeve pipe of an activity, can't utilize operating mechanism and primary cut-out or high voltage load switch to realize Mechanically programm's locking like this.If an auxiliary switch is installed near isolating switch by complete cabinet, need to make a small rod, link to each other with the main shaft of isolating switch body, utilize auxiliary switch contact to realize electric blocking, this traditional method makes, installs, and regulate all cumbersome, use also underaction, and do not adopt the method to solve latch-up problem in the market.Simply stick caution so some case becomes producer on the panel of isolating switch cabinet: " rigorous on-load disconnecting switch operation " gets over! Misoperation can take place but still keep away unavoidably.
Produce the high voltage isolator producer of side-mounting in the market, all do not have and consider how the user installs and uses the problem of locking, though some producer that produces primary cut-out considers locking, also just on its equipment mechanism, increased a wirerope, purpose also can only realize two interlockings between the adjacent circuit breaker, and but can't realize the wirerope interlocking between the isolating switch.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of safe and reliable, make simple, wield case and become with preventing on-load deciliter isolating switch, adopt this method, can realize the function of " preventing on-load deciliter isolating switch ".
For solving the problems of the technologies described above, technical solution adopted in the utility model is that this case becomes with preventing that on-load deciliter isolating switch from adopting high voltage isolator as the electric power incoming line switch, primary cut-out or high voltage load switch are adopted in outlet, and isolating switch is the side-mounting formula.
Adopt pulley-type position travel switch, it is installed near the isolating switch body main shaft the mounting rail, the suitable push rod of welding on the suitable position of main shaft, and the push rod shape can be determined according to regulating the main shaft angle.
Adopt post rod type position travel switch, it is installed on isolator operation panel inboard, and near near the isolating switch panel operation jack, and push rod one side of travel switch can be answered back in T jacket tube operating grip inserting side and when making it to insert.
Switch is installed on the position contact of the pulley-type position travel switch near the installation support of isolating switch body main shaft, is connected in circuit breaker or the on-load switch closing circuit; Or switch is installed on the contact of isolator operation panel medial roof rod-type position travel switch, is connected in circuit breaker or the on-load switch sub-gate circuit.
The utility model adopts the beneficial effect that technique scheme produced to be:
⑴. realized the function of " preventing on-load deciliter isolating switch ";
⑵. installation and maintenance are convenient, regulate easily, and sensitivity is also very high;
⑶. safe and reliable, economic and practical;
⑷. structural member making and welding procedure are simpler.
Description of drawings
Fig. 1 represents the structure scheme of installation of the utility model first embodiment;
Fig. 2 represents the electrical schematic diagram of the utility model first embodiment;
Fig. 3 represents the structure scheme of installation of the utility model second embodiment;
Fig. 4 represents the electrical schematic diagram of the utility model second embodiment;
Fig. 5 represents the electrical schematic diagram of the utility model the 3rd embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model case is become with preventing that the on-load deciliter isolating switch from specifying.
The utility model case becomes with preventing that on-load deciliter isolating switch from adopting high voltage isolator as the electric power incoming line switch, and primary cut-out or high voltage load switch are adopted in outlet, and isolating switch is the side-mounting formula.
Embodiment one of the present utility model, referring to Fig. 1, Fig. 2, adopt pulley-type position travel switch 1, be installed near the mounting rail 5 the isolating switch body main shaft 3, the suitable push rod 2 of welding on the suitable position of main shaft or main shaft triangle connecting plate 4, the push rod shape can be determined according to regulating the main shaft angle.When the operator divides or close isolating switch, as long as the main shaft turn a little of isolating switch, be that the isolated switch main contact is in when being about to action or also not action (divide or close), main shaft drives the pulley of the push rod roof pressure travel switch of welding, make it contact XK action, go to connect the divide-shut brake loop of circuit breaker or on-load switch, before the isolating switch action, divide circuit breaker or on-load switch when realizing having a power failure earlier, or when sending electricity, prevent to close earlier circuit breaker or on-load switch, just realized the function of " preventing on-load deciliter isolating switch " down at machinery and electric the associating like this.
Embodiment two of the present utility model, referring to Fig. 3, Fig. 4 adopts post rod type position travel switch 1, is installed on isolator operation panel 2 inboards, and near near the isolating switch panel operation jack, with push rod 3,4 one sides of travel switch in
TJacket tube operating grip 5 inserting sides also can be answered back to when making it to insert.
Having a power failure when operation: leaves (misoperation) when closing when the operator desires to separate earlier, can insert operating sleeve in the operating surface plate hole earlier, during insertion, operating sleeve can be answered back to the position travel switch behind the panel, make it contact XK action, utilize the contact of position switch to remove to connect the sub-gate circuit of circuit breaker or on-load switch, make its when also not beginning the disjunction isolating switch just with the separating brake of circuit breaker or on-load switch, so just realized the function of " prevent mistake from dividing keep apart the pass ".
When sending the electricity operation: when the operator desires to carry out make and break road device or on-load switch earlier (misoperation), because the contact of position switch is action earlier not, the closing circuit of circuit breaker or on-load switch then is in off state and can not closes a floodgate, so must close isolating switch earlier, in the time of in operating sleeve inserts the operating surface plate hole, the contact of position switch is connected, attention is after isolating switch is closed in affirmation, operating sleeve is not taken out from panel earlier, after circuit breaker or on-load switch close, take out operating sleeve again.So just realized the function of " preventing from by mistake to close isolating switch ".
Embodiment three of the present utility model, referring to Fig. 5, present embodiment is the combination of embodiment one and embodiment two: promptly utilize the position contact 1XK that is installed on the pulley-type position travel switch near the installation support of isolating switch body main shaft, be connected in circuit breaker or the on-load switch closing circuit; Utilization is installed on the contact 2XK of isolator operation panel medial roof rod-type position travel switch, is connected in circuit breaker or the on-load switch sub-gate circuit.In like this can avoiding method two when closing operation, " must be noted that behind the isolating switch of confirming to close, operating sleeve do not taken out from panel earlier, after circuit breaker or on-load switch close, take out operating sleeve again ".
More than among three embodiment, if the contact rating of position switch is not enough, can also utilize the relay conversion to realize the chain of a plurality of equipment, like this at machinery with realized the function of " preventing on-load deciliter isolating switch " under electric the associating reliably.
Claims (3)
1. a case becomes with preventing on-load deciliter isolating switch, adopt high voltage isolator as the electric power incoming line switch, primary cut-out or high voltage load switch are adopted in outlet, isolating switch is the side-mounting formula, it is characterized in that: adopt pulley-type position travel switch, it is installed near the isolating switch body main shaft the mounting rail, the suitable push rod of welding on the suitable position of main shaft, and the push rod shape can be determined according to regulating the main shaft angle.
2. case as claimed in claim 1 becomes with preventing on-load deciliter isolating switch, adopt high voltage isolator as the electric power incoming line switch, primary cut-out or high voltage load switch are adopted in outlet, isolating switch is the side-mounting formula, its feature: be to adopt post rod type position travel switch, it is installed on isolator operation panel inboard, and near near the isolating switch panel operation jack, and push rod one side of travel switch can be answered back in T jacket tube operating grip inserting side and when making it to insert.
3. case as claimed in claim 1 becomes with preventing on-load deciliter isolating switch, adopt high voltage isolator as the electric power incoming line switch, primary cut-out or high voltage load switch are adopted in outlet, isolating switch is the side-mounting formula, it is characterized in that: switch is installed on the position contact of the pulley-type position travel switch near the installation support of isolating switch body main shaft, is connected in circuit breaker or the on-load switch closing circuit; Or switch is installed on the contact of isolator operation panel medial roof rod-type position travel switch, is connected in circuit breaker or the on-load switch sub-gate circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201886793U CN202094037U (en) | 2011-04-01 | 2011-06-07 | On-load switchingin or switchingoff prevention isolating switch for box substation |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120092812 | 2011-04-01 | ||
| CN201120092812.5 | 2011-04-01 | ||
| CN2011201886793U CN202094037U (en) | 2011-04-01 | 2011-06-07 | On-load switchingin or switchingoff prevention isolating switch for box substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202094037U true CN202094037U (en) | 2011-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201886793U Expired - Fee Related CN202094037U (en) | 2011-04-01 | 2011-06-07 | On-load switchingin or switchingoff prevention isolating switch for box substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202094037U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048547A (en) * | 2015-07-13 | 2015-11-11 | 清华大学 | Charging device |
-
2011
- 2011-06-07 CN CN2011201886793U patent/CN202094037U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048547A (en) * | 2015-07-13 | 2015-11-11 | 清华大学 | Charging 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: 20111228 Termination date: 20150607 |
|
| EXPY | Termination of patent right or utility model |