CN202475328U - Explosion-proof alternating-current vacuum soft starter for mine - Google Patents
Explosion-proof alternating-current vacuum soft starter for mine Download PDFInfo
- Publication number
- CN202475328U CN202475328U CN2012200639505U CN201220063950U CN202475328U CN 202475328 U CN202475328 U CN 202475328U CN 2012200639505 U CN2012200639505 U CN 2012200639505U CN 201220063950 U CN201220063950 U CN 201220063950U CN 202475328 U CN202475328 U CN 202475328U
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- China
- Prior art keywords
- relay
- phase
- parallel
- branch
- push
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an explosion-proof alternating-current vacuum soft starter for a mine. A three-phase phase shift triggering chip SCR (Semiconductor Control Rectifier) is connected with a three-phase alternating-current wire; a CT (Current Transformer) is connected with a bypath of the three-phase alternating-current wire; a secondary coil of the CT is connected with a voltage-stabilization chip YM; and two branches consisting of a plurality of relays, relay contacts and press button switches are connected between voltage-stabilization chip output wires. The explosion-proof alternating-current vacuum soft starter for the mine has the advantages of being simple in wiring, easy to realize and higher in starting response sensitivity, can meet the requirements of special working environments of a mine shaft, and can switch off a fault point in time.
Description
Technical field
The utility model relates to mine vacuum starter field, is specially a kind of flame-proof mine AC vacuum soft initiator.
Background technology
Operational environment is complicated under the ore deposit, is full of various flammable explosive gas, and the electric equipment under the ore deposit generally adopts vacuum starter to control.The vacuum starter wiring of prior art is complicated, and it is low to start reaction sensitivity, can't satisfy the requirement of work under the ore deposit.
The utility model content
The utility model purpose provides a kind of flame-proof mine AC vacuum soft initiator, starts the low problem of reaction sensitivity to solve prior art mine vacuum starter.
In order to achieve the above object, the technical scheme that the utility model adopted is:
Flame-proof mine AC vacuum soft initiator; Include the motor M that inserts the three-phase alternating current line; It is characterized in that: have access to three-phase phase shift flip chip SCR on the said three-phase alternating current line; On three-phase phase shift flip chip SCR and have access to three-phase voltage table ZR; Go back the primary coil that bypass inserts a transformer CT on the said three-phase alternating current line; One of them secondary coil of transformer CT has access to voltage stabilizing chip YM; Be connected to two branch roads between the said voltage stabilizing chip output line, be serially connected with relay K 3 in one of them branch road,, on the said relay K 3 and be connected to diode D3 by the external fault switching circuit that two breakdown switch parallel connections constitute; Be serially connected with the normally-closed contact of push-button switch SB0, push-button switch SB3, push-button switch SB4, relay parallel circuits, relay K 3 in another branch road; Comprise two parallel branches in the said relay parallel circuits, be serially connected with the parallel branch one that constitutes by relay K 1 and diode D1 in one of them parallel branch,, the parallel branch four that is serially connected with the parallel branch three that constitutes by diode D2, relay K 2, relay K 4, diode D4 in another parallel branch, constitutes by push-button switch SB5, SB6, relay K 2 normally opened contacts, breakdown switch by the parallel branch two that push-button switch SB2, SB1, relay K 1 normally opened contact constitute.
The utility model wiring is simple, is easy to realize having higher startup reaction sensitivity, can adapt to the requirement of the special operational environment of mine, and can in time turn-off the fault point.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
As shown in Figure 1.Flame-proof mine AC vacuum soft initiator; Include the motor M that inserts the three-phase alternating current line; Have access to three-phase phase shift flip chip SCR on the three-phase alternating current line; On three-phase phase shift flip chip SCR and have access to three-phase voltage table ZR; Go back the primary coil that bypass inserts a transformer CT on the three-phase alternating current line; One of them secondary coil of transformer CT has access to voltage stabilizing chip YM; Be connected to two branch roads between the voltage stabilizing chip output line, the external fault switching circuit that is serially connected with relay K 3 in one of them branch road, is made up of two breakdown switch parallel connections is on the relay K 3 and be connected to diode D3; Be serially connected with the normally-closed contact of push-button switch SB0, push-button switch SB3, push-button switch SB4, relay parallel circuits, relay K 3 in another branch road; Comprise two parallel branches in the relay parallel circuits, be serially connected with the parallel branch one that constitutes by relay K 1 and diode D1 in one of them parallel branch,, the parallel branch four that is serially connected with the parallel branch three that constitutes by diode D2, relay K 2, relay K 4, diode D4 in another parallel branch, constitutes by push-button switch SB5, SB6, relay K 2 normally opened contacts, breakdown switch by the parallel branch two that push-button switch SB2, SB1, relay K 1 normally opened contact constitute.
Claims (1)
1. flame-proof mine AC vacuum soft initiator; Include the motor M that inserts the three-phase alternating current line; It is characterized in that: have access to three-phase phase shift flip chip SCR on the said three-phase alternating current line; On three-phase phase shift flip chip SCR and have access to three-phase voltage table ZR; Go back the primary coil that bypass inserts a transformer CT on the said three-phase alternating current line; One of them secondary coil of transformer CT has access to voltage stabilizing chip YM; Be connected to two branch roads between the said voltage stabilizing chip output line, be serially connected with relay K 3 in one of them branch road,, on the said relay K 3 and be connected to diode D3 by the external fault switching circuit that two breakdown switch parallel connections constitute; Be serially connected with the normally-closed contact of push-button switch SB0, push-button switch SB3, push-button switch SB4, relay parallel circuits, relay K 3 in another branch road; Comprise two parallel branches in the said relay parallel circuits, be serially connected with the parallel branch one that constitutes by relay K 1 and diode D1 in one of them parallel branch,, the parallel branch four that is serially connected with the parallel branch three that constitutes by diode D2, relay K 2, relay K 4, diode D4 in another parallel branch, constitutes by push-button switch SB5, SB6, relay K 2 normally opened contacts, breakdown switch by the parallel branch two that push-button switch SB2, SB1, relay K 1 normally opened contact constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200639505U CN202475328U (en) | 2012-02-26 | 2012-02-26 | Explosion-proof alternating-current vacuum soft starter for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200639505U CN202475328U (en) | 2012-02-26 | 2012-02-26 | Explosion-proof alternating-current vacuum soft starter for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202475328U true CN202475328U (en) | 2012-10-03 |
Family
ID=46923450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200639505U Expired - Fee Related CN202475328U (en) | 2012-02-26 | 2012-02-26 | Explosion-proof alternating-current vacuum soft starter for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202475328U (en) |
-
2012
- 2012-02-26 CN CN2012200639505U patent/CN202475328U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20180226 |