High-voltage Switch Mechanical Characteristic Tester

I. Product Technical Specifications

1.1. Application Environment

     Input Power  220V ±10%, 50Hz ±10%, Atmospheric Pressure: 86~106 kPa

     Warm     Degree  -20 to 45°C, Humidity ≤ 80%RH

1.2 Safety Performance

     Insulating Resistance  ＞2MΩ  

     Dielectric strength  Power supply for the housing at line frequency1.5kVoltage withstand for 1 minute, no flashover or arc.

1.3 Basic Parameters

     ◆ Date: Range 16000.0ms, Resolution 0.1ms, Error ≤ 0.1% rdg ± 0.1

     Speed: Range 20.00 m/s, Resolution 0.01 m/s, Error ≤ 1% rdg ± 0.01                      

     ◆Range: 1000 Scale.0mm

◆Coil Current: Range 20.00A Resolution 0.01A

Output Voltage: DC 0～270V Digital Adjustable / 20A Resolution 1V, Error ≤0.1％rdg±1V

Dimensions and Weight: 420mm (L) × 350mm (W) × 230mm (H), 8kg

II. Performance Features

2.1 Performance

● Date:12The inherent opening and closing times of a single-phase switchgear, as well as the same-phase and phase-to-phase同期 times.

● Reclosing: Each opening-closing, closing-opening, closing-opening-closing; gold short time, no current interval value.

● Bounce: Closing bounce time, bounce count, bounce process, and bounce waveform for each contact; rebound amplitude for each opening contact.

● Speed: Separate and combine speed, maximum speed, time-travel characteristic curve.

● Trip: Total trip, stroke, overshoot, rebound stroke, amplitude of rebound.

● Current: Values of opening and closing current for the opening and closing coils, resistance values, and current waveform diagram.

Action Voltage: In-built DC 0~270V/20A digital adjustable circuit breaker with an action power supply, automatically completing high and low voltage action tests for the circuit breaker, measuring and printing the action voltage values of the circuit breaker.

2.2. Features

◆ The instrument adopts an industrial computer architecture and is applicable to all models of SF6 switches, GIS integrated electrical equipment, vacuum switches, oil switches, pole-mounted switches, and contactors with metal contact tips produced both domestically and internationally.

◆ Sensors: Acceleration velocity sensors, rotational velocity sensors, and linear stroke sensors are extremely easy and straightforward to install.Three-phase speed, stroke, opening distance, and overshoot parameters displayed.

◆ Trigger Methods: Internal Trigger, External Trigger, Sensor Trigger, and Manual Trigger.Manual triggering can be used for characteristic tests of manual circuit breakers that can be manually opened and closed (without opening and closing coils), such as manual open/close switches on pole posts. Sensor triggering is mainly used for special requirements in places like switch factories.

◆ Storage Power Output: The instrument can provide maximum starting current *20AAdjustable energy storage power supply, once the wiring is properly connected, it can automatically control the motor's energy storage without the need to reverse the wires.

◆ Large screen host, direct-view, wide temperature range backlight LCD, contrast electronically adjustable. Complete full Chinese menu prompts for operation, one switch action displays all data and waveform charts.

◆ The main unit can store 100 sets of on-site opening and closing test results, an internal real-time clock for archiving and saving test dates and times; USB interface for data transfer and program updates.

The instrument boasts powerful data analysis capabilities, effectively analyzing various indicator parameters of the circuit breaker's mechanical characteristics. It is equipped with an internal quick miniature printer, capable of printing all data and graphs.

III. Terms and Definitions

 Break (Close) Time Power-up time from the (split/closed) coil to the moment the moving and stationary contacts just separate (close).

 ● Phase Synchronization: In phase synchronization, the switching (on/off) time * is the largest.*Just a small difference.

 ● Intervals同期: Separation (or Closing) Time among the Three Phases*Large &*Just a little difference.

 Average Speed: The ratio of the travel distance of the moving contact during the opening and closing process, with the front and rear 10% of the total travel distance removed, taking the middle 80%, to the time taken for the movement.

 ● *High Speed: During the opening and closing process, after the moving contact starts to move, take every 10ms of the moving contact's movement as a speed counting unit until the moving contact stops, obtaining a certain number of speed unit values, among which...*Large unit speed value equals to breaking (closing) speed*High speed.

 ● Break (Close) Speed: Varies by the manufacturer of the switch being tested and the specific switch model, as each manufacturer defines different break (close) speeds.

     ○ Total and split time: 10ms       IEC Standard, some oil switches, some SF6Switches

     ○ Split before and after for 5ms each: Partial oil switches

○ LW8-35 Type: LW8-35 SF6Switches

○ 10% to Break Point: Certain SF switches produced by Xi'an Switch Factory6Switches

     ○ ABB-HPL245B1：        ABB's 220kV SF6Switches

○ LW6 Type: LW6 SF6Switches

     ○ Average Speed: Some SF switches produced by Shenyang Switch Factory6Switches

     ○ LW33-126               LW33-126 SF Type6Switches

     ○ 10mm combined and divided: Part 35kVacuum Circuit Breaker

     ○ 6mm Pre-joined and Split: Part 10kV vacuum switch.

     If none of the above definitions are adopted, users can define the velocity sampling segment for the initial separation and closure speeds based on the time path characteristic curve measured by the tester (the travel has a directional property). The instrument will then automatically calculate the user-defined initial separation and closure speeds (the ratio of travel to time within the sampling segment).