CN109920697B - Electric loop for controlling action of permanent magnetic mechanism breaker - Google Patents
Electric loop for controlling action of permanent magnetic mechanism breaker Download PDFInfo
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- CN109920697B CN109920697B CN201910237875.6A CN201910237875A CN109920697B CN 109920697 B CN109920697 B CN 109920697B CN 201910237875 A CN201910237875 A CN 201910237875A CN 109920697 B CN109920697 B CN 109920697B
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Abstract
The invention relates to an electric loop for controlling the action of a permanent magnet mechanism breaker, which comprises a closing button SB1, an opening button SB2, a closing relay KM1, an opening relay KM2, relays KA1, KA2, KA3 and an energy storage lamp circuit VD5, wherein one end of the closing relay KM1 is grounded, the other end of the closing relay KM1 is connected with a closing button SB1, a capacitor C3 is connected in parallel with the two ends of the closing relay KM1, and a resistor R4 is connected between a normally closed contact KA1-1 of the relay KA1 and the energy storage lamp circuit VD5 in series. The rectifying device is connected in parallel with a normally closed contact KA1-1 of the relay KA1 and connected with two ends of the energy storage lamp circuit VD5 in series, the rectifying device is connected with a transformer, and the transformer is connected with a power supply U. The electric loop for controlling the action of the permanent magnetic mechanism circuit breaker improves the safety, reliability and economy of a power supply system, protects the safety of personnel and equipment, and reduces the power consumption of the permanent magnetic mechanism circuit breaker.
Description
Technical Field
The invention relates to the field of electric appliance control, in particular to an electric loop of a permanent magnet mechanism breaker with a corresponding voltage class, which is applied to a power grid for receiving and distributing electric energy.
Background
The general mining and mining explosion-proof switch cabinets of the coal mine feed system need users to frequently operate an arc transformer, start a high-voltage motor, frequently operate electrical equipment and the like, but after a closing coil or an opening coil of the existing circuit breaker loses power, the speed and the reliability of closing and opening are influenced due to insufficient current, the safety of a power supply system is influenced, and potential safety hazards are caused to personnel and equipment.
Disclosure of Invention
The invention aims to provide an electric loop for controlling the action of a permanent magnetic mechanism breaker, which improves the safety, reliability and economy of a power supply system, protects the safety of personnel and equipment, reduces the power consumption of the permanent magnetic mechanism breaker and prolongs the service life.
The technical scheme of the invention is as follows: an electric loop for controlling the action of a permanent magnetic mechanism breaker comprises a closing coil YC and an opening coil YT of the breaker, and further comprises a closing button SB, an opening button SB, a closing relay KM, an opening relay KM, relays KA, a current limiting resistor R, an isolation diode VD, a capacitor C, a resistor R and an energy storage lamp circuit VD, wherein one end of the closing relay KM is grounded, the other end of the closing relay KM is connected with the closing button SB, the capacitor C is connected with two ends of the closing relay KM in parallel, the relay KA, the opening relay KM and the capacitor C are connected with one end grounded, the other end of the diode VD is connected with a normally closed contact KM-2 of the opening button SB and the closing relay KM in series, the cathode of the diode VD is connected with the anode of the relay KA, the other end of the relay KA is grounded, the normally closed contact of the relay KA is connected with, the positive electrode of a capacitor C5 is connected with the negative electrode of a diode VD7, the negative electrode is grounded, a diode VD6 is connected with the capacitor C5 in parallel, a power supply U is connected with a switching power supply S, a normally closed contact KM2-1 of a relay KA2 and a normally open contact KA3-2 of the relay KA3 are connected between the power supply U and the switching power supply S, the negative electrode of the switching power supply is grounded, the positive electrode is connected with a resistor R1, diodes VD1 and VD3 in series, a normally open contact KM2-1 of a relay KM2 and a separating brake coil YT in series, the other end of the separating brake coil YT is grounded, one end of the closing coil YC is grounded, the other end of the closing coil YC is connected with a normally open contact KM 24-1 of a relay KM1 and a diode VD2 in series, the positive electrode of a diode VD2 is connected between diodes VD 9 and VD3, a resistor R2 and a relay KA1 are connected with the two ends of a resistor R1 in series and, the resistor R3 is connected with the diode VD4 in series, one end of the resistor R3 is connected between the resistor R1 and the positive electrode of the switch power supply, the negative electrode of the diode VD4 is connected with the positive electrode of the capacitor C4, the normally closed contact KA1-1 of the relay KA1 is connected with the energy storage lamp circuit VD5 in series and connected with the two ends of the relay KA3 in series, the rectifying device is connected with the two ends of the normally closed contact KA1-1 of the relay KA1 in series and connected with the energy storage lamp circuit VD5 in series, the rectifying device is connected with the transformer, and the transformer is.
Preferably, a resistor R4 is connected in series between the normally closed contact KA1-1 of the relay KA1 and the energy storage lamp circuit VD 5.
The electric loop for controlling the action of the permanent magnetic mechanism circuit breaker can still keep the circuit breaker at the switching-on position after the switching-on coil of the circuit breaker loses power, the switching-off speed is high when the circuit is switched off, and the safety and the reliability of a power supply system are ensured.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The technical scheme of the electric circuit for controlling the action of the permanent magnetic mechanism circuit breaker is further described in the following with the accompanying drawings:
as shown in figure 1, an electric loop for controlling the action of a permanent magnetic mechanism breaker comprises a closing coil YC and an opening coil YT of the breaker, and further comprises a closing button SB, an opening button SB, a closing relay KM, an opening relay KM, relays KA, a current limiting resistor R, an isolation diode VD, capacitors C, a resistor R and an energy storage lamp circuit VD, wherein one end of the closing relay KM is grounded, the other end of the closing relay KM is connected with the closing button SB, the capacitors C are connected at two ends of the closing relay KM in parallel, the relays KA, KM and C are connected with one end grounded, the other end of the relays is connected with a normally closed contact KM-2 of the opening button SB and the closing relay KM in series, the anode of the diode VD is connected with one end of the relay KA, the other end of the relay KA is grounded, the normally closed contact of the relay KA is connected at two ends of the normally closed contact KM, the positive electrode of a capacitor C5 is connected with the negative electrode of a diode VD7, the negative electrode is grounded, a diode VD6 is connected with the capacitor C5 in parallel, a power supply U is connected with a switching power supply S, a normally closed contact KM2-1 of a relay KA2 and a normally open contact KA3-2 of the relay KA3 are connected between the power supply U and the switching power supply S, the negative electrode of the switching power supply is grounded, the positive electrode is connected with a resistor R1, diodes VD1 and VD3 in series, a normally open contact KM2-1 of a relay KM2 and a separating brake coil YT in series, the other end of the separating brake coil YT is grounded, one end of the closing coil YC is grounded, the other end of the closing coil YC is connected with a normally open contact KM 24-1 of a relay KM1 and a diode VD2 in series, the positive electrode of a diode VD2 is connected between diodes VD 9 and VD3, a resistor R2 and a relay KA1 are connected with the two ends of a resistor R1 in series and, the resistor R3 and the diode VD4 are connected in series, one end of the resistor R3 is connected between the resistor R1 and the positive electrode of the switch power supply, the negative electrode of the diode VD4 is connected with the positive electrode of the capacitor C4, the normally closed contact KA1-1 of the relay KA1 is connected in series with the energy storage lamp circuit VD5 and connected with the two ends of the relay KA3, and the resistor R4 is connected in series between the normally closed contact KA1-1 of the relay KA1 and the energy storage lamp circuit VD 5. The rectifying device is connected in parallel with a normally closed contact KA1-1 of the relay KA1 and connected with two ends of the energy storage lamp circuit VD5 in series, the rectifying device is connected with a transformer, and the transformer is connected with a power supply U.
In specific implementation, the electrical control working principle is as shown in fig. 1, and a switching-on control process when 100VAC becomes 158 VDC: when a power supply U is connected, a switching power supply S changes 100VAC into 158VDC, one path charges a capacitor C1 through a current-limiting resistor R1 and an isolation diode VD1, the other path also charges a capacitor C1 through a resistor R2, a relay KA1 and a diode VD1, when the voltage is charged to about 150VDC, the relay KA1 stops working, a KA1 normally-closed contact KA1-2 is connected with a closing circuit and a KA1 normally-closed contact KA1-1 is connected with an energy storage lamp circuit VD5, at the moment, when the breaker is closed, a closing button SB1 is pressed, a closing relay KM1 acts, a normally-open contact KM1-1 is closed, the capacitor C1 releases electric energy to a closing coil YC, a closing process is completed, and the capacitor C3 delays a certain closing time, so that reliability is guaranteed.
100VAC is changed into 158VDC time-division brake control process, a power supply U is switched on, a switching power supply S changes 100VAC into 158VDC, one path charges a capacitor C1 through a current-limiting resistor R1 and an isolation diode VD1, the second path charges a capacitor C4 through a resistor R3 and a diode VD4, the third path also charges capacitors C1 and C4 through a resistor R2, a relay KA1 and a diode VD1, when the voltage is charged to about 150VDC, the relay KA1 stops working, the KA1 normally closed contact KA1-2 is connected with a closing circuit, the KA1 normally closed contact KA1-1 is connected with the energy storage lamp circuit VD5, at the moment, when the breaker is opened, the opening button SB2 is pressed, the opening relay KM2 acts, the normally open contact KM2-1 is closed, the capacitors C1 and C4 release electric energy to the opening coil YT to complete one opening process, the capacitor C2 delays for a certain suction time to ensure reliable opening, and the capacitor C5 further ensures that the opening relay KM2 can reliably open when the voltage is reduced.
When the voltage is reduced to an undervoltage state or power is cut off, the relay KA3 stops working, the KA3 normally-closed point KA3-1 is connected with the brake separating circuit to complete the brake separating function, the KA3 normally-closed point is always connected with the brake separating circuit when the power is cut off, the capacitor C5 enables the brake separating relay KM2 to be disconnected in a certain pull-in time delay mode, therefore, the capacitor C1 is enabled to discharge to the brake separating coil YT completely, and the purpose of automatic discharging of the capacitor C1 is achieved.
The relay KA2 prevents resistors R1 and R2 from being burnt due to misoperation, and burning resistors are easily generated under two conditions;
1. the manual switching-on is not good in resetting, the switching-off is affected, if the mechanism refuses to be switched off after the protector sends a switching-off signal at a certain time, the switching-off relay KM2 is always in a working state, the capacitor C1 discharges the switching-off coil YT, and meanwhile, the power supply U charges the capacitor C1, so that the time is long, and the resistors R1 and R2 are overheated and easy to burn.
2. If the protector does not reset after the opening signal is sent out by the protector at a certain time, the manual closing is forcibly adopted, and the resistors R1 and R2 are burnt out in the same way. When misoperation occurs, the KA2 acts, the KA2-1 cuts off the power supply, and the problem that the resistors R1 and R2 are burnt due to misoperation is completely solved.
The electric loop for controlling the action of the permanent magnetic mechanism breaker is reliable in control, and the reliability of personnel and equipment is ensured.
Claims (2)
1. An electric loop for controlling the action of a permanent magnetic mechanism breaker comprises a closing coil YC and an opening coil YT of the breaker, and is characterized by further comprising a closing button SB1, an opening button SB2, a closing relay KM1, an opening relay KM2, relays KA2, a current-limiting resistor R2, an isolating diode VD2, a capacitor C2, a resistor R2 and an energy storage lamp circuit VD2, wherein one end of the closing relay KM2 is grounded, the other end of the closing button SB2 is connected with one end of the closing button SB2, the other end of the closing button SB2 is connected with a normally closed contact KM2-2 of the opening relay KM2, the capacitor C2 is connected in parallel with two ends of the closing relay KM2, one end of the capacitors C2, the opening relay KM2, the capacitors C2 and the capacitors VD2 is connected with the ground after being connected in parallel with one end of the normally closed contact KM2 of the opening button SB2 and the negative pole of the diode VD2, the, the other end of the relay KA3 is grounded, the normally closed contact of the relay KA3 is connected in parallel with the two ends of the normally closed contact KM1-2 of the opening button SB2 and the closing relay KM1, the anode of the capacitor C5 is connected with the cathode of the diode VD7, the cathode is grounded, the diode VD6 is connected in parallel with the capacitor C5, the power supply U is connected with the switching power supply S, the normally closed contact KA2-1 of the relay KA2 and the normally open contact KA3-2 of the relay KA3 are connected between the power supply U and the switching power supply S, the cathode of the switching power supply is grounded, the anode is connected in series with a resistor R1, diodes VD1 and VD3, the normally open contact KM2-1 of the opening relay KM2 and the opening coil YT, the other end of the opening coil YT is grounded, one end of the YC is grounded, the normally open contact KM1-1 of the other end of the closing coil KM1 and the diode VD1, the anode of the diode VD1 is connected in series between the diode VD1 and the, capacitors C1 and C4 are connected in parallel with two ends of a switching-off coil YT, the positive electrode of the capacitor C1 and the positive electrode of the diode VD3 are connected between diodes VD1 and VD3, a resistor R3 is connected in series with the diode VD4, one end of a resistor R3 is connected between the resistor R1 and the positive electrode of a switching power supply, the negative electrode of the diode VD4 is connected with the positive electrode of a capacitor C4, a normally closed contact KA1-1 of a relay KA1 is connected in series with an energy storage lamp circuit VD5 and connected with two ends of a relay KA3, a rectifying device is connected in parallel with two ends of a normally closed contact KA1-1 of the relay KA1 and an energy storage lamp circuit VD5 series.
2. The electric circuit for controlling the action of the permanent magnetic mechanism circuit breaker according to claim 1, characterized in that a resistor R4 is connected in series between the normally closed contact KA1-1 of the relay KA1 and the energy storage lamp circuit VD 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910237875.6A CN109920697B (en) | 2019-03-27 | 2019-03-27 | Electric loop for controlling action of permanent magnetic mechanism breaker |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910237875.6A CN109920697B (en) | 2019-03-27 | 2019-03-27 | Electric loop for controlling action of permanent magnetic mechanism breaker |
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| Publication Number | Publication Date |
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| CN109920697A CN109920697A (en) | 2019-06-21 |
| CN109920697B true CN109920697B (en) | 2021-01-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735549B (en) * | 2017-04-18 | 2020-01-07 | 徐政村 | Power switch module |
| CN110837240B (en) * | 2019-11-21 | 2021-08-03 | 通号（长沙）轨道交通控制技术有限公司 | Permanent magnet mechanism control circuit with energy storage monitoring function and control method |
| CN114184951B (en) * | 2021-12-14 | 2023-05-26 | 烟台东方威思顿电力设备有限公司 | Breaker spring operating mechanism simulation system |
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| CN102005338A (en) * | 2010-11-29 | 2011-04-06 | 南京因泰莱配电自动化设备有限公司 | Control circuit of monostable permanent magnet mechanism breaker |
| US20150014277A1 (en) * | 2013-07-15 | 2015-01-15 | Eaton Corporation | Interchangeable switching module and electrical switching apparatus including the same |
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