CN201444568U - Voltage-regulating screen type power supply board overpressure warning device - Google Patents
Voltage-regulating screen type power supply board overpressure warning device Download PDFInfo
- Publication number
- CN201444568U CN201444568U CN2009200271385U CN200920027138U CN201444568U CN 201444568 U CN201444568 U CN 201444568U CN 2009200271385 U CN2009200271385 U CN 2009200271385U CN 200920027138 U CN200920027138 U CN 200920027138U CN 201444568 U CN201444568 U CN 201444568U
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- power supply
- pressure regulation
- voltage
- formula power
- supply panel
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- Expired - Fee Related
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Abstract
The utility model discloses voltage-regulating screen type power supply board overpressure warning device, which belongs to the field of overpressure warning protection. The device comprises a voltage-regulating screen type power supply board TY, wherein, each phase balancing of the output end of the voltage-regulating screen type power supply board TY is connected in series with an over-voltage protection relay HBH and the main contact point JQ-1 of an AC contactor; and the input end is connected with a public input point of three parallel branch circuits through a fuse protector RD, the public output point is grounded, one parallel branch circuit is a shunt-wound circuit made up of the normally open contact HBH-1 of the over-voltage protection relay and two intelligent type time relays SJ1 and SJ2, one of the tandem branch circuits is a branch circuit made up of the normally closed contact SJ2-1 of the intelligent type time relay SJ2 and the AC contactor JQ connected in series, and the other is a branch circuit made up of a shunt-wound circuit of a normally closed switch K1, the normally open auxiliary contact JQ-2, and the normally open contact SJ1-1 of the intelligent type time relay, and a warning electric bell, connected in series. The device is mainly used to give an alarm and timely cut off the overpressure circuit when the voltage-regulating screen type power supply board continuously outputs the high-voltage, and effectively protects the safety of the signal equipment.
Description
Technical field
The utility model relates to the over voltage alarm protective device, especially pressure regulation screen formula power supply panel over voltage alarm device.
Background technology
Pressure regulation screen formula power supply panel is a railway signal interlocking system power supply unit, and its normal operation is the prerequisite and the guarantee of signalling arrangement safe operation.Along with the railway signal technology development, interlocking of signals equipment is integrated day by day, intelligent, and its inner electronic devices and components that adopt have strict demand to working power.Yet pressure regulation screen formula power supply panel causes exporting too high voltages easily because of designing defective under the particular power source environment, cause phenomenons such as pressure regulation motor counter-rotating as the three phase mains incorrect order, all can make pressure regulation screen formula power supply panel continue high pressure and burn out equipment, even cause fire.
The utility model content
Technical assignment of the present utility model is exactly to provide pressure regulation screen formula power supply panel over voltage alarm device at the deficiency in the above-mentioned technology.
The technical scheme that the utility model technical solution problem is adopted is:
Pressure regulation screen formula power supply panel over voltage alarm device comprises pressure regulation screen formula power supply panel TY, and described pressure regulation screen formula power supply panel TY output is every all connects with overvoltage protection relay HBH, A.C. contactor main contacts JQ-1 mutually successively; Input is connected with the public input point of three parallel branches by fuse RD; its public output point ground connection; these three branch roads; article one, be by overvoltage protection relay normally open contact HBH-1 and two intelligent time relay sjs 1; the parallel circuits that SJ2 constitutes; the branch road that is in series; article one, be the branch road of connecting and constituting by the normally closed contact SJ2-1 of intelligent time relay sj 2 and A.C. contactor JQ; also having one is by normally closed switch K1; A.C. contactor often leaves parallel circuits and the warning electric bell of auxiliary contact JQ-2 and intelligent time relay normal opened contact SJ1-1, the branch road that is in series.
Described overvoltage protection relay HBH limit value is 417V.
Described warning electric bell all adopts built-in dry cell, and it is reliable to guarantee to report to the police.
Described warning electric bell can be one, can be a plurality of parallel connections also, is placed in different night shift rooms, further guarantees in time to find fault, discharges fault.
Described pressure regulation screen formula power supply panel TY output also is provided with coupled switch K2, the terminal 1,2 of described coupled switch K2 is connected with A.C. contactor main contacts JQ-1 terminal L3, T3, the terminal 3,4 of coupled switch K2 is connected with A.C. contactor main contacts JQ-1 terminal L2, T2, and coupled switch terminal 5,6 is connected with A.C. contactor main contacts JQ-1 terminal LI, TI.
The beneficial effect that the utility model can bring is:
When the lasting output of pressure regulation screen formula power supply panel high pressure, this device can provide the emergency alarm bell sound and in time cut off overvoltage circuit, thus the safety of effective guard signal equipment.
Description of drawings
Fig. 1: the utility model electrical schematic diagram.
Embodiment
Below in conjunction with accompanying drawing the utility model is done following detailed description:
As shown in Figure 1, the utility model comprises pressure regulation screen formula power supply panel TY, comprises pressure regulation screen formula power supply panel TY, and described pressure regulation screen formula power supply panel TY output is every all connects with overvoltage protection relay HBH, A.C. contactor main contacts JQ-1 mutually successively; Input is connected with the public input point of three parallel branches by fuse RD; its public output point ground connection; these three branch roads; article one, be by overvoltage protection relay normally open contact HBH-1 and two intelligent time relay sjs 1; the parallel circuits that SJ2 constitutes; the branch road that is in series; article one, be the branch road of connecting and constituting by the normally closed contact SJ2-1 of intelligent time relay sj 2 and A.C. contactor JQ; also having one is by normally closed switch K1; A.C. contactor often leaves parallel circuits and the warning electric bell of auxiliary contact JQ-2 and intelligent time relay normal opened contact SJ1-1, the branch road that is in series.
The main contacts of pressure regulation screen formula power supply panel output incoming transport contactor; when pressure regulation is shielded formula power supply panel output voltage when the overvoltage protection relay detects above 417V; its normal opened contact HBH-1 closure; connect intelligent time relay sj 1 as described in Figure 1, the field circuit (the SJ1 delay time can be set at 20 seconds, the SJ2 delay time is set at 60 seconds) of SJ2.When if output voltage continues to exceed stop voltage above 20 seconds, intelligent time relay sj 1 excitation picks up, the closed warning circuit of connecting as shown in Figure 1 of its normal opened contact SJ1-1, and these two warning electric bells not only respectively concealed installation in two operating rooms and but also all adopt built-in dry cell can further guarantee to report to the police reliable.Manually manually step-down of staff's this moment, when output voltage was lower than limit value, overvoltage protection relay tip HBH-1 disconnected, the cancellation automatically of reporting to the police, but also cut-off switch K1 cuts off warning; If because of special circumstances, when the voltage time that makes the lasting output of pressure regulation screen formula power supply panel TY be higher than limit value surpasses 60 seconds, intelligent time relay sj 2 excitations pick up, its normally closed contact SJ2-1 disconnects, cut off the field circuit of A.C. contactor JQ, A.C. contactor main contacts JQ-1 is fallen, and this moment, A.C. contactor main contacts JQ-1 just cut off the out-put supply of pressure regulation screen formula power supply panel, and another group of A.C. contactor JQ is often left the closed warning circuit of connecting of auxiliary contact JQ-2 simultaneously.In addition, when the A.C. contactor fault falls, also can connect warning circuit by this closure of often opening auxiliary contact JQ-2, in time remind the operator on duty to break down, timely closed coupled switch K2 makes pressure regulation screen formula power supply panel without the direct out-put supply of A.C. contactor.
Claims (5)
1. formula power supply panel over voltage alarm device is shielded in pressure regulation, it is characterized in that: comprise pressure regulation screen formula power supply panel TY, described pressure regulation screen formula power supply panel TY output is every all connects with overvoltage protection relay HBH, A.C. contactor main contacts JQ-1 mutually successively; Input is connected with the public input point of three parallel branches by fuse RD; its public output point ground connection; these three branch roads; article one, be by overvoltage protection relay normally open contact HBH-1 and two intelligent time relay sjs 1; the parallel circuits that SJ2 constitutes; the branch road that is in series; article one, be the branch road of connecting and constituting by the normally closed contact SJ2-1 of intelligent time relay sj 2 and A.C. contactor JQ; also having one is by normally closed switch K1; A.C. contactor often leaves parallel circuits and the warning electric bell of auxiliary contact JQ-2 and intelligent time relay normal opened contact SJ1-1, the branch road that is in series.
2. pressure regulation screen formula power supply panel over voltage alarm device according to claim 1, it is characterized in that: described overvoltage protection relay HBH limit value is 417V.
3. pressure regulation screen formula power supply panel over voltage alarm device according to claim 1, it is characterized in that: described warning electric bell all adopts built-in dry cell.
4. pressure regulation screen formula power supply panel over voltage alarm device according to claim 1, it is characterized in that: described warning electric bell can be one, also can be a plurality of parallel connections.
5. pressure regulation screen formula power supply panel over voltage alarm device according to claim 1, it is characterized in that: described pressure regulation screen formula power supply panel TY output also is provided with coupled switch K2, and the terminal 1,2 of described coupled switch K2 is connected with A.C. contactor main contacts JQ-1 terminal L3, T3; The terminal 3,4 of coupled switch K2 is connected with A.C. contactor main contacts JQ-1 terminal L2, T2; Coupled switch terminal 5,6 is connected with A.C. contactor main contacts JQ-1 terminal LI, TI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200271385U CN201444568U (en) | 2009-06-05 | 2009-06-05 | Voltage-regulating screen type power supply board overpressure warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200271385U CN201444568U (en) | 2009-06-05 | 2009-06-05 | Voltage-regulating screen type power supply board overpressure warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201444568U true CN201444568U (en) | 2010-04-28 |
Family
ID=42549249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200271385U Expired - Fee Related CN201444568U (en) | 2009-06-05 | 2009-06-05 | Voltage-regulating screen type power supply board overpressure warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201444568U (en) |
-
2009
- 2009-06-05 CN CN2009200271385U patent/CN201444568U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20100605 |