CN213600811U - Device for quickly identifying fault of high-voltage motor switch cabinet - Google Patents
Device for quickly identifying fault of high-voltage motor switch cabinet Download PDFInfo
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- CN213600811U CN213600811U CN202022946796.3U CN202022946796U CN213600811U CN 213600811 U CN213600811 U CN 213600811U CN 202022946796 U CN202022946796 U CN 202022946796U CN 213600811 U CN213600811 U CN 213600811U
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Abstract
The utility model relates to a metallurgical steel rolling device field especially relates to a device of high-tension motor cubical switchboard quick identification trouble, including peripheral tripping signal contact K and peripheral trouble discernment clamp plate LP2 fault identification circuit who forms after establishing ties, fault identification circuit both ends connect respectively on positive direct current control generating line + KM end and protection combined floodgate clamp plate LP1, fault identification circuit with this cabinet separating brake button SB2 parallelly connected; the fault identification circuit is used for judging that a peripheral low-voltage fault or a high-voltage motor switch cabinet control fault is caused by closing the peripheral trip signal contact K and manually opening the LP2 pressing plate when the fault occurs; the utility model discloses install even piece of external trip signal switching on the high-pressure chamber cubical switchboard, simple structure opens even piece and is high pressure or low pressure control trouble through the experimental quick judgement of transmission when the trouble, has effectively reduced the fault range, reaches quick troubleshooting's purpose.
Description
Technical Field
The utility model relates to a metallurgical steel rolling device field especially relates to a high tension motor cubical switchboard fault recognition device.
Background
The motor control part of the existing metallurgical steel rolling high-voltage switch cabinet often breaks down, so that the high-voltage switch cabinet cannot be switched on, and the motor work is influenced.
Disclosure of Invention
An object of the utility model is to avoid prior art's not enough to provide a simple structure, the operation is high-efficient, convenient, can reach the device of the quick discernment trouble of high tension motor cubical switchboard of quick troubleshooting purpose.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a device for rapidly identifying faults of a high-voltage motor switch cabinet comprises a secondary control circuit and a control panel; the secondary control circuit comprises:
the direct current control switch Q1 and the comprehensive protection device In are connected to the positive direct current control bus + KM and the negative direct current control bus-KM;
the remote on-site transfer switch SA and the on-site closing button SB3 are connected In series, and then two ends of the remote on-site transfer switch SA and the on-site closing button SB3 are respectively connected to the positive direct current control bus + KM end and the comprehensive protection device In;
the test closing button SB1 is connected in parallel with a series circuit of the remote local transfer switch SA and the field closing button SB3 for carrying out a transmission test;
the switch-off button SB2 and the protection switch-on pressing plate LP1 are connected In series, and then the switch-off button SB2 and the protection switch-on pressing plate LP1 are connected In series, and then two ends of the switch-off button SB 3526 and the protection switch-on pressing plate LP1 are respectively connected to the positive direct current control bus + KM end and the comprehensive protection device In;
a peripheral trip signal contact K and a peripheral fault identification pressing plate LP2 are connected in series to form a fault identification circuit, two ends of the fault identification circuit are respectively connected to the positive direct current control bus + KM end and the protection closing pressing plate LP1, and the fault identification circuit is connected in parallel with the switch-off button SB2 of the cabinet; the fault identification circuit is used for judging that a peripheral low-voltage fault or a high-voltage motor switch cabinet control fault is caused by closing the peripheral trip signal contact K and manually opening the LP2 pressing plate when the fault occurs;
the on-site tripping device also comprises an on-site tripping button SB4, and an on-site tripping button SB4 is connected in parallel to the peripheral tripping signal contact K.
Further, the method also comprises the following steps:
the circuit breaker auxiliary node DL and the closing coil HQ are connected In series, and then two ends of the circuit breaker auxiliary node DL and the closing coil HQ are respectively connected to the negative direct current control bus-KM end and the comprehensive protection device In;
and the other circuit breaker auxiliary node DL, the two ends of the other circuit breaker auxiliary node DL and the opening coil TQ after being connected In series are respectively connected to the negative direct current control bus-KM end and the comprehensive protection device In.
Furthermore, the remote local transfer switch SA is connected with a field closing button SB3 In series and then is connected to an input terminal of the integrated protection device In; the switch-off button SB2 of the cabinet is connected with the protection switch-on pressure plate LP1 In series and then is also connected with the input terminal of the integrated protection device In.
Further, the circuit breaker auxiliary node DL and the closing coil HQ are connected In series and then connected to an output terminal of the integrated protection device In; and the other breaker auxiliary node DL is also connected with an output terminal of the comprehensive protection device In after being connected with the switching-off coil TQ In series.
Furthermore, a start button, a stop button and a change-over switch which are controlled by the field closing button SB3, the switch-off button SB2 and the remote local change-over switch SA in the secondary control circuit and are correspondingly arranged are arranged on the control panel;
the protection switching-on pressure plate LP1 and the peripheral fault recognition pressure plate LP2 are controlled and are correspondingly provided with an LP1 switch and an LP2 switch.
Furthermore, a start-stop switch energy storage signal lamp is arranged on the control panel.
The utility model has the advantages that: the utility model discloses high-voltage chamber cubical switchboard on install external trip signal switching even piece, simple structure opens even piece and is high pressure or low pressure control trouble through the experimental quick judgement of transmission when the trouble, has effectively reduced the fault range, reaches the purpose of quick troubleshooting.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is the control panel schematic diagram of the high-voltage switch cabinet instrument room of the utility model.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1: as shown in fig. 1 and 2, a device for rapidly identifying a fault of a high-voltage motor switch cabinet comprises a secondary control circuit and a control panel; the secondary control circuit comprises:
the direct current control switch Q1 and the comprehensive protection device In are connected to the positive direct current control bus + KM and the negative direct current control bus-KM;
the remote on-site transfer switch SA and the on-site closing button SB3 are connected In series, and then two ends of the remote on-site transfer switch SA and the on-site closing button SB3 are respectively connected to the positive direct current control bus + KM end and the comprehensive protection device In;
the test closing button SB1 is connected in parallel with a series circuit of the remote local transfer switch SA and the field closing button SB3 for carrying out a transmission test;
the switch-off button SB2 and the protection switch-on pressing plate LP1 are connected In series, and then the switch-off button SB2 and the protection switch-on pressing plate LP1 are connected In series, and then two ends of the switch-off button SB 3526 and the protection switch-on pressing plate LP1 are respectively connected to the positive direct current control bus + KM end and the comprehensive protection device In;
a peripheral trip signal contact K and a peripheral fault identification pressing plate LP2 are connected in series to form a fault identification circuit, two ends of the fault identification circuit are respectively connected to the positive direct current control bus + KM end and the protection closing pressing plate LP1, and the fault identification circuit is connected in parallel with the switch-off button SB2 of the cabinet; the fault identification circuit is used for judging that a peripheral low-voltage fault or a high-voltage motor switch cabinet control fault is caused by closing the peripheral trip signal contact K and manually opening the LP2 pressing plate when the fault occurs;
the on-site tripping device also comprises an on-site tripping button SB4, and an on-site tripping button SB4 is connected in parallel to the peripheral tripping signal contact K.
The circuit breaker auxiliary node DL and the closing coil HQ are connected In series, and then two ends of the circuit breaker auxiliary node DL and the closing coil HQ are respectively connected to the negative direct current control bus-KM end and the comprehensive protection device In;
and the other circuit breaker auxiliary node DL, the two ends of the other circuit breaker auxiliary node DL and the opening coil TQ after being connected In series are respectively connected to the negative direct current control bus-KM end and the comprehensive protection device In.
Furthermore, the remote local transfer switch SA is connected with a field closing button SB3 In series and then is connected to an input terminal of the integrated protection device In; the switch-off button SB2 of the cabinet is connected with the protection switch-on pressure plate LP1 In series and then is also connected with the input terminal of the integrated protection device In.
The circuit breaker auxiliary node DL is connected with a closing coil HQ In series and then is connected to an output terminal of the integrated protection device In; and the other breaker auxiliary node DL is also connected with an output terminal of the comprehensive protection device In after being connected with the switching-off coil TQ In series.
The control panel is provided with a start button, a stop button and a change-over switch which are controlled by the on-site closing button SB3, the switch-off button SB2 and the remote on-site change-over switch SA in the secondary control circuit and are correspondingly arranged;
the protection switching-on pressure plate LP1 and the peripheral fault recognition pressure plate LP2 are controlled and are correspondingly provided with an LP1 switch and an LP2 switch.
The control panel is also provided with an energy storage signal lamp for starting, stopping and switching.
The utility model discloses before the use, when the system broke down, demolish peripheral trip signal 33# line earlier, get rid of peripheral fault trip signal outside tripping circuit, turn to the test position with the major loop circuit breaker again, do the transmission test again, if the major loop circuit breaker can close a floodgate and can judge for peripheral low voltage fault, also peripheral fault arouses that the site node is closed exactly, be peripheral site node as the dotted line frame normal opening point in the picture, if the major loop circuit breaker can not close a floodgate then judge for high-voltage board control fault. After the fault processing is finished, the 33# line needs to be recovered, and the equipment can operate.
Use the utility model discloses afterwards, when the system broke down, direct disconnection LP2 clamp plate need not the tear-off line, can get rid of peripheral fault tripping signal outside tripping circuit, directly change the major loop circuit breaker to experimental position, do the transmission test again, if the major loop circuit breaker can close a floodgate and can judge for peripheral low pressure fault, also be that peripheral fault arouses the site node closure exactly, be peripheral site node as the broken line frame normal open point in the picture, if the major loop circuit breaker can not close a floodgate then judge for high-voltage board control fault. After the fault processing is finished, the equipment can be operated by only closing the LP2 pressure plate. Faults are identified rapidly, when troubleshooting is shortened greatly, the faults are identified rapidly, and troubleshooting time is shortened greatly.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A device for rapidly identifying faults of a high-voltage motor switch cabinet is characterized by comprising a secondary control circuit and a control panel; the secondary control circuit comprises:
the direct current control switch Q1 and the comprehensive protection device In are connected to the positive direct current control bus + KM and the negative direct current control bus-KM;
the remote on-site transfer switch SA and the on-site closing button SB3 are connected In series, and then two ends of the remote on-site transfer switch SA and the on-site closing button SB3 are respectively connected to the positive direct current control bus + KM end and the comprehensive protection device In;
the test closing button SB1 is connected in parallel with a series circuit of the remote local transfer switch SA and the field closing button SB3 for carrying out a transmission test;
the switch-off button SB2 and the protection switch-on pressing plate LP1 are connected In series, and then the switch-off button SB2 and the protection switch-on pressing plate LP1 are connected In series, and then two ends of the switch-off button SB 3526 and the protection switch-on pressing plate LP1 are respectively connected to the positive direct current control bus + KM end and the comprehensive protection device In;
a peripheral trip signal contact K and a peripheral fault identification pressing plate LP2 are connected in series to form a fault identification circuit, two ends of the fault identification circuit are respectively connected to the positive direct current control bus + KM end and the protection closing pressing plate LP1, and the fault identification circuit is connected in parallel with the switch-off button SB2 of the cabinet; the fault identification circuit is used for judging that a peripheral low-voltage fault or a high-voltage motor switch cabinet control fault is caused by closing the peripheral trip signal contact K and manually opening the LP2 pressing plate when the fault occurs;
the on-site tripping device also comprises an on-site tripping button SB4, and an on-site tripping button SB4 is connected in parallel to the peripheral tripping signal contact K.
2. The apparatus for rapidly identifying faults in a high voltage electrical machine switch cabinet according to claim 1, further comprising:
the circuit breaker auxiliary node DL and the closing coil HQ are connected In series, and then two ends of the circuit breaker auxiliary node DL and the closing coil HQ are respectively connected to the negative direct current control bus-KM end and the comprehensive protection device In;
and the other circuit breaker auxiliary node DL, the two ends of the other circuit breaker auxiliary node DL and the opening coil TQ after being connected In series are respectively connected to the negative direct current control bus-KM end and the comprehensive protection device In.
3. The apparatus for rapidly identifying fault of high voltage motor switch cabinet according to claim 1, wherein said remote local transfer switch SA is connected In series with a local closing button SB3 and then connected to the input terminal of said integrated protection device In; the switch-off button SB2 of the cabinet is connected with the protection switch-on pressure plate LP1 In series and then is also connected with the input terminal of the integrated protection device In.
4. The apparatus for rapidly identifying fault of high voltage motor switch cabinet according to claim 2, wherein the breaker auxiliary node DL is connected In series with the closing coil HQ and then connected to the output terminal of the integrated protection apparatus In; and the other breaker auxiliary node DL is also connected with an output terminal of the comprehensive protection device In after being connected with the switching-off coil TQ In series.
5. The apparatus for rapidly identifying faults of a high-voltage motor switch cabinet as claimed in any one of claims 1 to 4, wherein the control panel is provided with a start button, a stop button and a change-over switch which are controlled by and correspond to the on-site closing button SB3, the cabinet opening button SB2 and the remote local change-over switch SA in the secondary control circuit;
the protection switching-on pressure plate LP1 and the peripheral fault recognition pressure plate LP2 are controlled and are correspondingly provided with an LP1 switch and an LP2 switch.
6. The device for rapidly identifying the faults of the high-voltage motor switch cabinet as claimed in claim 5, wherein a start, stop and switch energy storage signal lamp is further arranged on the control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022946796.3U CN213600811U (en) | 2020-12-11 | 2020-12-11 | Device for quickly identifying fault of high-voltage motor switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022946796.3U CN213600811U (en) | 2020-12-11 | 2020-12-11 | Device for quickly identifying fault of high-voltage motor switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213600811U true CN213600811U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022946796.3U Active CN213600811U (en) | 2020-12-11 | 2020-12-11 | Device for quickly identifying fault of high-voltage motor switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213600811U (en) |
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2020
- 2020-12-11 CN CN202022946796.3U patent/CN213600811U/en active Active
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