CN204696794U - A kind of twin-power switch cabinet - Google Patents
A kind of twin-power switch cabinet Download PDFInfo
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- CN204696794U CN204696794U CN201520412088.8U CN201520412088U CN204696794U CN 204696794 U CN204696794 U CN 204696794U CN 201520412088 U CN201520412088 U CN 201520412088U CN 204696794 U CN204696794 U CN 204696794U
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Abstract
The utility model discloses a kind of twin-power switch cabinet, civil power breaker control circuit is coupled to mains supply output by the second closed contact, generator circuit breaker control loop is coupled to generator power supply output by the first closed contact, mains supply output is opened contact by first and is coupled to load, and generator power supply output is opened contact by second and is coupled to load; First opens contact and the first closed contact is mechanical interlocked, second opens contact and the second closed contact is mechanical interlocked, first opens contact and second, and to open contact mechanical interlocked, first opens contact is controlled by the first coil, second opens contact is controlled by the second coil, first coil has been arranged in series the first normally opened contact and the second normally-closed contact, second coils connected in series is provided with the second normally opened contact and the second normally-closed contact, first normally opened contact, the first normally-closed contact are all controlled by the first coil motion, and the second normally-closed contact and the second normally-closed contact are all controlled by the second coil motion.
Description
Technical field
The utility model relates to a kind of electric equipment, and more particularly, it relates to a kind of twin-power switch cabinet.
Background technology
302 become diesel generator room twin-power switch cabinet comes into operation so far in November, 2006, and what switch adopted is double-throw disconnecting switch, adopts 2 mechanical interlocked contactors to control on/off major loop.Its effect ensures that emergency system resumes operation in time, and current 302 change accident bus section, busbar sections become four lines by one and power, and when one becomes four line dead electricity, becomes two wires power by the switching of twin-power switch cabinet by one.When external power grid dead electricity, switched by twin-power switch cabinet and powered by Chai Faji.Guarantee accident bus section, busbar section is quick, stable to restore electricity.
But, because Contactor Starting electric current is large, once be stuck very easily burn coil.And contactor can connect load current, but can not cutting-off of short-circuit electric current.Handover operation process is loaded down with trivial details, and in case of emergency loaded down with trivial details operating process easily causes again accident to occur.Mechanical interlocked contactor machinery blocks and accident bus section, busbar section delay recovery is powered.The state of affairs is caused to expand.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide one when mechanical interlocked inefficacy, can be realized the twin-power switch cabinet of safety guarantee by electrical interlocks.
For achieving the above object, the utility model provides following technical scheme: a kind of twin-power switch cabinet, comprise civil power breaker control circuit and generator circuit breaker control loop, described civil power breaker control circuit is coupled to mains supply output by the second closed contact, described generator circuit breaker control loop is coupled to generator power supply output by the first closed contact, described mains supply output is opened contact by first and is coupled to load, and described generator power supply output is opened contact by second and is coupled to load, described first opens contact and the first closed contact is mechanical interlocked, described second opens contact and the second closed contact is mechanical interlocked, described first opens contact and second, and to open contact mechanical interlocked, described first opens contact is controlled by the first coil, described second opens contact is controlled by the second coil, described first coil has been arranged in series the first normally opened contact and the second normally-closed contact, described second coils connected in series is provided with the second normally opened contact and the second normally-closed contact, described first normally opened contact, first normally-closed contact is all controlled by the first coil motion, described second normally-closed contact and the second normally-closed contact are all controlled by the second coil motion.By such setting, when first open contact controlled closed time, except by mechanical interlocked can directly control second open contact disconnect, when occur mechanical stuck time, the safety guarantee of switch cubicle can also be realized by electrical interlocks, when first coil obtains electric adhesive, first opens the closing of contact, so now the first coil adhesive first simultaneously normally-closed contact disconnects, so the second coil losing electricity, second normally-closed contact is kept closed, realize first and open the electrically locked of contact, and lose electricity due to the second coil, so now second open contact how action all can not close, ensure that fail safe, just switching can be completed when knowing that the second coil obtains electric.
The utility model can be set to further: also comprise control circuit, and described control circuit comprises the first control part and the second control part, and described first control part opens contact action for controlling first, and described second control part opens contact action for controlling second.By the control of control circuit, can realize the switching of the closed and disconnected of contact, circuit is simple, is easy to realize maintenance.
The utility model can be set to further: described control circuit also comprises instruction unit, is used to indicate first and opens the operating state that contact is opened in contact and second.By the setting of instruction unit, user can recognize the operating state of current twin-power switch cabinet very intuitively, improves the interactive performance of this equipment while ensure that fail safe.
The utility model can be set to further: described twin-power switch cabinet is also provided with three-phase digital multifunctional electric meter, and described three-phase digital multifunctional electric meter is for detecting the power supply state of threephase generator.User can be made to know intuitively, and current civil power enters the parameter state such as voltage, electric current, is convenient to safety management.
The utility model can be set to further: described civil power breaker control circuit and described generator circuit breaker control loop include intelligent universal circuit breaker.Intelligent universal circuit breaker has higher hot dynamic stability, high breaking, zero arcing.There is higher Electro Magnetic Compatibility and meet insulation request.
By adopting technique scheme, serve following effect compared to existing technology: by the setting of circuit, original mechanical interlocked basis adds electrical interlocks, further increase the security performance of this twin-power switch cabinet when switching over, ensure that mechanical interlocked there is stuck phenomenon time, can ensure that it is locked by electrical interlocks, avoid potential safety hazard.
Accompanying drawing explanation
Fig. 1 is the utility model control circuit figure;
Fig. 2 is the utility model three phase supply commutation circuit figure;
Fig. 3 is the utility model single phase power supply switching figure;
Fig. 4 is the utility model electrical interlocks circuit diagram.
Reference numeral: 1, control circuit; 11, the first control part; 12, the second control part; 2, civil power breaker control circuit; 3, generator circuit breaker control loop; 4, electrical interlocks circuit; 5, intelligent universal circuit breaker; 6, three-phase digital multifunctional electric meter.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model embodiment is described further.
A kind of twin-power switch cabinet, comprise civil power breaker control circuit 2 and generator circuit breaker control loop 3, described civil power breaker control circuit 2 is coupled to mains supply output by the second closed contact, described generator circuit breaker control loop 3 is coupled to generator power supply output by the first closed contact, described mains supply output is opened contact by first and is coupled to load, and described generator power supply output is opened contact by second and is coupled to load, described first opens contact and the first closed contact is mechanical interlocked, described second opens contact and the second closed contact is mechanical interlocked, described first opens contact and second, and to open contact mechanical interlocked, described first opens contact is controlled by the first coil, described second opens contact is controlled by the second coil, described first coil has been arranged in series the first normally opened contact and the second normally-closed contact, described second coils connected in series is provided with the second normally opened contact and the second normally-closed contact, described first normally opened contact, first normally-closed contact is all controlled by the first coil motion, described second normally-closed contact and the second normally-closed contact are all controlled by the second coil motion.As described in Figure 4, by such setting, when first open contact controlled closed time, except by mechanical interlocked can directly control second open contact disconnect, when occur mechanical stuck time, the safety guarantee of switch cubicle can also be realized by electrical interlocks, when first coil obtains electric adhesive, first opens the closing of contact, so now the first coil adhesive first simultaneously normally-closed contact disconnects, so the second coil losing electricity, second normally-closed contact is kept closed, realize first and open the electrically locked of contact, and lose electricity due to the second coil, so now second open contact how action all can not close, ensure that fail safe, just switching can be completed when knowing that the second coil obtains electric.Such electrical interlocks circuit 4 is preferably used for twin-power switch cabinet civil power breaker control circuit 2 and accident section IV section of service entrance switch control loop electrical interlocks of this equipment.And twin-power switch cabinet generator circuit breaker control loop 3 and accident section IV section of service entrance switch control loop electrical interlocks.Because this equipment is applicable to twin-power switch cabinet, circuit is as shown in Figures 2 and 3 the circuit connecting relation of three-phase and uniline and the setting of contact respectively.
As shown in Figure 1, control circuit 1, described control circuit 1 comprises the first control part 11 and the second control part 12, and described first control part 11 opens contact action for controlling first, and described second control part 12 opens contact action for controlling second.By the control of control circuit 1, can realize the switching of the closed and disconnected of contact, circuit is simple, is easy to realize maintenance.Instruction unit, is used to indicate first and opens the operating state that contact is opened in contact and second.By the setting of instruction unit, user can recognize the operating state of current twin-power switch cabinet very intuitively, improves the interactive performance of this equipment while ensure that fail safe.First control part 11 operation principle is as follows, and when button SB1 is pressed, ZK1 pull-in winding obtains electric, control ZK1 close, with should button SB2 be pressed time, control ZK1 disconnects; Second control part 12 works and originally leads to the first control part 11, does not repeat, and when any contact is by adhesive or when disconnecting, the instruction etc. in response to its series connection all can obtain electric, reminds user's current state.
Described twin-power switch cabinet is also provided with three-phase digital multifunctional electric meter 6, and described three-phase digital multifunctional electric meter 6 is for detecting the power supply state of threephase generator.User can be made to know intuitively, and current civil power enters the parameter state such as voltage, electric current, is convenient to safety management.Three-phase digital multifunctional electric meter 6 model elects PMC-53 as.
Described civil power breaker control circuit 2 and described generator circuit breaker control loop 3 include intelligent universal circuit breaker 5.Intelligent universal circuit breaker 5 has higher hot dynamic stability, high breaking, zero arcing.There is higher Electro Magnetic Compatibility and meet insulation request.Its model is preferably CW1-2000/4-630A, all by controlling the wiring of cable ZR-KYJV-0.75-8*2.5MM2 realizing circuit.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a twin-power switch cabinet, comprise civil power breaker control circuit and generator circuit breaker control loop, described civil power breaker control circuit is coupled to mains supply output by the second closed contact, described generator circuit breaker control loop is coupled to generator power supply output by the first closed contact, described mains supply output is opened contact by first and is coupled to load, and described generator power supply output is opened contact by second and is coupled to load, described first opens contact and the first closed contact is mechanical interlocked, described second opens contact and the second closed contact is mechanical interlocked, described first opens contact and second, and to open contact mechanical interlocked, it is characterized in that: described first opens contact is controlled by the first coil, described second opens contact is controlled by the second coil, described first coil has been arranged in series the first normally opened contact and the second normally-closed contact, described second coils connected in series is provided with the second normally opened contact and the second normally-closed contact, described first normally opened contact, first normally-closed contact is all controlled by the first coil motion, described second normally-closed contact and the second normally-closed contact are all controlled by the second coil motion.
2. a kind of twin-power switch cabinet as claimed in claim 1, it is characterized in that: also comprise control circuit, described control circuit comprises the first control part and the second control part, and described first control part opens contact action for controlling first, and described second control part opens contact action for controlling second.
3. a kind of twin-power switch cabinet as claimed in claim 2, is characterized in that: described control circuit also comprises instruction unit, is used to indicate first and opens the operating state that contact is opened in contact and second.
4. a kind of twin-power switch cabinet as claimed in claim 1, it is characterized in that: described twin-power switch cabinet is also provided with three-phase digital multifunctional electric meter, described three-phase digital multifunctional electric meter is for detecting the power supply state of threephase generator.
5. a kind of twin-power switch cabinet as claimed in claim 1, is characterized in that: described civil power breaker control circuit and described generator circuit breaker control loop include intelligent universal circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412088.8U CN204696794U (en) | 2015-06-15 | 2015-06-15 | A kind of twin-power switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412088.8U CN204696794U (en) | 2015-06-15 | 2015-06-15 | A kind of twin-power switch cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN204696794U true CN204696794U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520412088.8U Active CN204696794U (en) | 2015-06-15 | 2015-06-15 | A kind of twin-power switch cabinet |
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| CN (1) | CN204696794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960750A (en) * | 2017-03-22 | 2017-07-18 | 安徽富煌电控设备有限公司 | A kind of high-tension switch cabinet with interlock function |
-
2015
- 2015-06-15 CN CN201520412088.8U patent/CN204696794U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960750A (en) * | 2017-03-22 | 2017-07-18 | 安徽富煌电控设备有限公司 | A kind of high-tension switch cabinet with interlock function |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315204 No. 655 Haitian Road, Ningbo Petrochemical Economic Development Zone, Zhenhai District, Zhejiang, Ningbo, China Patentee after: Zhejiang Zhenyang Development Co., Ltd Address before: 315204 No. 655 Haitian Road, Ningbo Petrochemical Economic Development Zone, Zhenhai District, Zhejiang, Ningbo, China Patentee before: NINGBO OCEANKING CHEMICAL DEVELOPMENT Co.,Ltd. |