CN217655249U - Portable simulation 10kV vacuum circuit breaker device - Google Patents

Abstract

The utility model discloses a contactor HQ, TQ, QF and QF1, the combined floodgate pilot lamp, the separating brake pilot lamp, the combined floodgate button, the separating brake button, interface socket and wiring, interface socket combined floodgate port- > HQ coil- > QF normally closed contact- > interface socket power-port constitution combined floodgate return circuit, interface socket tripping port- > TQ coil- > QF normally open contact- > interface socket power-port constitution tripping circuit, interface socket power + port- > pilot lamp- > QF1 normally open contact- > interface socket power-port constitution display circuit, interface socket power + port- > separating brake pilot lamp- > QF1 normally closed contact- > interface socket power-port constitution separated floodgate display circuit, interface socket power + port- > QF contact and TQ normally open contact- > TQ normally closed contact- > QF1 coil- > interface socket power-port constitution combined floodgate control circuit. The device mainly provides an analog device for debugging the relay protection device, reduces the action times, prolongs the mechanical life, and is small and exquisite and easy to carry.

Description

Portable simulation 10kV vacuum circuit breaker device

Technical Field

The utility model relates to a test of electric power automation device, maintenance technical field especially relate to a vacuum circuit breaker analogue means that is used for relay protection device test, maintenance, 10kV voltage class.

Background

According to the description of basic performance tests in GB/T7261-2016 basic experiment methods for relay protection and safety automatic devices, in order to ensure the safety and reliability of an electric power system, a relay protection device needs to be periodically debugged and detected, and the current method comprises the following steps: the relay protection device is directly connected with the on-site vacuum circuit breaker to carry out the functional debugging of the device. The debugging method has many disadvantages:

1. in the debugging process, the whole set of tests need to be repeated frequently, and the 10kV circuit breaker needs to be subjected to repeated tripping and closing actions, so that the service life of the circuit breaker can be shortened, and adverse effects are brought to the mechanical structure of the high-voltage circuit breaker.

2. Annual pre-test scheduled maintenance, relay protection debugging personnel and circuit breaker maintainer contend the circuit breaker simultaneously, and the staff who overhauls the circuit breaker and relay protection device debugging personnel can only overhaul the operation in turn, generally let the staff who overhauls the circuit breaker overhaul the back with the circuit breaker earlier, relay protection device debugging personnel debugs relay protection device again, have prolonged power line power off time as a result, and work efficiency is very low.

3. Because the 10kV circuit breaker is in a power-on running state, power failure is not allowed, and when a relay protection device checks and removes obstacles, the high-voltage circuit breaker in live running cannot be directly tripped.

4. When commissioning an actual circuit breaker, some other work related to the circuit breaker must be stopped, affecting the normal work of other staff.

SUMMERY OF THE UTILITY MODEL

Based on this, in order to solve above-mentioned technical problem, the utility model provides a portable 10kV vacuum circuit breaker analogue means.

The utility model discloses from the actual demand that the device debugging detected for the starting point, the state demonstration of real simulation 10kV vacuum circuit breaker divide-shut brake control circuit and divide-shut brake. The action times of the real circuit breaker are reduced, the service life of the circuit breaker is prolonged, the testing process is simple and convenient, the debugging working efficiency is improved, and the circuit breaker debugging device has wide popularization value.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a portable simulation 10kV vacuum circuit breaker device, includes but direct current contactor, standard plug interface socket DB, combined floodgate pilot lamp L1, separating brake pilot lamp L2, closing button ON, separating brake button OFF, direct current contactor has 4, is HQ, TQ, QF and QF1 respectively, but standard plug interface socket DB 301 port connects the relay protection device power +,302 port connects the relay protection device power +, 311 port connects the relay protection device closing outlet, 312 port connects the relay protection device tripping outlet, 305 port connects the hand and closes the export, 306 port connects the hand and jumps the export, but standard plug interface socket DB is the standardized interface of 10kV vacuum circuit breaker, during field debugging, can follow the plug that actually pulls out the circuit breaker joint, directly connects the plug interface socket of portable 10kV vacuum circuit breaker analogue means's standard plug interface socket has embodied very big convenience DB.

The +301 end of the power supply → QF-6 (HQ-6) → QF-4 (HQ-4) → TQ-5 → TQ-1 → QF-7 (QF 1-7) → QF-8 (QF 1-8) → power supply-302 end constitutes a switching-closing control loop. The 311 end of the closing outlet → HQ-7 → HQ-8 → QF-1 → QF-5 → power supply-302 end forms a closing loop, and the 312 end of the tripping outlet → TQ-7 → TQ-8 → QF-3 → QF-5-power supply-302 end forms a tripping loop. The +301 end of the power supply → the closing indicator light L1 → QF1-4 → QF1-6 → the power-302 end forms a closing indicating loop, and the +301 end of the power supply → the opening indicator light L2 → QF1-2 → QF1-6 → the power-302 end forms an opening indicating loop. And the switching-ON button ON is connected to the end of the manual switching-ON outlet 305 to realize a manual switching-ON simulation loop. The switching-OFF button OFF is connected to the hand tripping outlet 308 end to realize a manual tripping analog loop.

The utility model discloses the function realization explains as follows:

when relay protection device with but the standard plug interface socket DB links to each other the back, relay protection device switches out the combined floodgate instruction, and the combined floodgate return circuit switches on, the HQ coil gets electric, HQ normally open contact actuation, divide-shut brake control circuit switches on, QF with QF1 coil gets electric, QF normally open contact actuation keeps, realizes the analog action of closing a floodgate. Meanwhile, the suction of the QF1 normally open contact is kept, the closing indicating loop is conducted, the closing indicating lamp L1 is lightened, and the current breaker is in a closing state.

After the relay protection device gives a tripping instruction, the tripping circuit is conducted, the TQ coil is electrified, the TQ normally-closed contact is disconnected, the opening and closing control circuit is disconnected, the QF coil is electrified, the QF normally-closed contact is closed, the normally-open contact is disconnected, the tripping circuit is disconnected, and tripping simulation action is achieved. The QF1 coil is also powered off, the QF1 normally closed contact is closed, the trip indicating loop is conducted, the trip indicating lamp L2 is lightened, and the circuit breaker is displayed in a trip state.

When relay protection device breaks down, when opening closing instruction and separating brake instruction simultaneously, the combined floodgate circuit switches on earlier, the HQ coil is electrified, HQ normally open contact actuation, the separating closing control circuit switches on, the QF coil is electrified, QF normally open contact actuation, the tripping circuit switches on, the TQ coil is electrified, TQ normally closed contact disconnection, the separating closing control circuit disconnection, QF and QF1 coil lose the electricity, do not realize the combined floodgate action, simultaneously QF1 normally closed contact actuation, separating brake indication circuit switch on, separating brake pilot lamp L2 lights, shows that the circuit breaker is in the separating brake state, so the utility model discloses the function of preventing the mistake when having equipment trouble and jumping.

The beneficial effects of the utility model are that, built a deciliter action that can simulate 10kV vacuum circuit breaker, state display's device with relay, standard interface socket, LED display lamp, shift knob and electric wire, circuit breaker function simulation is comprehensive, has and prevents to miss and jumps the function, and the device is small and exquisite, and the debugging personnel of being convenient for carry arbitrary scene, and the interface is standardized, and is compatible strong, and the field connection is convenient, has greatly saved debugging personnel's work load. Meanwhile, the frequency of using the actual circuit breaker is reduced, the service life of the actual circuit breaker is prolonged, and meanwhile, the safety of operators and equipment is greatly guaranteed. The method is popular with a great number of power system relay protection debugging personnel, and is worth being widely popularized and used in the industry.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a block diagram of an exemplary implementation of a simulated circuit breaker device

Fig. 2 schematic diagram of a simulated circuit breaker arrangement

Detailed Description

For a better understanding of the objects, features and advantages of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings.

As shown in the attached drawing, fig. 1 is the utility model relates to a portable simulation 10kV vacuum circuit breaker device concrete implementation's structure diagram, fig. 2 is the utility model relates to a portable simulation 10kV vacuum circuit breaker device's principle schematic diagram, a portable simulation 10kV vacuum circuit breaker device comprises direct current contactor HQ, TQ, QF and QF1, combined floodgate pilot lamp L1, separating brake pilot lamp L2, closing button ON, separating brake button OFF, but plug interface socket DB of standard and connecting wire.

The ports 301, 302, 311, 312, 305 and 308 in the standard pluggable interface socket DB are the ports of a standard 10kV vacuum circuit breaker and a relay protection device. 301 is defined as power +,302 as power-, 311 as closing outlet, 312 as tripping outlet, 305 as closing and 308 as tripping.

One end QF-8 of the direct current contactor QF is connected with one end QF1-8 of the direct current contactor QF1, a common leading-out wire is used for being connected to a power supply-302 terminal of a relay protection device, the other end QF-7 of the direct current contactor QF is connected with the other end QF1-7 of the direct current contactor QF1, the other end QF-5 is connected with one end TQ-1 of a TQ normally closed contact of the direct current contactor, the other end TQ-5 is connected with one end QF-4 of a QF normally open contact of the direct current contactor and one end HQ-4 of an HQ normally open contact of the direct current contactor, the other end HQ-6 is connected with the HQ-6, and the other end QF-6 is connected with the power supply +301 terminal of the relay protection device. One end HQ-7 of the direct current contactor HQ is connected with a closing outlet 311 of the relay protection device, the other end HQ-8 of the direct current contactor HQ is connected with one end QF-1 of a normally closed contact of the direct current contactor QF, the other end QF-5 of the normally closed contact is connected with a power-end 302 of the relay protection device, one end TQ-7 of the direct current contactor TQ is connected with a tripping outlet 312 of the relay protection device through the terminal row DB, the other end TQ-8 of the direct current contactor HQ is connected with one end QF-3 of a normally open contact of the direct current contactor QF, and the other end QF-5 of the direct current contactor HQ is connected with the power-end 302 of the relay protection device. The switching-on indicating lamp L1 one end is connected in relay protection device's power + end 301, and the other end connect in direct current contactor QF1 normally open contact one end QF1-4, and other end QF1-6 connect in relay protection device's power-end 302, separating brake indicating lamp L2 one end is connected in relay protection device's power + end 301, and the other end connect in direct current contactor QF1 normally closed contact one end QF1-2, and other end QF1-6 connects in relay protection device's power-end 302. One end of the ON button is connected with a power supply + end 301 of the relay protection device, the other end of the ON button is connected with a hand-in inlet section 305 of the relay protection device, one end of the brake-off button is connected with the power supply + end 301 of the comprehensive protection device, and the other end of the ON button is connected with a hand-jumping inlet end 308 of the relay protection device.

During inspection or debugging, firstly, the leading-out plug of the relay protection device is pulled out from the actual field breaker socket, and then is inserted into the standard pluggable interface socket DB for debugging.

1. Principle of closing control

The utility model discloses in the implementation, utilize relay protection device's power, as 10kV vacuum circuit breaker analogue means's positive negative power supply, 301 connects the positive power supply, 302 connects the negative power supply, relay protection device sends closing instruction or manually presses the combined floodgate button ON, the positive power supply passes through relay protection device internal circuit and sends 311, 311 takes positive electricity- > HQ coil- > QF normally closed contact- > negative power supply 302, form the return circuit, the HQ coil is electrified, HQ normally open contact actuation, make positive power supply 301- > HQ normally open contact- > QF coil- > negative power supply 302 form the return circuit, make positive power supply 301- > HQ normally open contact- > TQ normally closed contact- > QF coil- > negative power supply 302 form the return circuit, the QF coil is electrified, QF normally open contact actuation keeps, make positive power supply 301- > QF normally open contact- > TQ normally closed contact- > QF1 coil form the return circuit, make QF1 normally open contact keep, the closed contact gets the electric switch, QF normally open contact turns off the indicating switch, the indicating switch indicates that the circuit indicates that the lamp breaks off 1L 1, the positive power supply stops, make the circuit, make the switch ON the switch off, the circuit indicates that the lamp stops.

2. Principle of opening control

The utility model discloses in the concrete implementation, utilize relay protection device's power, as 10kV vacuum circuit breaker analogue means's positive negative power supply, 301 connects the positive power supply, 302 connects the negative power supply, relay protection device sends trip command or manually presses trip button OFF, the positive power supply is sent to 312 through synthesizing the device internal circuit of protecting, make 312 take positive electricity- > TQ coil- > contactor QF normally open contact actuation- > negative power supply 302 when closing a floodgate, form the return circuit, make TQ coil electrified, TQ normally closed contact disconnection, make positive power supply 301- > HQ normally open contact (contactor QF normally open contact) - > TQ normally closed contact- > QF coil (QF 1 coil) - > the original circuit disconnection of switching on of negative power supply 302, QF contactor and QF1 coil lose electricity, QF1 normally open contact disconnection, the return circuit disconnection, closing indicator L1 extinguishes, normally closed contact actuation, make positive power supply 301- > break-brake indicator L2- > sub-brake lamp L2- > negative power supply 302 form the return circuit, sub-brake indicator L2-point is bright, the circuit indicates that the circuit is in the branch brake indicator L2 is in the branch's of switch on-point state at negative power supply 302.

Claims (4)

1. The portable simulation 10kV vacuum circuit breaker device is characterized by comprising a direct current contactor HQ, a TQ, QF1, a closing indicator lamp, a separating brake indicator lamp, a closing button, a separating brake button, a standard pluggable interface socket and wiring, wherein one end of the QF is connected with one end of the QF1, a common leading-out wire is used for being connected with the standard pluggable interface socket power-port, the other end of the QF is connected with the other end of the QF1, the QF is connected with one end of the TQ normally-closed contact, the other end of the QF is connected with one end of the QF normally-open contact and one end of the HQ normally-open contact, the other end of the QF is connected with the standard pluggable interface socket power-port, one end of the HQ is connected with the standard pluggable interface socket closing port, the other end of the QF is connected with one end of the QF, the other end of the TQ is connected with the standard pluggable interface socket power-port, one end of the TQ is connected with the standard pluggable interface socket tripping port.

2. A portable analogue 10kV vacuum circuit breaker apparatus according to claim 1, characterized in that: but closing an floodgate pilot lamp one end connect in but standard plug interface socket power + port, the other end connect in but standard QF1 normally open contact one end, the other end connect in but standard plug interface socket power-port, but separating brake pilot lamp one end connect in but standard plug interface socket power + port, the other end connect in but QF1 normally close contact one end, the other end connect in but standard plug interface socket power-port, the pilot lamp light and extinguish the deciliter state that shows the circuit breaker.

3. A portable analogue 10kV vacuum circuit breaker apparatus according to claim 1, characterized in that: but closing switch button one end connect in but standard plug interface socket hand closes the port, the other end connect in but standard plug interface socket power + port, but separating switch button one end connect in but standard plug interface socket hand jumps the port, the other end connect in but standard plug interface socket power + port, manual combined floodgate and manual separating brake action are realized in the simulation.

4. A portable analogue 10kV vacuum circuit breaker apparatus according to claim 1, characterized in that: the standard pluggable interface socket is a 10kV vacuum circuit breaker standard interface and is completely compatible with an on-site actual circuit breaker interface, on-site debugging personnel can pull out a plug inserted into an actual circuit breaker and directly plug the plug into the standard pluggable interface socket, and the operation is simple and portable.

Images