CN201374663Y - High-voltage switch starting and switching cabinet - Google Patents
High-voltage switch starting and switching cabinet Download PDFInfo
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- CN201374663Y CN201374663Y CN200920084346U CN200920084346U CN201374663Y CN 201374663 Y CN201374663 Y CN 201374663Y CN 200920084346 U CN200920084346 U CN 200920084346U CN 200920084346 U CN200920084346 U CN 200920084346U CN 201374663 Y CN201374663 Y CN 201374663Y
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Abstract
The utility model discloses a high-voltage switch starting and switching cabinet, which is characterized in that a cabinet body consists of a high-voltage chamber and a low-voltage chamber; the following electrical elements are fixedly arranged inside the high-voltage chamber: a high-voltage isolation knife switch which is fixed on the top plate of the cabinet body, an arrester and a current transformer which are arranged on the rear wall in the cabinet, a high-voltage fuse which is arranged on a separation plate at the upper part of the cabinet body, a voltage transformer which is arranged on the middle crossbeam of the cabinet, a high-voltage vacuum contactor and a starting high-voltage vacuum contactor that are arranged on the crossbeam at the lower part inside the cabinet in parallel, and a zero sequence transformer that is arranged on the soleplate in the cabinet; the low-voltage chamber is internally provided with a fixed wiring terminal, a time relay, a intermediate relay, an over-current relay, a voltage relay, a zero sequence relay, a circuit breaker and a fuse; the front panel of the high-voltage switch starting and switching cabinet is provided with a current meter, a voltage meter, an indicator lamp and a button; and the lower panel of the electrical cabinet is provided with an isolation knife switch handle.
Description
Technical field
The utility model relates to the control cubicle of electric motor starting and protection, and cabinet is switched in specifically a kind of high-voltage switch gear starting.
Background technology
The control that is used for high pressure cage modle motor at present is divided into high-tension switch cabinet and starting control cubicle.High-tension switch cabinet is made of cabinet, isolation knife, high-pressure vacuum contactor, current transformer, voltage transformer, zero-sequence transformer, lightning arrester and control protection loop, has functions such as o-volt protection loop, secondary o-volt protection loop, current-voltage measurement loop, overcurrent protection loop, ground protection loop and combined floodgate sub-gate circuit one time.The starting control cubicle is made of cabinet, high-pressure vacuum contactor, starting control and protection loop, and wherein starting control and protection loop are made up of starting time control loop, water resistance temperature protection loop, water resistance liquid level protection loop etc.Because high-tension switch cabinet separates with starting control cubicle two cabinets, causes complex operation, easily misoperation makes electric motor starting undesirable, adopts the sub-occupation space of two cabinets big simultaneously, the cost height.
Summary of the invention
The purpose of this utility model is at disadvantages of background technology; provide a kind of incorporate high-voltage switch gear starting with high pressure cage modle electric motor starting, operation and defencive function to switch cabinet, this cabinet has that electric motor starting control stabilization, defencive function are complete, easy and simple to handle, advantage such as reduce cost.
Technical solution of the present utility model is: a kind of high-voltage switch gear starting switching cabinet mainly is made up of cabinet, disconnection switch, high-pressure vacuum contactor, current transformer, voltage transformer, zero-sequence transformer, lightning arrester, fuse, low-pressure chamber, the time relay, auxiliary relay, overcurrent relay, voltage relay, zero phase-sequence relay, circuit breaker, ammeter, voltmeter, indicator light, button, major loop, protection loop and control loop etc.; It is characterized in that: cabinet is made up of hyperbaric chamber and low-pressure chamber, and the high pressure disconnection switch is fixed on the top board of cabinet, and lightning arrester and current transformer are arranged on the interior rear wall of cabinet; High-tension fuse is installed on the cabinet upper baffle plate, and voltage transformer is installed on the interior intermediate transverse girder of cabinet, and the starting high-pressure vacuum contactor is installed on the crossbeam of bottom in the cabinet side by side with the operation high-pressure vacuum contactor, and zero-sequence transformer is installed on the interior base plate of cabinet; In low-pressure chamber, be provided with binding post, the time relay, auxiliary relay, overcurrent relay, voltage relay, zero phase-sequence relay, circuit breaker and fuse are installed; On the front panel of high-voltage switch gear starting switching cabinet, ammeter, voltmeter, indicator light and button are set; On the panel of electric cabinet, be provided with the disconnection switch handle.
Major loop inlet wire lead described in the utility model connects the high pressure isolation switch, and the outlet of high pressure isolation switch connects high-pressure vacuum contactor, lightning arrester, current transformer, high-tension fuse, voltage transformer, starting high-pressure vacuum contactor, operation high-pressure vacuum contactor, zero-sequence transformer respectively to motor.
One of current transformer (1TAa, 1TAc) and current relay (1KC, 2KC, 3KC, 4KC) terminates on the ammeter PA, and the other end is earth connection respectively.
Current transformer described in the utility model (2TAa, 2TAc), voltage relay (1KC, 2KC, 3KC, 4KC) have been formed the current protection loop, current transformer (1TAa, 1TAc) and ammeter PA are in order to detect the size of main circuit current, and current relay 1KC, 2KC are in order to fast tripping protection and start protection; Current relay 3KC, 4KC are in order to overcurrent protection;
Zero-sequence transformer LH described in the utility model and zero phase-sequence relay JDJ are connected in series, the other end ground connection of zero-sequence transformer LH and zero phase-sequence relay JDJ.Form the ground protection loop by zero-sequence transformer LH and zero phase-sequence relay JDJ.By high-tension fuse (20FU, 21FU) the voltage transformer TV coil that is connected in series, another termination fuse (30FU, 31FU) of voltage transformer TV coil, the outlet of fuse (30FU, 31FU) meets voltage relay KV and voltmeter PV.Voltage transformer TV, voltage relay KV, high-tension fuse (20FU, 21FU), low-tension fuse (30FU, 31FU) and voltmeter PV form the voltage protection loop.
In the control loop described in the utility model, 220V power supply L, N connect the end of incoming cables of circuit breaker Q F respectively, contact that the outlet termination indicator light LH1 of circuit breaker Q F, LH2, LH3, LH4, relay K A1, KA2, KA3, KA4, contactor KM1, time relay KT1, button SB1, SB2, SB3 are controlled and the contact of current relay 1KC, 2KC and voltage relay KV.
The beneficial effects of the utility model are, owing to be provided with high-voltage motor operation and start loop in cabinet, can cut operating loop (but also manual switchover) automatically after starting finishes, and make the steadily switching of safety of electric motor starting, operation, can realize a key operation.The present invention have control performance good, the protection complete, easy and simple to handle, take up room little minimizing 50% and the low characteristics of cost, can be widely used in fields such as chemical industry, metallurgy, building materials.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples
Fig. 1 is the utility model structural representation.
Fig. 2 is low-pressure chamber and lower panel schematic diagram.
Fig. 3 cabinet front panel of the present utility model schematic diagram.
Fig. 4 is the utility model main loop circuit figure.
Fig. 5 is Fig. 4 current measurement circuit schematic diagram.
Fig. 6 is Fig. 4 current protection circuit theory figure.
Fig. 7 is Fig. 4 ground protection circuit theory figure.
Fig. 8 is Fig. 4 voltage protection circuit theory figure.
Fig. 9 is the utility model control loop circuit theory diagrams.
In the drawings, 1. zero-sequence transformer, 2. vacuum contactor, 3. current transformer, 4. lightning arrester, 5. high-tension fuse, 6. isolation switch, 7. low-pressure chamber, 8. hyperbaric chamber, 9. voltage transformer, 10. framework, 11. switch knobs, 12. binding posts, 13. the time relay, 14. auxiliary relays, 15. overcurrent relays, 16. voltage relays, 17. zero phase-sequence relay, 18. circuit breakers, 19. fuses, 20. ammeters, 21. voltmeter, 22. indicator lights, 23. buttons, 24. vacuum contactors.
Embodiment
In the embodiment of Fig. 1, Fig. 2 and Fig. 3, cabinet 10 of the present utility model is made up of the low-pressure chamber 7 and the hyperbaric chamber 8 of mutual isolation; In hyperbaric chamber 8: high pressure disconnection switch 6 is fixed on the top board of cabinet 10, and lightning arrester 4 and current transformer 3 are arranged on the rear wall in the cabinet 10; High-tension fuse 5 is installed on the cabinet 10 internal upper part dividing plates, voltage transformer 9 is provided with on the middle beam that is installed in the cabinet 10, starting high-pressure vacuum contactor 2 and starting high-pressure vacuum contactor 24 are installed in the cabinet 10 on the sills side by side, and zero-sequence transformer 1 is installed on the base plate in the cabinet 10.
Be provided with in the low-pressure chamber 7 of the present utility model binding post 12, the time relay 13, auxiliary relay 14, overcurrent relay 15, voltage relay 16, zero phase-sequence relay 17, circuit breaker 18 and fuse 19 are installed; On the upper panel of high-voltage switch gear starting switching cabinet, ammeter 20, voltmeter 21, indicator light 22 and button 23 are set; Left end is provided with disconnection switch handle 11 in the panel bottom of electric cabinet;
The inlet wire of the utility model major loop lead connects the high pressure isolation switch, and the outlet of high pressure isolation switch connects lightning arrester, current transformer, high-tension fuse, voltage transformer, starting high-pressure vacuum contactor, operation high-pressure vacuum contactor, zero-sequence transformer respectively to motor.
In Fig. 4 embodiment, major loop 6/10KV high-tension electricity, one the tunnel passes through current transformer (TAa, TAc) to the other end of high pressure vacuum contactor (KM1, KM2) normally opened contact, high-pressure vacuum contactor KM1, KM2 normally opened contact through high pressure isolation switch QS distinguishes connecting to neutral preface instrument transformer LH, liquid starter; The outlet connecting to neutral preface instrument transformer LH of liquid starter, zero-sequence transformer LH outlet connects motor M.Another road meets voltage transformer TV through high-tension fuse (20FU, 21FU).
In the embodiment of Fig. 5 and Fig. 6, ground connection after current transformer (1TAa, 1TAc) is connected in parallel with ammeter PA; Ground connection after current transformer 2TAa and current relay (1KC, 3KC) are connected in series; Ground connection after current transformer 2TAc and current relay (2KC, 4KC) are connected in series; Current transformer (TAa, TAc), voltage relay (1KC, 2KC, 3KC, 4KC) have been formed the current protection loop, current transformer (1TAa, 1TAc) and ammeter PA be in order to detect the size of main circuit current, by current relay (1KC, 2KC) in order to fast tripping protection and start protection; Current relay (3KC, 4KC) is in order to overcurrent protection;
In the embodiment of Fig. 7, zero-sequence transformer LH and zero phase-sequence relay JDJ are connected in series, the other end ground connection of zero-sequence transformer LH and zero phase-sequence relay JDJ.Form the ground protection loop by zero-sequence transformer LH and zero phase-sequence relay JDJ.
In the embodiment of Fig. 8, by high-tension fuse (20FU, 21FU) the voltage transformer TV coil that is connected in series, another termination fuse (30FU, 31FU) of voltage transformer TV coil, the outlet of fuse (30FU, 31FU) meets voltage relay KV and voltmeter PV respectively.Form the voltage protection loop by voltage transformer TV, voltage relay KV, high-tension fuse (20FU, 21FU), low-tension fuse (30FU, 31FU) and voltmeter PV.
Fig. 9 is a control loop schematic diagram of the present utility model, 220V power supply L, N meet circuit breaker Q F respectively, and the outlet of circuit breaker Q F connects the contact of contact that indicator light LH1, LH2, LH3, LH4, relay K A1, KA2, KA3, KA4, contactor KM1, time relay KT1, button SB1, SB2, SB3 controlled and current relay 1KC, 2KC, voltage relay KV.
Operation principle of the present utility model is: close isolation switch and closing of power circuit breaker high voltage source (6/10kv), control loop connects the 220v power supply, press down switch knob, at this moment start high-pressure vacuum contactor action adhesive, motor begins starting, and at this moment finish time relay action of electric motor starting moves high-pressure vacuum contactor action adhesive, the starting high-pressure vacuum contactor disconnects, and motor enters running status.Press opening button during shutdown, at this moment move high-pressure vacuum contactor and disconnect, motor is out of service.Because cabinet is switched in high-voltage switch gear starting and the liquid starting cabinet is interlocking, so, still be that the liquid starting cabinet can be realized the key operation that starts or stop no matter at high-tension switch cabinet.
Claims (1)
1, a kind of high-voltage switch gear starting switching cabinet mainly is made up of cabinet, disconnection switch, high-pressure vacuum contactor, current transformer, voltage transformer, zero-sequence transformer, lightning arrester, fuse, low-pressure chamber, the time relay, auxiliary relay, overcurrent relay, voltage relay, zero phase-sequence relay, circuit breaker, ammeter, voltmeter, indicator light, button, major loop and control protection loop etc.; It is characterized in that: cabinet is made up of hyperbaric chamber and low-pressure chamber, and the high pressure disconnection switch is fixed on the top board of cabinet, and lightning arrester and current transformer are arranged on the interior rear wall of cabinet; High-tension fuse is installed on the cabinet upper baffle plate, and voltage transformer is installed on the interior intermediate transverse girder of cabinet, and the starting high-pressure vacuum contactor is installed on the crossbeam of bottom in the cabinet side by side with the operation high-pressure vacuum contactor, and zero-sequence transformer is installed on the interior base plate of cabinet; In low-pressure chamber, be provided with binding post, the time relay, auxiliary relay, overcurrent relay, voltage relay, zero phase-sequence relay, circuit breaker and fuse are installed; On the front panel of high-voltage switch gear starting switching cabinet, ammeter, voltmeter, indicator light and button are set; On the lower panel of electric cabinet, be provided with the disconnection switch handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920084346U CN201374663Y (en) | 2009-03-18 | 2009-03-18 | High-voltage switch starting and switching cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920084346U CN201374663Y (en) | 2009-03-18 | 2009-03-18 | High-voltage switch starting and switching cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201374663Y true CN201374663Y (en) | 2009-12-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920084346U Expired - Fee Related CN201374663Y (en) | 2009-03-18 | 2009-03-18 | High-voltage switch starting and switching cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201374663Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037727B (en) * | 2014-06-20 | 2017-06-27 | 北方重工集团有限公司 | A kind of control guard method of high voltage electric equipment dead electricity |
| CN107968577A (en) * | 2016-10-20 | 2018-04-27 | 北京精密机电控制设备研究所 | A kind of new carrier-borne high-power control driver |
-
2009
- 2009-03-18 CN CN200920084346U patent/CN201374663Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037727B (en) * | 2014-06-20 | 2017-06-27 | 北方重工集团有限公司 | A kind of control guard method of high voltage electric equipment dead electricity |
| CN107968577A (en) * | 2016-10-20 | 2018-04-27 | 北京精密机电控制设备研究所 | A kind of new carrier-borne high-power control driver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hubei Annai Steel Mould Manufacturing Co., Ltd. Assignor: Haina Electric Co., Ltd., Xiangfan Contract record no.: 2012420000160 Denomination of utility model: High-voltage switch starting and switching cabinet Granted publication date: 20091230 License type: Exclusive License Record date: 20121010 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20170318 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |