CN209592974U - A kind of decompression trip protection device - Google Patents
A kind of decompression trip protection device Download PDFInfo
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- CN209592974U CN209592974U CN201920282541.6U CN201920282541U CN209592974U CN 209592974 U CN209592974 U CN 209592974U CN 201920282541 U CN201920282541 U CN 201920282541U CN 209592974 U CN209592974 U CN 209592974U
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- power supply
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- switching power
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- 230000006837 decompression Effects 0.000 title claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 44
- 230000005611 electricity Effects 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 5
- 230000001934 delay Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model is a kind of decompression trip protection device; belong to high-tension switch cabinet technical field; mainly solve the problems, such as that existing vacuum circuit breaker control loop exists by property difference and lacks necessary delay comprising the high voltage control circuit containing the first secondary voltage Loss tripping power supply, the first relay；First secondary voltage Loss tripping power supply includes Switching Power Supply and the delay control circuit that is made of 555 chips and peripheral component；Switching Power Supply inlet wire side time meets AC220V, and secondary side exports 12V, and connect with delay control circuit；The output control terminal of the delay control circuit is connect with the normally opened contact of the first relay.The utility model has reliability and selectivity; it can guarantee that high voltage electric equipment can normally disconnect high pressure break-up device in a variety of different ac control power supply power loss; the advantages that realizing the loss protecting of entire control system is mainly used in the every profession and trades such as metallurgy, ore dressing, cement, chemical industry, thermal power generation.
Description
Technical field
The utility model belongs to high-tension switch cabinet technical field.High-voltage switchgear vacuum circuit breaker is used for more particularly to one kind
The decompression trip protection device of control loop.
Background technique
The vacuum circuit breaker control loop that usual high-tension switch cabinet uses does not have undervoltage trip coil, under special circumstances,
When first and second AC power source, which occurs, in high-tension switch cabinet to disappear simultaneously, breaker must trip at this time, to prevent primary power source extensive
Motor across-the-line starting, causes unexpectedly to injure to staff and equipment after multiple.But the high-tension switch cabinet of exchange control is secondary
Decompression tripping power supply, the prior art are to use capacitor, resistance, diode, these loose mail poor reliability, and lack necessary prolong
When, it cannot prevent that secondary power supply from having a power failure in short-term or voltage fluctuation causes unnecessary hang-up.
Summary of the invention
The utility model aim is provided a kind of high-tension switch cabinet and is exchanging for the above-mentioned deficiency of high-tension switch cabinet
The decompression trip protection device of the reliable disjunction vacuum circuit breaker of energy in the case where control loop decompression.
The technical solution of the utility model is: a kind of decompression trip protection device, is used for high-tension switch cabinet, high-voltage electricity
Cabinet or high voltage start cabinet, including the high voltage control circuit containing the first secondary voltage Loss tripping power supply, the first relay, feature exists
In the delays time to control that: first secondary voltage Loss tripping power supply includes Switching Power Supply and is made of 555 chips and peripheral component
Circuit；Switching Power Supply inlet wire side time meets AC220V, and secondary side exports 12V, and connect with delay control circuit；It is described to prolong
When control circuit output control terminal connect with the normally opened contact of the first relay.
The operating voltage 85V-260V of Switching Power Supply described in the technical solution of the utility model.
Delay control circuit described in the technical solution of the utility model includes 555 chips, the first, second electricity
Resistance, the first, second, third, fourth capacitor, the first, second diode, the second relay, triode, transformer and rectifier bridge；
The first resistor is in parallel with the 4th capacitor after connecting with first capacitor, and both ends are connected to the secondary side output end of Switching Power Supply
On, the tie point between first resistor and first capacitor connects 2 feet of 555 chips, 6 feet, two termination delays time to control of first capacitor
Output control terminal, the rectifier bridge of circuit；4 feet, 8 feet of 555 chip connect the secondary side output cathode end of Switching Power Supply, 1 foot,
5 feet connect the secondary side output negative pole end and ground of Switching Power Supply through the second capacitor；First, second diode, the second relay,
Triode, third capacitor, second resistance constitute control relay circuit, the normally closed touching of control the first relay of termination of relay
One end of point.
High voltage control circuit described in the technical solution of the utility model further include button switch (SB1), third,
Four, the five, the 6th diodes, breaker (QF), opening coil, 3rd resistor, the 5th capacitor, second secondary decompression tripping electricity
Source (PTZ-) and switching pressing plate (2XB)；First relay is connected in parallel on the AC220V of Switching Power Supply inlet wire side time；
Switching Power Supply is connected in parallel on after the pushbutton switch button switch (SB1), third diode, breaker (QF), opening coil concatenation
On the AC220V of inlet wire side time；Switching Power Supply inlet wire one is connected in parallel on after the 3rd resistor, the 4th diode, the 5th capacitance series
On the AC220V of side time；Between tie point and third diode and breaker (QF) between 4th diode and the 5th capacitor
Tie point between concatenate the 5th diode, second secondary decompression trip power supply (PTZ-), the normally closed touching of the first relay
Point and switching pressing plate (2XB)；Tie point and Switching Power Supply inlet wire side time between 4th diode and the 5th capacitor
It concatenates the 6th diode and the first secondary voltage Loss between one end of AC220V to trip power supply, the first secondary voltage Loss trips the defeated of power supply
The normally opened contact of the first relay of control termination out.
Triode described in the technical solution of the utility model is PNP triode；The end triode e and Switching Power Supply
Secondary side output cathode end between and contact relay and the second diode, concatenate second resistance between the end b and 555 chip, 3 foot
And first diode, the end c ground connection；Third capacitance connection is on the tie point between second resistance and first diode.
The utility model has reliability and selectivity, energy compared with prior art, by integrated circuit and delay function
Enough guarantee that high voltage electric equipment can normally disconnect high pressure break-up device in a variety of different ac control power supply power loss,
Protection staff safety, protects high-tension motor and mechanical equipment, changes the relay protective scheme of electric control system, realizes entire control
The advantages that loss protecting of system, will be widely used in the every profession and trades such as metallurgy, ore dressing, cement, chemical industry, thermal power generation.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
Fig. 2 is the first secondary voltage Loss tripping power supply PTZ in Fig. 1-Partial circuit diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Secondary voltage Loss protection is made into an apparatus module by the utility model, repertoire is brought together, and consider to increase
Add settable deferred action circuit, secondary power supply from having a power failure in short-term or voltage fluctuation causes unnecessary hang-up for preventing.
As shown in Figure 1 and Figure 2, the utility model is a kind of decompression trip protection device, is used for high-tension switch cabinet, high-voltage electricity
Cabinet or high voltage start cabinet.The utility model includes by the first relay KA1, button switch SB1, third to the 6th diode D
3, D 1, D2,1 D3, circuit breaker Q F, opening coil TQ, 3rd resistor R, the 5th capacitor C, second secondary decompression tripping power supply PTZ-, switching pressing plate 2XB and the first secondary voltage Loss trip power supply PTZ-The high voltage control circuit of composition.Wherein, first
Relay KA1 is connected in parallel on the AC220V of Switching Power Supply DW1 inlet wire side time.Button switch SB1, third diode D 3, breaker
It is connected in parallel on after QF, opening coil TQ concatenation on the AC220V of Switching Power Supply DW1 inlet wire side time.3rd resistor R, the 4th diode D
1, it is connected in parallel on the AC220V of Switching Power Supply DW1 inlet wire side time after the 5th capacitor C concatenation.4th diode D 1 and the 5th capacitor C
Between tie point and the tie point between third diode D 3 and circuit breaker Q F between concatenate the 5th diode D2, the two or two
Secondary decompression tripping power supply PTZ-, the first relay KA1 normally-closed contact and switching pressing plate 2XB.4th diode D 1 with
The 6th diode 1 is concatenated between tie point and one end of Switching Power Supply DW1 inlet wire side time AC220V between 5th capacitor C
D3 and the first secondary voltage Loss tripping power supply PTZ-, the first secondary voltage Loss tripping power supply PTZ-Output control terminal
、Connect the normally opened contact of the first relay KA1.First secondary voltage Loss tripping power supply PTZ-Including Switching Power Supply DW1 and by
The delay control circuit that 555 chips and peripheral component are constituted.The operating voltage 85V-260V of Switching Power Supply DW1, inlet wire side
Secondary to meet AC220V, secondary side exports 12V.Two delay control circuits include 555 chips, first, second resistance R1, R2, first, the
Two to the 4th capacitor C1, C2, C3, C4, first, second diode 1D1,1D2, the second relay J1, triode P1, transformer and
Rectifier bridge.Switching Power Supply DW1 anode meets the second diode 1D1 anode, first resistor R1, relay J1, the 4th capacitor C4 and 555
4 feet, 8 feet of chip.2 feet, 6 feet of another termination first capacitor C1 and 555 chips of first resistor R1.First capacitor C1 and first
Relay KA1 simultaneously connects.The Dragon Boat Festival pole the e contact relay J1 of triode P1 and the second diode 1D2 cathode.Triode P1 cathode connects
Ground.The end the b trigger electrode of triode P1 connects second resistance R2, another termination first diode 1D1 cathode of second resistance R2 and third
Capacitor C3, third capacitor C3 other end ground connection, first diode 1D1 anode connect 3 feet of 555 chips.5 feet of 555 chips connect
Two capacitor C2.1 foot of 555 chips, the 4th capacitor C4 other end, the first capacitor C1 other end are connected with rectifier bridge cathode, and
Second lower end capacitor C2 ground connection.The output control terminal of delay control circuit、Connect with the normally opened contact of the first relay KA1
It connects.
Working principle is, under high-tension switch cabinet normal operating conditions, AC220V AC power source passes through 3rd resistor R current limliting
And the 4th diode D 1 give the 5th capacitor C(storage capacitor) charge and store electric energy, the opened point closure of the first relay KA1
Be attempted by 555 chips the 2nd, 6 feet and 1 foot, 555 the 3rd foot is low level at this time, and triode P1 is PNP triode, in closing
Conjunction state, the second relay JI is attracted, and after controlling power supply AC220V AC power source power loss, the first contact relay KA1 resets,
Another 5th capacitor C powers to low capacity Switching Power Supply DW1, exports 12V power supply, opens and connect because of the first relay KA1 normally opened contact
2 feet and 1 foot both ends in 555 chips, after time TD, TD is exactly the timing or delay time of monostable circuit, it and
First resistor R1(timing resistor) with first capacitor C1(timing capacitor) value it is related: TD=1.1R1C1；First capacitor C1 is powered on
Pressure rise to > 8V when, output 3 feet be turned into Vo=O again, temporary stable state terminates, the second relay J1 close point be delayed 1-3 seconds be in close
Conjunction state, the opening coil TQ of the 5th diode D2 and the second contact relay J1 to breaker so the 5th capacitor C is powered again
Power supply, to make vacuum circuit breaker separating brake.
Claims (5)
1. a kind of decompression trip protection device is used for high-tension switch cabinet, high-voltage electricity cabinet or high voltage start cabinet, including contains the one or two
Secondary decompression tripping power supply (PTZ-), the high voltage control circuit of the first relay (KA1), it is characterised in that: described first
Secondary voltage Loss tripping power supply (PTZ-) it include Switching Power Supply (DW1) and the delay that is made of 555 chips and peripheral component
Control circuit；Switching Power Supply (DW1) inlet wire side time (、) AC220V is met, secondary side exports 12V, and controls with delay
Circuit connection processed；The delay control circuit output control terminal (、) connect with the normally opened contact of the first relay (KA1)
It connects.
2. a kind of decompression trip protection device according to claim 1, it is characterised in that: the Switching Power Supply (DW1)
Operating voltage 85V-260V.
3. a kind of decompression trip protection device according to claim 1 or 2, it is characterised in that: the delays time to control electricity
Road include 555 chips, the first, second resistance (R1, R2), the first, second, third, fourth capacitor (C1, C2, C3, C4), first,
Second diode (1D1,1D2), the second relay (J1), triode (P1), transformer and rectifier bridge；The first resistor (R1)
In parallel with the 4th capacitor (C4) after connecting with first capacitor (C1), both ends are connected to the secondary side output end of Switching Power Supply (DW1)
On, the tie point between first resistor (R1) and first capacitor (C1) connects 2 feet of 555 chips, 6 feet, and the two of first capacitor (C1)
Terminate delay control circuit output control terminal (、), rectifier bridge；4 feet, 8 feet of 555 chip connect Switching Power Supply
(DW1) secondary side output cathode end, 1 foot, 5 feet connect the secondary side output negative pole of Switching Power Supply (DW1) through the second capacitor (C2)
End and ground；First, second diode (1D1,1D2), the second relay (J1), triode (P1), third capacitor (C3),
Two resistance (R2) constitute control relay circuit, the second relay (J1) control terminal (、) meet the first relay (KA1)
Normally-closed contact one end.
4. a kind of decompression trip protection device according to claim 1 or 2, it is characterised in that: the high voltage control is returned
Road further include button switch (SB1), third, the four, the five, the 6th diodes (D 3, D 1, D2,1 D3), breaker (QF),
Opening coil (TQ), 3rd resistor (R), the 5th capacitor (C), second secondary decompression tripping power supply (PTZ-) and switching pressure
Plate (2XB)；First relay (KA1) is connected in parallel on the AC220V of Switching Power Supply (DW1) inlet wire side time；The button switch
(SB1), Switching Power Supply (DW1) inlet wire one is connected in parallel on after third diode (D 3), breaker (QF), opening coil (TQ) concatenation
On the AC220V of side time；Switching Power Supply is connected in parallel on after the 3rd resistor (R), the 4th diode (D 1), the 5th capacitor (C) concatenation
(DW1) on the AC220V of inlet wire side time；Tie point and the three or two between 4th diode (D 1) and the 5th capacitor (C)
The 5th diode (D2), second secondary decompression tripping power supply are concatenated between tie point between pole pipe (D 3) and breaker (QF)
(PTZ-), the normally-closed contact of the first relay (KA1) and switching pressing plate (2XB)；4th diode (D 1) and the
The 6th diode is concatenated between tie point and one end of Switching Power Supply (DW1) inlet wire side time AC220V between five capacitors (C)
(1 D3) and the first secondary voltage Loss tripping power supply (PTZ-), the first secondary voltage Loss tripping power supply (PTZ-) output
Control terminal (、) connect the normally opened contact of the first relay (KA1).
5. a kind of decompression trip protection device according to claim 3, it is characterised in that: the triode (P1) is
PNP triode；Between the triode end (P1) e and the secondary side output cathode end of Switching Power Supply (DW1) and connect the second relay
(J1) and the second diode (1D2) second resistance (R2) and first diode (1D1), c, are concatenated between the end b and 555 chip, 3 foot
End ground connection；Third capacitor (C3) is connected on the tie point between second resistance (R2) and first diode (1D1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282541.6U CN209592974U (en) | 2019-03-06 | 2019-03-06 | A kind of decompression trip protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920282541.6U CN209592974U (en) | 2019-03-06 | 2019-03-06 | A kind of decompression trip protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209592974U true CN209592974U (en) | 2019-11-05 |
Family
ID=68356575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920282541.6U Active CN209592974U (en) | 2019-03-06 | 2019-03-06 | A kind of decompression trip protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209592974U (en) |
-
2019
- 2019-03-06 CN CN201920282541.6U patent/CN209592974U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A voltage loss trip protection device Granted publication date: 20191105 Pledgee: Bank of China Limited Xiangyang Branch Pledgor: WORLDWIDE ELECTRIC STOCK CO.,LTD. Registration number: Y2024980020446 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |