CN201293814Y - Operating device for GIS test - Google Patents

Abstract

The utility model relates to an operating device for GIS test, which comprises a voltage regulator with auxiliary winding, an automatic closing and opening circuit and a manual closing and opening circuit, the output terminal of the voltage regulator is connected to a rectifier bridge, The input terminal of the transformer is connected to the AC power supply; the automatic closing and opening branches are composed of the closing branch containing the closing contactor, the opening circuit containing the opening contactor and the PLC controller; a pair of closing contactors The main output contact and a pair of main output contacts of the opening contactor are connected to the live line of the auxiliary winding output end of the voltage regulator, and the other pair of output contacts of the closing contactor and the other pair of output contacts of the opening contactor Connect to the positive pole of the output terminal of the rectifier bridge; the manual closing circuit is composed of the manual closing button connected to the power supply, the moving opening contact of the opening contactor and the closing coil in series, and the manual opening circuit is composed of the manual opening button connected to the power supply The brake button, the moving opening contact of the closing contactor and the opening coil are connected in series; the structure of the device is simple, and the test efficiency is significantly improved.

Description

An operating device for GIS experiment

technical field

The utility model relates to an operating device for a GIS test, which is applied to the opening and closing operations of a GIS circuit breaker, an isolating switch and a grounding switch.

Background technique

In recent years, with the continuous expansion of GIS production capacity, the requirements for the assembly and test cycle of GIS products have become shorter and shorter. Due to the many types of GIS products and the types of operating mechanisms, the 800KV project has been successfully developed recently. In order to ensure the assembly quality and test quality and efficiency of various products, an all-round operating device is urgently needed to meet production development.

Utility model content

The purpose of the utility model is to provide a kind of operation device for GIS test which is simple in structure and convenient to use.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an operating device for GIS test, the device includes a voltage regulator with auxiliary winding, automatic closing and opening circuit and manual closing and opening circuit, voltage regulating The output terminal of the regulator is connected to the rectifier bridge, and the input terminal of the voltage regulator is connected to the AC power supply; the automatic closing and opening branches are composed of a closing branch containing a closing contactor and an opening circuit containing an opening contactor and PLC controller, the closing branch is a branch composed of the opening auxiliary contactor of the opening contactor connected in series with the closing coil, and the opening branch is the moving opening auxiliary contact of the closing contactor A branch composed of a head and an opening coil in series, one end of the closing branch is connected to the closing signal output end of the PLC controller, and one end of the opening branch is connected to the opening signal output end of the PLC controller , the other end of the closing branch and the other end of the opening branch are connected to the neutral line, one end of the opening and closing automatic operation button and one end of the opening and closing operation termination button and realize one-time opening, closing, One end of the opening operation button is respectively connected to the three interfaces of the PLC controller, and their other ends are connected to the high-level output port of the PLC controller together. A pair of main output contacts of the closing contactor and the opening contact A pair of main output contacts of the voltage regulator are connected to the live line of the auxiliary winding output end of the voltage regulator, and the other pair of output contacts of the closing contactor and the other pair of output contacts of the opening contactor are connected to the positive pole of the output end of the rectifier bridge; The manual closing circuit is composed of a manual closing button connected to the power supply, a moving opening contact of the opening contactor and a closing coil connected in series, and the manual opening circuit is composed of a manual opening button connected to the power supply. It is connected in series with the moving opening contact of the closing contactor and the opening coil.

The device is provided with a counting circuit, and the counting circuit is composed of a movable closing auxiliary contact of the closing contactor and a moving closing auxiliary contact of the opening contactor connected in parallel and then connected to a counter. The brake and closing operation termination buttons are connected in parallel.

The device is equipped with a double-throw switch, which includes three common terminals and three pairs of two-position terminals. The terminal is connected to the brake coil, the first position of the corresponding two-position terminal is connected to the DC closing output terminal, the second position is connected to the closing output terminal of the characteristic instrument, the third common terminal is connected to the opening coil, and the corresponding two-position The first position of the terminal is connected to the output terminal of the DC opening, and the second position is connected to the output terminal of the characteristic meter.

Close the circuit breaker, turn on the power supply, manual operation: press the manual closing button, the closing contactor coil is energized, the closing contactor acts, the active closing contact of the closing contactor is closed, and a closing operation is completed, and at the same time The auxiliary closing contact of the closing contactor is closed to complete a closing count; press the manual opening button, the opening contactor coil is energized, the opening contactor operates, and the active closing contact of the opening contactor is closed, completing One opening operation, at the same time, the auxiliary moving contact of the opening contactor is closed, and one opening count is completed; automatic operation: press the opening and closing automatic operation buttons, the closing signal output terminal of the PLC controller, the opening The signal output terminal outputs the closing and opening signals in sequence, the coil of the closing contactor and the coil of the opening contactor are energized in turn, the active closing contact of the closing contactor and the active closing contact of the opening contactor are closed sequentially, and the closing The circuit and the opening circuit act in sequence, and the closing circuit and the opening circuit complete the closing operation and opening operation in sequence and complete the closing count and opening count; press the opening and closing operation termination button, the automatic operation is terminated or the setting Set the number of opening and closing operations, and the operation will be automatically terminated after the operation is completed; when in the closing state, press the button for one opening, closing, and re-opening operation to complete one opening, closing, and re-opening operation. Opening operation, complete opening counting and closing counting at the same time; the device is equipped with a triple transfer switch connected to the closing, opening output of the characteristic instrument and the output of the closing and opening circuit, which can complete the opening and closing operations of the characteristic instrument and Switching between opening and closing circuit operations, the device uses a PLC controller, which makes the circuit structure simple and easy to operate.

Description of drawings

Fig. 1 is the electrical schematic diagram of the utility model.

Detailed ways

Fig. 1 shows the electrical schematic diagram of the utility model, the device includes a voltage regulator TB with an auxiliary coil TB', an automatic closing and opening circuit and a manual closing and opening circuit, and the output terminal of the voltage regulator Connect to the rectifier bridge ZQ, and the input end of the voltage regulator is connected to the AC power supply through the circuit breaker F1; the automatic closing and opening branches are composed of the closing branch containing the closing contactor KM1 and the opening circuit containing the opening contactor KM2 and PLC controller TD200, the closing circuit is a branch composed of the opening contactor's moving auxiliary contact connected in series with the closing coil, and the opening branch is the closing contactor's moving opening auxiliary contact connected in series with the opening coil One end of the closing branch is connected to the closing signal output terminal Q0.0 of the PLC controller, one end of the opening branch is connected to the opening signal output terminal Q0.1 of the PLC controller, and one end of the opening branch is connected to the opening signal output terminal Q0.1 of the PLC controller. The other end and the other end of the closing branch are connected to the neutral line, one end of the opening and closing automatic operation button ZD and one end of the opening and closing operation termination button ZDT and the one-time opening, closing and re-opening operation button One end of the OCO is respectively connected to the three interfaces of the PLC controller, and the other end is connected to the high-level output port L+ of the PLC controller, a pair of main output contacts of the closing contactor and a pair of main output contacts of the opening contactor The contacts are connected to the output terminal of the voltage regulator TB through the circuit breaker F4, and the other pair of output contacts of the closing contactor and the other pair of output contacts of the opening contactor are connected to the positive pole of the output terminal of the rectifier bridge through the circuit breaker F3; manual The closing circuit is composed of the manual closing button HA connected to the power supply, the moving opening contact of the opening contactor and the closing coil in series, and the manual opening circuit is composed of the manual opening button TA connected to the power supply and the closing contactor The moving opening contact and the opening coil are connected in series; the counting circuit is composed of the moving auxiliary contact of the closing contactor and the moving auxiliary contact of the opening contactor connected in parallel and then connected to the 3 pins of the counter PC. The closing contact is connected in parallel with the opening and closing operation termination buttons, and a reset button FA is connected in series between pins 3 and 4 of the counter; the static contact 1 of the triple switch is connected to the positive pole of the DC power supply, and the corresponding moving contacts 2 and 4 are connected to the positive pole of the DC power supply. The input terminal of the characteristic instrument, the static contacts 5 and 7 are respectively connected to the DC closing output terminal and the characteristic instrument closing output terminal, the corresponding moving contacts 6 and 8 are connected to the brake coil, and the static contacts 9 and 11 are respectively connected to the DC opening output Terminal, opening output terminal of the characteristic instrument, the corresponding moving contacts 10 and 12 join the brake coil; the socket CZ is connected to the phase line A1 and the neutral line N1 through the circuit breaker F6, and the phase lines A1, B1, C1 and the neutral line N1 pass through Circuit breaker F5 leads out a group of three-phase power supply.

Claims (3)

1. operating means is used in a GIS test, and it is characterized in that: this device comprises the pressure regulator of the auxiliary winding of band, automatic closing, separating brake circuit and closing by hand, separating brake circuit, the output termination rectifier bridge of pressure regulator, the input termination AC power of pressure regulator; Described automatic closing, the route of propping up separating brake contains the combined floodgate branch road of closing contactor and contains the separating brake circuit and the PLC controller formation of separating brake contactor, described combined floodgate circuit is that separating brake contactor moving opens the branch road that auxiliary contact and closing coil are composed in series, described separating brake branch road is that closing contactor moving opens the branch road that auxiliary contact and switching winding are composed in series, the switching signal output terminal of one termination PLC controller of described combined floodgate branch road, the sub-gate signal output terminal of one termination PLC controller of described separating brake branch road, the other end connecting to neutral line of the other end of combined floodgate branch road and separating brake branch road, separating brake, one end and the separating brake of the automatic action button of closing a floodgate, one end of closing operation mute key and realize separating brake one time, close a floodgate, an end of sub-switching operation button inserts three interfaces of PLC controller respectively again, their other end inserts the high level output port of PLC controller together, the a pair of main output contact of a pair of main output contact of closing contactor and separating brake contactor connects on the live wire of the auxiliary winding output terminal of pressure regulator, and another of closing contactor connects the positive pole of rectification bridge output end to another of output contact and separating brake contactor to the output contact; Described closing by hand circuit is made of moving open contact that is connected on closing by hand button on the power supply and separating brake contactor and closing coil series connection, and described manual brake separating circuit constitutes by being connected on the manual brake separating button on the power supply and the moving open contact and the switching winding series connection of closing contactor.

2. GIS test operating means according to claim 1, it is characterized in that: be provided with counting circuit in this device, moving the closing that described counting circuit closes auxiliary contact and separating brake contactor by closing contactor moving connects counter after the auxiliary contact parallel connection and constitutes, and moving together contact of counter and separating brake, closing operation mute key are in parallel.

3. GIS test operating means according to claim 1, it is characterized in that: be provided with double throw switch in this device, it comprises three common ports and three pairs of dibit ends, the first public termination characteristic instrument input end, the second place termination direct supply of the dibit end corresponding with it, second common port engages the brake cable circle, the primary importance termination direct current combined floodgate output terminal of the dibit end corresponding with it, the second termination characteristic instrument combined floodgate output terminal, the 3rd public termination switching winding, the primary importance termination direct current separating brake output terminal of the dibit end corresponding with it, second place termination characteristic instrument separating brake output terminal.

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