CN110544605A - Vacuum circuit breaker running-in device and method for running-in by adopting same - Google Patents

Vacuum circuit breaker running-in device and method for running-in by adopting same Download PDF

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Publication number
CN110544605A
CN110544605A CN201910926519.5A CN201910926519A CN110544605A CN 110544605 A CN110544605 A CN 110544605A CN 201910926519 A CN201910926519 A CN 201910926519A CN 110544605 A CN110544605 A CN 110544605A
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China
Prior art keywords
normally
time relay
open point
alternating current
loop
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CN201910926519.5A
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CN110544605B (en
Inventor
邓丽军
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Dayton (chongqing) High Voltage Switch Co Ltd
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Dayton (chongqing) High Voltage Switch Co Ltd
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Priority to CN201910926519.5A priority Critical patent/CN110544605B/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H69/00Apparatus or processes for the manufacture of emergency protective devices

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Keying Circuit Devices (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

the invention discloses a running-in device of a vacuum circuit breaker, which comprises a power input loop and a contact voltage regulator arranged on the power input loop, wherein the contact voltage regulator is provided with a first live wire contact, a first zero line contact, a second live wire contact and a second zero line contact, the first live wire contact and the first zero line contact are respectively electrically connected with a live wire and a zero line of the power input loop, the second live wire contact and the second zero line contact are electrically connected with an intermediate relay, a first time relay, a second time relay, a first alternating current contactor, a second alternating current contactor and a reset mushroom button, a high-cost PLC running-in system is replaced, the running-in cycle test of a circuit breaker mechanism can be realized only by setting the delay time of the time relay and pressing the reset mushroom button until the running-in cycle test is finished, and the running-in test time and manpower and material resources are saved, the debugging worker is facilitated, and the running-in test efficiency is improved.

Description

Vacuum circuit breaker running-in device and method for running-in by adopting same
Technical Field
the invention relates to the technical field of circuit breakers, in particular to a running-in device of a vacuum circuit breaker and a running-in method adopting the device.
background
The vacuum circuit breaker is a high-voltage circuit breaker, and is named because arc extinguishing media and insulating media in contact gaps after arc extinguishing are high vacuum; the arc extinguishing device has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is relatively popularized in power distribution networks. The vacuum circuit breaker is an indoor power distribution device in a 3.6-12 kV and 50Hz three-phase alternating-current system, can be used as a protection and control device of electrical equipment in industrial and mining enterprises, power plants and transformer substations, and can also be configured in a middle cabinet, a double-layer cabinet and a fixed cabinet for controlling and protecting high-voltage electrical equipment.
the vacuum circuit breaker is used as a circuit breaker which is relatively common in a power distribution network, the production and manufacturing requirements are high, in order to ensure the reliability of the vacuum circuit breaker in use, the vacuum circuit breaker needs to be subjected to various types of tests before leaving a factory, and in order to enable the test result to be more accurate, the vacuum circuit breaker needs to be subjected to running-in for a certain time. However, the conventional running-in operation is generally based on a PLC system, and the cost is high.
therefore, those skilled in the art have been devoted to developing a low-cost break-in apparatus for a vacuum circuit breaker and a method for performing break-in using the same.
Disclosure of Invention
in view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a running-in apparatus for a vacuum circuit breaker with low cost.
in order to achieve the purpose, the invention provides a running-in device of a vacuum circuit breaker, which comprises a power input loop and a contact type voltage regulator arranged on the power input loop, wherein the contact type voltage regulator is provided with a first live wire contact, a first zero line contact, a second live wire contact and a second zero line contact, the first live wire contact and the first zero line contact are respectively and electrically connected with a live wire and a zero line of the power input loop, and the second live wire contact and the second zero line contact are electrically connected with an intermediate relay, a first time relay, a second time relay, a first alternating current contactor, a second alternating current contactor and a reset mushroom button;
the first intermediate relay is provided with a first intermediate relay normally-open point and a first intermediate relay coil;
The second intermediate relay is provided with a second intermediate relay normally-open point and a second intermediate relay coil;
the first time relay is provided with a first time relay first normally-on point, a first time relay second normally-on point and a first time relay coil;
the second time relay is provided with a second time relay first normally-closed point, a second time relay second normally-open point and a second time relay coil;
the first alternating current contactor is provided with a first alternating current contactor normally-open point and a first alternating current contactor coil;
the second alternating current contactor is provided with a second alternating current contactor normally-open point and a second alternating current contactor coil;
The first normally closed point of the second time relay is connected with the normally open point of the second intermediate relay in series, one end of the first normally closed point of the second time relay is connected with the second live wire contact, and one end of the normally open point of the second intermediate relay is connected with the second zero line contact;
two ends of the normally-open point of the first alternating current contactor are respectively connected with the second live wire contact and the second zero line contact;
two ends of the normally-open point of the second alternating current contactor are respectively connected with the second live wire contact and the second zero line contact;
two ends of the normally-open point of the first intermediate relay are respectively connected with the second live wire contact and the second zero line contact;
two ends of the first time relay coil are respectively connected with the second live wire contact and the second zero line contact;
two ends of the first intermediate relay coil are respectively connected with the second live wire contact and the second zero line contact;
the first time relay first normally open point is connected with the first alternating current contactor coil in series, one end of the first time relay first normally open point is connected with the second live wire contact, and one end of the first alternating current contactor coil is connected with the second zero line contact;
the second normally open point of the first time relay is connected with the second alternating current contactor coil in series, one end of the second normally open point of the first time relay is connected with the second live wire contact, and one end of the second alternating current contactor coil is connected with the second zero line contact;
The second time relay coil is connected with a second intermediate relay coil in parallel and then connected with the reset mushroom button in series, one end of the reset mushroom button is connected with the second live wire contact, and one end of the second time relay coil and one end of the second intermediate relay coil are both connected with the second zero line contact;
and one end of a second normally-on point of the second time relay is connected with the second live wire contact, and the other end of the second time relay is connected with the second zero line contact.
And a first indicator light is also connected in series between the second normally open point of the second time relay and the second zero line contact, and a second indicator light is also connected in parallel between one end of the second time relay coil and the second intermediate relay coil.
and the second live wire contact and the second zero line contact are also respectively connected with two ends of a voltmeter.
a second fuse is further arranged between the first normally-closed point of the second time relay and the second live wire contact, a third fuse is further arranged between the normally-open point of the first alternating current contactor and the second live wire contact, a fourth fuse is further arranged between the normally-open point of the second alternating current contactor and the second live wire contact, and a fifth fuse is further arranged between the normally-open point of the first intermediate relay and the second live wire contact;
Second fuse, third fuse, fourth fuse and fifth fuse, first time relay coil, first intermediate relay coil, the first normal open point of first time relay, the normal open point of first time relay second, reset mushroom button and the second time relay second normal open point's one end connect in parallel after through a first fuse with second live wire contact is connected.
and a button switch is also connected in series between the first normally closed point of the second time relay and the normally open point of the second intermediate relay, and the button switch is normally closed.
the invention also provides a running-in method of the running-in device of the vacuum circuit breaker, wherein a loop where the first normally-closed point of the second time relay and the normally-open point of the second intermediate relay are located is an energy storage loop;
setting a loop where the normally open point of the first alternating current contactor is located as a closing loop;
setting a loop where the normally-open point of the second alternating current contactor is located as a brake-separating loop;
setting a loop in which the normally open point of the first intermediate relay is located as a closed loop;
Setting a loop in which the first time relay coil and the first intermediate relay coil are positioned as an energy storage signal acquisition loop;
Setting a first normally-open point of the first time relay and a loop where a first alternating current contactor coil is located as a closing time control loop;
setting a second normally-on point of the first time relay and a loop where a second alternating current contactor coil is located as a brake-off time control loop;
setting the reset mushroom button, a second time relay coil, a second intermediate relay coil, a second normally-on point of a second time relay, a first indicator light and a second indicator light as a circuit breaker running-in total time control loop;
the method comprises the following steps:
a. setting the total running-in time of the second time relay to be T1, the time of the closing delay of the first time relay to be T2, and the time of the opening delay of the first time relay to be T3;
b. The reset mushroom button is pressed down and started, the second time relay is electrified to start timing, the second indicator lamp is lightened, meanwhile, the coil of the second intermediate relay is electrified to enable the normally open point of the second intermediate relay to be closed, and the energy storage loop is electrified to work normally;
c. after the energy storage of the energy storage loop is finished, the energy storage signal acquisition loop is electrified and sends an energy storage finishing signal, a first time relay coil and a first intermediate relay coil are electrified, the normally open point of the first intermediate relay is changed into normally closed, the locking loop is electrified, the closing timing is started, when the closing time reaches a set value, the first normally open point of the first time relay is changed into normally closed, a first alternating current contactor coil is electrified, the closing time control loop is electrified and works, meanwhile, the normally open point of the first alternating current contactor is enabled to be normally closed, the closing loop is electrified and works, and the breaker is closed;
d. when the time of the first time relay opening delay is reached, the second normally open point of the first time relay is changed into normally closed, the opening time control loop is electrified to work, the coil of the second alternating current contactor is electrified to enable the normally open point of the second alternating current contactor to be changed into normally closed, the opening loop is electrified to work, the breaker is opened, and the running-in operation is completed.
The invention has the beneficial effects that: the invention relates to a running-in device of a vacuum circuit breaker, which comprises a power input loop and a contact type voltage regulator arranged on the power input loop, wherein the contact type voltage regulator is provided with a first live wire contact, a first zero line contact, a second live wire contact and a second zero line contact, the first live wire contact and the first zero line contact are respectively and electrically connected with a live wire and a zero line of the power input loop, the second live wire contact and the second zero line contact are electrically connected with an intermediate relay, a first time relay, a second time relay, a first alternating current contactor, a second alternating current contactor and a reset mushroom button, a high-cost PLC running-in system is replaced, the running-in cycle test of a circuit breaker operating mechanism can be realized only by setting the delay time of the time relay and pressing the reset mushroom button until the running-in cycle test is finished, the running-in test time and manpower and material resources are saved, and debugging workers are facilitated, the running-in test efficiency is improved.
Drawings
fig. 1 is a schematic diagram of the circuit configuration of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
as shown in fig. 1, a running-in device of a vacuum circuit breaker comprises a power input loop and a contact voltage regulator T arranged on the power input loop, wherein the contact voltage regulator T is provided with a first live wire contact L1, a first zero line contact N1, a second live wire contact L2 and a second zero line contact N2, the first live wire contact L1 and the first zero line contact N1 are respectively electrically connected with a live wire and a zero line of the power input loop, and the second live wire contact L2 and the second zero line contact N2 are electrically connected with an intermediate relay, a first time relay, a second time relay, a first alternating current contactor, a second alternating current contactor and a reset mushroom button SBS;
the first intermediate relay is provided with a first intermediate relay normally-open point KA1-1 and a first intermediate relay coil KA 1-2;
the second intermediate relay is provided with a second intermediate relay normally-open point KA2-1 and a second intermediate relay coil KA 2-2;
the first time relay is provided with a first time relay first normal-open point KT1-1, a first time relay second normal-open point KT1-2 and a first time relay coil KT 1-3;
the second time relay is provided with a second time relay first normally-closed point KT2-1, a second time relay second normally-opened point KT2-2 and a second time relay coil KT 2-3;
the first alternating current contactor is provided with a first alternating current contactor normally-open point KM1-1 and a first alternating current contactor coil KM 1-2;
the second alternating current contactor is provided with a second alternating current contactor normally-open point KM2-1 and a second alternating current contactor coil KM 2-2;
a first normally-closed point KT2-1 of the second time relay is connected with a normally-open point KA2-1 of the second intermediate relay in series, one end of the first normally-closed point KT2-1 of the second time relay is connected with a second live wire contact L2, and one end of the normally-open point KA2-1 of the second intermediate relay is connected with a second zero wire contact N2;
two ends of a normally-open point KM1-1 of the first alternating current contactor are respectively connected with a second live wire contact L2 and a second zero line contact N2;
two ends of a normally-open point KM2-1 of the second alternating current contactor are respectively connected with a second live wire contact L2 and a second zero line contact N2;
Two ends of a normally-open point KA1-1 of the first intermediate relay are respectively connected with a second live wire contact L2 and a second zero wire contact N2;
two ends of a first time relay coil KT1-3 are respectively connected with a second live wire contact L2 and a second zero wire contact N2;
Two ends of the first intermediate relay coil KA1-2 are respectively connected with the second live wire contact L2 and the second zero wire contact N2;
a first time relay first normally-open point KT1-1 is connected with a first alternating current contactor coil KM1-2 in series, one end of the first time relay first normally-open point KT1-1 is connected with a second live wire contact L2, and one end of the first alternating current contactor coil KM1-2 is connected with a second zero wire contact N2;
a second normally-open point KT1-2 of the first time relay is connected with a second alternating current contactor coil KM2-2 in series, one end of the second normally-open point KT1-2 of the first time relay is connected with a second live wire contact L2, and one end of the second alternating current contactor coil KM2-2 is connected with a second zero line contact N2;
A second time relay coil KT2-3 is connected in parallel with a second intermediate relay coil KA2-2 and then connected in series with a reset mushroom button SBS, one end of the reset mushroom button SBS is connected with a second live wire contact L2, and one end of the second time relay coil KT2-3 and one end of the second intermediate relay coil KA2-2 are both connected with a second zero line contact N2;
One end of a second normally-open point KT2-2 of the second time relay is connected with a second live wire contact L2, and the other end is connected with a second neutral wire contact N2.
A first indicator lamp HG1 is further connected in series between a second normally-open point KT2-2 of the second time relay and the second neutral wire contact N2, and a second indicator lamp HR1 is further connected in parallel between one end of the second time relay coil KT2-3 and the second intermediate relay coil KA 2-2.
the second live wire contact L2 and the second neutral wire contact N2 are also connected to two ends of a voltmeter PV, respectively, and the voltmeter PV is used for monitoring the operating voltage of the whole device and monitoring the operating state.
A second fuse 2FU is further arranged between a first normally-closed point KT2-1 of the second time relay and a second live wire contact L2, a third fuse 3FU is further arranged between a first alternating current contactor normally-open point KM1-1 and a second live wire contact L2, a fourth fuse 4FU is further arranged between a second alternating current contactor normally-open point KM2-1 and a second live wire contact L2, a fifth fuse FU 5FU is further arranged between a first intermediate relay normally-open point KA1-1 and a second live wire contact L2, and the fuses provide overload protection for the circuit.
The fuse comprises a second fuse 2FU, a third fuse 3FU, a fourth fuse 4FU, a fifth fuse 5FU, a first time relay coil KT1-3, a first intermediate relay coil KA1-2, a first time relay first normally-open point KT1-1, a first time relay second normally-open point KT1-2, a reset mushroom button SBS and a second time relay second normally-open point KT2-2, wherein one end of each of the first fuse 1FU and the second fuse L2 is connected in parallel and then connected with each other through a first fuse 1 FU.
a button switch SA is also connected in series between the first normally-closed point KT2-1 of the second time relay and the normally-open point KA2-1 of the second intermediate relay, and the button switch SA is normally closed.
a method for running-in the running-in device of the vacuum circuit breaker comprises the steps that a loop where a first normally-closed point KT2-1 of a second time relay and a normally-open point KA2-1 of a second intermediate relay are located is set as an energy storage loop;
setting a loop in which a normally-open point KM1-1 of a first alternating current contactor is located as a closing loop;
setting a loop in which a normally-open point KM2-1 of the second alternating current contactor is located as a brake-separating loop;
setting a loop where a first intermediate relay normally-open point KA1-1 is located as a locking loop;
Setting a loop in which a first time relay coil KT1-3 and a first intermediate relay coil KA1-2 are located as an energy storage signal acquisition loop;
setting a loop in which a first normally-open point KT1-1 of a first time relay and a first alternating current contactor coil KM1-2 are located as a closing time control loop;
setting a loop in which a second normally-open point KT1-2 of the first time relay and a coil KM2-2 of the second alternating current contactor are located as a brake-separating time control loop;
a reset mushroom button SBS, a second time relay coil KT2-3, a second intermediate relay coil KA2-2, a second time relay second normally-open point KT2-2, a first indicator lamp HG1 and a second indicator lamp HR1 are set as a circuit breaker running-in total time control loop;
The method comprises the following steps:
a. Setting the total running-in time of the second time relay as T1, the time of the first time relay closing delay as T2, and the time of the first time relay opening delay as T3;
b. when the SBS is pressed down to start the reset mushroom button, the second time relay is electrified to start timing, the second indicator lamp HR1 is lightened, and meanwhile, the coil KA2-2 of the second intermediate relay is electrified to enable the normally-open point KA2-1 of the second intermediate relay to be closed, and the energy storage loop is electrified to normally work;
c. after the energy storage of the energy storage loop is finished, the energy storage signal acquisition loop is powered on and sends an energy storage finishing signal, a first time relay coil KT1-3 and a first intermediate relay coil KA1-2 are powered on, a first intermediate relay normally-open point KA1-1 is switched to be normally closed, a locking loop is powered on, the closing timing is started, when the closing time reaches a set value T2, the first time relay normally-open point KT1-1 is switched to be normally closed, a first alternating current contactor coil KM1-2 is powered on, the closing time control loop is powered on to work, meanwhile, the first alternating current contactor normally-open point KM1-1 is enabled to be normally closed, the closing loop is powered on to work, and the breaker is closed;
d. when the time T3 of the first time relay opening delay is reached, the second normally-open point KT1-2 of the first time relay becomes normally closed, the opening time control loop is electrified to work, the second alternating current contactor coil KM2-2 is electrified to enable the normally-open point KM2-1 of the second alternating current contactor to become normally closed, the opening loop is electrified to work, the breaker is opened, and the running-in operation is completed.
the device and the method replace a high-cost PLC running-in system, and the running-in cycle test of the circuit breaker operating mechanism can be realized only by setting the delay time of the time relay and pressing the reset mushroom button until the running-in cycle test is finished, so that the running-in test time and manpower and material resources are saved, debugging workers are facilitated, and the running-in test efficiency is improved.
the foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (6)

1. the utility model provides a vacuum circuit breaker running-in device which characterized by: the power supply comprises a power input loop and a contact type voltage regulator (T) arranged on the power input loop, wherein the contact type voltage regulator (T) is provided with a first live wire contact (L1), a first zero line contact (N1), a second live wire contact (L2) and a second zero line contact (N2), the first live wire contact (L1) and the first zero line contact (N1) are respectively and electrically connected with a live wire and a zero line of the power input loop, and the second live wire contact (L2) and the second zero line contact (N2) are electrically connected with an intermediate relay, a first time relay, a second time relay, a first alternating current contactor, a second alternating current contactor and a reset mushroom button (SBS);
The first intermediate relay is provided with a first intermediate relay normally-open point (KA 1-1) and a first intermediate relay coil (KA 1-2);
The second intermediate relay is provided with a second intermediate relay normally-open point (KA 2-1) and a second intermediate relay coil (KA 2-2);
The first time relay is provided with a first time relay first normally-open point (KT 1-1), a first time relay second normally-open point (KT 1-2) and a first time relay coil (KT 1-3);
the second time relay is provided with a second time relay first normally-closed point (KT 2-1), a second time relay second normally-open point (KT 2-2) and a second time relay coil (KT 2-3);
the first alternating current contactor is provided with a first alternating current contactor normally-open point (KM 1-1) and a first alternating current contactor coil (KM 1-2);
The second alternating current contactor is provided with a second alternating current contactor normally-open point (KM 2-1) and a second alternating current contactor coil (KM 2-2);
the second time relay first normally-closed point (KT 2-1) is connected with the second intermediate relay normally-open point (KA 2-1) in series, one end of the second time relay first normally-closed point (KT 2-1) is connected with the second live wire contact (L2), and one end of the second intermediate relay normally-open point (KA 2-1) is connected with the second neutral wire contact (N2);
The two ends of the normally-open point (KM 1-1) of the first alternating current contactor are respectively connected with the second live contact (L2) and the second zero line contact (N2);
the two ends of the normally-open point (KM 2-1) of the second alternating current contactor are respectively connected with the second live contact (L2) and the second zero line contact (N2);
two ends of the normally-open point (KA 1-1) of the first intermediate relay are respectively connected with the second live contact (L2) and the second zero line contact (N2);
two ends of the first time relay coil (KT 1-3) are respectively connected with the second live wire contact (L2) and the second zero wire contact (N2);
two ends of the first intermediate relay coil (KA 1-2) are respectively connected with the second live wire contact (L2) and the second zero wire contact (N2);
the first time relay first normally-open point (KT 1-1) is connected with the first alternating current contactor coil (KM 1-2) in series, one end of the first time relay first normally-open point (KT 1-1) is connected with the second live wire contact (L2), and one end of the first alternating current contactor coil (KM 1-2) is connected with the second zero wire contact (N2);
the first time relay second normally-open point (KT 1-2) is connected with the second alternating current contactor coil (KM 2-2) in series, one end of the first time relay second normally-open point (KT 1-2) is connected with the second live wire contact (L2), and one end of the second alternating current contactor coil (KM 2-2) is connected with the second neutral wire contact (N2);
the second time relay coil (KT 2-3) is connected with the second intermediate relay coil (KA 2-2) in parallel and then connected with the reset mushroom button (SBS) in series, one end of the reset mushroom button (SBS) is connected with the second live wire contact (L2), and one end of the second time relay coil (KT 2-3) and one end of the second intermediate relay coil (KA 2-2) are both connected with the second zero line contact (N2);
one end of a second normally-open point (KT 2-2) of the second time relay is connected with the second live wire contact (L2), and the other end of the second time relay is connected with the second neutral wire contact (N2).
2. a vacuum interrupter break-in device according to claim 1, characterized by: the second time relay is characterized in that a first indicator lamp (HG 1) is further connected in series between a second normally-open point (KT 2-2) of the second time relay and the second zero line contact (N2), and a second indicator lamp (HR 1) is further connected in parallel between one end of the second time relay coil (KT 2-3) and the second intermediate relay coil (KA 2-2).
3. a vacuum interrupter break-in device according to claim 2, characterized in that: the second live wire contact (L2) and the second neutral wire contact (N2) are also respectively connected with two ends of a voltmeter (PV).
4. a breaking-in device for vacuum circuit breaker according to claim 1 or 2, characterized in that: a second fuse (2 FU) is further arranged between the first normally-closed point (KT 2-1) of the second time relay and the second live wire contact (L2), a third fuse (3 FU) is further arranged between the normally-open point (KM 1-1) of the first alternating current contactor and the second live wire contact (L2), a fourth fuse (4 FU) is further arranged between the normally-open point (KM 2-1) of the second alternating current contactor and the second live wire contact (L2), and a fifth fuse (5 FU) is further arranged between the normally-open point (KA 1-1) of the first intermediate relay and the second live wire contact (L2);
the fuse comprises a second fuse (2 FU), a third fuse (3 FU), a fourth fuse (4 FU) and a fifth fuse (5 FU), a first time relay coil (KT 1-3), a first intermediate relay coil (KA 1-2), a first time relay first normal open point (KT 1-1), a first time relay second normal open point (KT 1-2), a reset mushroom button (SBS) and one end of a second time relay second normal open point (KT 2-2) are connected in parallel and then connected with a second live wire contact (L2) through a first fuse (FU 1 FU).
5. A breaking-in device for vacuum circuit breaker according to claim 1 or 2, characterized in that: and a button Switch (SA) is also connected in series between the first normally-closed point (KT 2-1) of the second time relay and the normally-open point (KA 2-1) of the second intermediate relay, and the button Switch (SA) is normally closed.
6. a method of breaking-in using the breaking-in apparatus of vacuum circuit breaker as claimed in any one of claims 2-5, characterized by: setting a loop in which a first normally-closed point (KT 2-1) of the second time relay and a normally-open point (KA 2-1) of the second intermediate relay are located as an energy storage loop;
setting a loop in which a normally-open point (KM 1-1) of the first alternating current contactor is located as a closing loop;
Setting a loop in which the normally-open point (KM 2-1) of the second alternating current contactor is located as a brake-off loop;
setting a loop where the normally open point (KA 1-1) of the first intermediate relay is located as a locking loop;
setting a loop in which the first time relay coil (KT 1-3) and the first intermediate relay coil (KA 1-2) are located as an energy storage signal acquisition loop;
Setting a loop in which a first normally-open point (KT 1-1) of the first time relay and a first alternating current contactor coil (KM 1-2) are located as a closing time control loop;
Setting a loop in which a second normally-open point (KT 1-2) of the first time relay and a second alternating current contactor coil (KM 2-2) are located as a brake-separating time control loop;
Setting the reset mushroom button (SBS), a second time relay coil (KT 2-3), a second intermediate relay coil (KA 2-2), a second time relay second normally-open point (KT 2-2), a first indicator lamp (HG 1) and a second indicator lamp (HR 1) as a circuit breaker running-in total time control loop;
the method comprises the following steps:
a. Setting the total running-in time of the second time relay to be T1, the time of the closing delay of the first time relay to be T2, and the time of the opening delay of the first time relay to be T3;
b. the reset mushroom button (SBS) is pressed down and started, the second time relay is electrified, timing is started, the second indicator lamp (HR 1) is lightened, meanwhile, the second intermediate relay coil (KA 2-2) is electrified, the normally-open point (KA 2-1) of the second intermediate relay is closed, and the energy storage loop is electrified and works normally;
c. after the energy storage of the energy storage loop is finished, the energy storage signal acquisition loop is electrified and sends an energy storage finishing signal, a first time relay coil (KT 1-3) and a first intermediate relay coil (KA 1-2) are electrified, a normally-open point (KA 1-1) of the first intermediate relay is changed into normally-closed, a locking loop is electrified, closing timing is started, when closing time reaches a set value T2, a first normally-open point (KT 1-1) of the first time relay is changed into normally-closed, a first alternating current contactor coil (KM 1-2) is electrified, a closing time control loop is electrified and works, and meanwhile, a normally-open point (KM 1-1) of the first alternating current contactor is enabled to be normally-closed, a closing loop is electrified and works, and a breaker is;
d. When the time T3 of the first time relay opening delay is reached, a second normally-open point (KT 1-2) of the first time relay becomes normally closed, the opening time control loop is electrified to work, a second alternating current contactor coil (KM 2-2) is electrified to enable the second alternating current contactor normally-open point (KM 2-1) to become normally closed, the opening loop is electrified to work, the breaker is opened, and the running-in operation is completed.
CN201910926519.5A 2019-09-27 2019-09-27 Running-in device of vacuum circuit breaker and running-in method adopting same Active CN110544605B (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1832887U (en) * 1960-07-28 1961-06-15 Licentia Gmbh TIME RELAY.
BE896788A (en) * 1983-05-19 1983-09-16 Bassani Spa Differential electro-thermic circuit breaker for individual appliances - has a double compartment housing for relay and sensing coil and top fitted inlet socket and test button
JPH08212880A (en) * 1995-02-09 1996-08-20 Meidensha Corp Control circuit for circuit breaker
CN202524282U (en) * 2012-05-09 2012-11-07 黑河电业局 Device for preventing frequency converter from power shaking
CN204706521U (en) * 2015-06-19 2015-10-14 西安科技大学 A kind of breaker operator circuit
KR20180110532A (en) * 2017-03-29 2018-10-10 엘에스산전 주식회사 Electric interlock circuit for circuit breaker
US10340678B1 (en) * 2018-04-23 2019-07-02 Richard W. Sorenson Electronic circuit breaker with physical open-contact construction and fail-safe protection
CN209326954U (en) * 2019-01-04 2019-08-30 河南华盛隆源电气有限公司 A kind of breaker operation mechanism running-in test system
CN210805643U (en) * 2019-09-27 2020-06-19 戴顿(重庆)高压开关有限公司 Vacuum circuit breaker running-in device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1832887U (en) * 1960-07-28 1961-06-15 Licentia Gmbh TIME RELAY.
BE896788A (en) * 1983-05-19 1983-09-16 Bassani Spa Differential electro-thermic circuit breaker for individual appliances - has a double compartment housing for relay and sensing coil and top fitted inlet socket and test button
JPH08212880A (en) * 1995-02-09 1996-08-20 Meidensha Corp Control circuit for circuit breaker
CN202524282U (en) * 2012-05-09 2012-11-07 黑河电业局 Device for preventing frequency converter from power shaking
CN204706521U (en) * 2015-06-19 2015-10-14 西安科技大学 A kind of breaker operator circuit
KR20180110532A (en) * 2017-03-29 2018-10-10 엘에스산전 주식회사 Electric interlock circuit for circuit breaker
US10340678B1 (en) * 2018-04-23 2019-07-02 Richard W. Sorenson Electronic circuit breaker with physical open-contact construction and fail-safe protection
CN209326954U (en) * 2019-01-04 2019-08-30 河南华盛隆源电气有限公司 A kind of breaker operation mechanism running-in test system
CN210805643U (en) * 2019-09-27 2020-06-19 戴顿(重庆)高压开关有限公司 Vacuum circuit breaker running-in device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
梁根生;秦新疆;: "漏电保护器工作原理及故障处理", 中国设备工程, no. 03 *

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