CN212908628U - Low-voltage capacitance compensation cabinet - Google Patents
Low-voltage capacitance compensation cabinet Download PDFInfo
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- CN212908628U CN212908628U CN202021821429.4U CN202021821429U CN212908628U CN 212908628 U CN212908628 U CN 212908628U CN 202021821429 U CN202021821429 U CN 202021821429U CN 212908628 U CN212908628 U CN 212908628U
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- fuse
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a low-voltage capacitance compensation cabinet, which comprises a cabinet body, wherein a capacitor, a capacitance switching contactor, a relay, a fuse, a current transformer and a voltage change-over switch are arranged in the cabinet body, the ampere meter, isolator, voltmeter and capacitance compensation controller, the fuse, the capacitance switch contactor, relay and condenser establish ties through the cable and form compensating circuit, capacitance compensation controller's input with set up the internal electric wire netting circuit connection of cabinet, the output is connected to compensating circuit's input, compensating circuit's output is connected to electric wire netting circuit, isolator and current transformer set up between electric wire netting circuit and compensating circuit, isolator's one end and electric wire netting circuit connection, isolator's the other end is connected with current transformer's input, the ampere meter is connected with the current transformer electricity, voltage conversion switch and voltmeter all set up in electric wire netting circuit. The utility model discloses can intelligent automatic compensation, need not manual operation, greatly reduced cost of labor improves electric wire netting efficiency.
Description
Technical Field
The utility model relates to an electricity cabinet technical field, in particular to low-voltage capacitance compensation cabinet.
Background
With the rapid development and wide application of microelectronic technology, digital control technology, communication and network technology, the intelligent technology of low-voltage electrical appliances is rapidly developed, and intellectualization, integration, networking, high reliability, availability, maintainability, energy conservation, environmental protection and safety become the mainstream of the development of intelligent electrical appliances.
With the increasing requirements of power systems and power consumers on the quality of power supplies, the original manual low-voltage compensation mode, that is, an electrician manually switches a capacitor according to display data of a power factor table, is not suitable for the development of power grids.
Disclosure of Invention
The to-be-solved technical problem of the utility model is, to the not enough among the above-mentioned prior art, provide a low voltage capacitance compensation cabinet, it can intelligent automatic compensation, need not manual operation, and greatly reduced cost of labor improves electric wire netting efficiency.
In order to solve the technical problem, the technical scheme of the utility model is that:
a low-voltage capacitance compensation cabinet comprises a cabinet body, wherein a capacitor, a capacitance switching contactor, a relay, a fuse, a current transformer, a voltage change-over switch, an ammeter, an isolating switch, a voltmeter and a capacitance compensation controller are arranged in the cabinet body, the fuse, the capacitance switching contactor, the relay and the capacitor are connected in series through cables to form a compensation circuit, the input end of the capacitance compensation controller is connected with a power grid circuit arranged in the cabinet body, the output end of the capacitance compensation controller is connected to the input end of the compensation circuit, the output end of the compensation circuit is connected to the power grid circuit, the isolating switch and the current transformer are arranged between the power grid circuit and the compensation circuit, one end of the isolating switch is connected with the power grid circuit, the other end of the isolating switch is connected with the input end of the current transformer, the output end, the ammeter is electrically connected with the current transformer, and the voltage conversion switch and the voltmeter are both arranged in the power grid circuit.
As a preferred scheme, still be provided with the lightning-arrest circuit that is used for taking shelter from the thunder in the cabinet body, the lightning-arrest circuit is parallelly connected with compensating circuit, the lightning-arrest circuit includes fuse and surge protector, the one end of fuse is connected with current transformer's output electricity, the other end and the surge protector electricity of fuse are connected.
As a preferred scheme, a plurality of wiring terminals are arranged at the rear end of the cabinet body, and the wiring terminals are electrically connected with the output end of the compensation circuit.
As a preferred scheme, the upper portion of the rear end of the cabinet body is provided with a cooling fan, the cabinet body is further internally provided with a temperature controller, one end of the temperature controller is electrically connected with the power grid circuit through a fuse, and the other end of the temperature controller is electrically connected with the cooling fan.
As a preferred scheme, the front end of the cabinet body is provided with an indicator light for indicating the work of the capacitor.
As a preferred scheme, the lower part of the front end of the cabinet body, the bottom of the cabinet body and the upper end of the cabinet body are all provided with heat dissipation holes.
As a preferred scheme, the cabinet body is also internally provided with a mounting plate for placing a fuse, a relay and a capacitance switching contactor.
As a preferred scheme, the front end of the cabinet body is provided with an isolating switch handle, and the isolating switch handle is connected with an isolating switch.
Preferably, the isolating switch is a single-throw switch.
The utility model has the advantages that: fuse, electric capacity switching contactor, relay and condenser establish ties through the cable and form compensating circuit, the input of capacitance compensation controller with set up the internal electric wire netting circuit connection in cabinet, the output is connected to compensating circuit's input, compensating circuit's output is connected to electric wire netting circuit, just so can realize intelligent automatic compensation, need not manual operation, greatly reduced cost of labor improves electric wire netting efficiency.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
fig. 2 is a rear view of an embodiment of the present invention;
FIG. 3 is an internal side view of an embodiment of the present invention;
fig. 4 is an electrical schematic diagram of the low voltage capacitance compensation cabinet of the present invention.
In the figure: 1-cabinet body, 2-capacitor, 3-capacitance switching contactor, 4-relay, 5-fuse, 6-current transformer, 7-voltage change-over switch, 8-ammeter, 9-isolating switch, 10-voltmeter, 11-capacitance compensation controller, 12-surge protector, 13-wiring terminal, 14-cooling fan, 15-indicator light, 16-cooling hole, 17-mounting plate and 18-isolating switch handle.
Detailed Description
The structure and operation of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, a low voltage capacitance compensation cabinet comprises a cabinet body 1, a capacitor 2, a capacitance switching contactor 3, a relay 4, a fuse 5, a current transformer 6, a voltage converting switch 7, an ammeter 8, an isolating switch 9, a voltmeter 10 and a capacitance compensation controller 11 are arranged in the cabinet body 1, the fuse 5, the capacitance switching contactor 3, the relay 4 and the capacitor 2 are connected in series through a cable to form a compensation circuit, an input end of the capacitance compensation controller 11 is connected with a power grid circuit arranged in the cabinet body 1, an output end of the capacitance compensation controller is connected to an input end of the compensation circuit, an output end of the compensation circuit is connected to the power grid circuit, the isolating switch 9 and the current transformer 6 are arranged between the power grid circuit and the compensation circuit, one end of the isolating switch 9 is connected with the power grid circuit, the other end of the isolating switch 9 is connected with an input end, the output end of the current transformer 6 is connected with the input end of the compensation circuit, the ammeter 8 is electrically connected with the current transformer 6, the voltage conversion switch 7 and the voltmeter 10 are both arranged in a power grid circuit, wherein the capacitor 2 is a power capacitor, and the relay 4 is a thermal relay.
As a preferred scheme, still be provided with the lightning-arrest circuit that is used for lightning-arrest in the cabinet body 1, the lightning-arrest circuit is parallelly connected with compensating circuit, the lightning-arrest circuit includes fuse 5 and surge protector 12, the one end of fuse 5 is connected with current transformer 6's output electricity, the other end and the surge protector 12 electricity of fuse 5 are connected, just so enable the compensation cabinet and have lightning-arrest function, more effective life who prolongs the compensation cabinet.
As a preferred scheme, the rear end of the cabinet body 1 is provided with a plurality of wiring terminals 13, the wiring terminals 13 are electrically connected with the output end of the compensation circuit, the wiring terminals 13 can be conveniently arranged for wiring, and the wiring efficiency is effectively improved.
As a preferred scheme, the upper portion of the rear end of the cabinet body 1 is provided with a cooling fan 14, a temperature controller is further arranged in the cabinet body 1, one end of the temperature controller is electrically connected with a power grid circuit through a fuse 5, the other end of the temperature controller is electrically connected with the cooling fan 14, so that the on-off of the cooling fan 14 can be controlled according to the temperature in the cabinet body 1, and the intelligent, environment-friendly and energy-saving cooling cabinet is more intelligent.
Preferably, an indicator light 15 for indicating the operation of the capacitor 2 is arranged at the front end of the cabinet body 1.
As a preferred scheme, the lower part of the front end of the cabinet body 1, the bottom of the cabinet body 1 and the upper end of the cabinet body 1 are provided with heat dissipation holes 16, so that the heat dissipation function of the compensation cabinet can be effectively improved, and the service life of the compensation cabinet is effectively prolonged.
As a preferable scheme, a mounting plate 17 is further disposed in the cabinet 1, and is used for placing the fuse 5, the relay 4 and the capacitance switching contactor 3.
As a preferable scheme, an isolating switch handle 18 is arranged at the front end of the cabinet body 1, and the isolating switch handle 18 is connected with the isolating switch 9.
Preferably, the isolating switch 9 is a single-throw knife switch, and the isolating switch 9 is a fused knife switch HD13 BX-400/31.
The utility model has the advantages that: fuse 5, electric capacity switching contactor 3, relay 4 and condenser 2 establish ties through the cable and form compensating circuit, the input of capacitance compensation controller 11 with set up the electric wire netting circuit connection in the cabinet body 1, the output is connected to compensating circuit's input, compensating circuit's output is connected to electric wire netting circuit, just so can realize intelligent automatic compensation, need not manual operation, greatly reduced cost of labor improves electric wire netting efficiency.
The above, only the utility model discloses preferred embodiment, all be according to the utility model discloses a technical scheme does any slight modification, the equivalent change and the modification to above embodiment, all belong to the utility model discloses technical scheme's within range.
Claims (9)
1. A low-voltage capacitance compensation cabinet is characterized in that: comprises a cabinet body, wherein a capacitor, a capacitance switching contactor, a relay, a fuse, a current transformer, a voltage change-over switch, an ammeter, an isolating switch, a voltmeter and a capacitance compensation controller are arranged in the cabinet body, the fuse, the capacitance switching contactor, the relay and the capacitor are connected in series through cables to form a compensation circuit, the input end of the capacitance compensation controller is connected with a power grid circuit arranged in the cabinet body, the output end of the capacitance compensation controller is connected to the input end of the compensation circuit, the output end of the compensation circuit is connected to the power grid circuit, the isolating switch and the current transformer are arranged between the power grid circuit and the compensation circuit, one end of the isolating switch is connected with the power grid circuit, the other end of the isolating switch is connected with the input end of the current transformer, the output end of the current transformer is connected with, the voltage conversion switch and the voltmeter are arranged in the power grid circuit.
2. The low voltage capacitance compensation cabinet according to claim 1, wherein: the cabinet is internally provided with a lightning protection circuit for lightning protection, the lightning protection circuit is connected with the compensation circuit in parallel, the lightning protection circuit comprises a fuse and a surge protector, one end of the fuse is electrically connected with the output end of the current transformer, and the other end of the fuse is electrically connected with the surge protector.
3. The low voltage capacitance compensation cabinet according to claim 1, wherein: the rear end of the cabinet body is provided with a plurality of wiring terminals, and the wiring terminals are electrically connected with the output end of the compensation circuit.
4. The low voltage capacitance compensation cabinet according to claim 1, wherein: the cabinet is characterized in that a cooling fan is arranged at the upper part of the rear end of the cabinet body, a temperature controller is further arranged in the cabinet body, one end of the temperature controller is electrically connected with the power grid circuit through a fuse, and the other end of the temperature controller is electrically connected with the cooling fan.
5. The low voltage capacitance compensation cabinet according to claim 1, wherein: the front end of the cabinet body is provided with an indicator light for indicating the work of the capacitor.
6. The low voltage capacitance compensation cabinet according to claim 1, wherein: the lower part of the front end of the cabinet body, the bottom of the cabinet body and the upper end of the cabinet body are provided with heat dissipation holes.
7. The low voltage capacitance compensation cabinet according to claim 1, wherein: the cabinet body is also internally provided with a mounting plate for placing a fuse, a relay and a capacitance switching contactor.
8. The low voltage capacitance compensation cabinet according to claim 1, wherein: the front end of the cabinet body is provided with an isolating switch handle, and the isolating switch handle is connected with an isolating switch.
9. The low voltage capacitance compensation cabinet according to claim 8, wherein: the isolating switch is a single-throw switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021821429.4U CN212908628U (en) | 2020-08-27 | 2020-08-27 | Low-voltage capacitance compensation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021821429.4U CN212908628U (en) | 2020-08-27 | 2020-08-27 | Low-voltage capacitance compensation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212908628U true CN212908628U (en) | 2021-04-06 |
Family
ID=75250774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021821429.4U Active CN212908628U (en) | 2020-08-27 | 2020-08-27 | Low-voltage capacitance compensation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212908628U (en) |
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2020
- 2020-08-27 CN CN202021821429.4U patent/CN212908628U/en active Active
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