High Voltage Switch Comprehensive Tester
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The High Voltage Switch Tester is designed based on the latest "High Voltage AC Circuit Breakers" GB1984-2003, and refers to the third part of the People's Republic of China power industry standard "General Technical Conditions for High Voltage Test Equipment",
DL/T846.3-2004 as the design basis, providing convenience for dynamic analysis of various circuit breakers, and can accurately measure the mechanical dynamic characteristic parameters of high voltage circuit breakers of various voltage levels, such as low oil, multi-oil, vacuum, and SF6. High voltage circuit breakers play dual roles of control and protection in the power system, and their performance directly affects the safe operation of the power system. Mechanical characteristic parameters are one of the important parameters for judging circuit breaker performance.
Functional Features
Test Functions
(1) Closing (Opening) Sequence (12) Over-travel
(2) Maximum Closing (Opening) Time (13) Excess Travel
(3) Three-phase Non-simultaneity (14) Just Closing (Opening) Speed
(4) Same-phase Non-simultaneity (15) Maximum Speed
(5) Closing (Opening) Time (16) Average Speed
(6) Operating Time (17) Contact Touch Time (Close-Open Time)
(7) Bounce Time (18) No-current Time
(8) Bounce Count (19) Current Waveform Curve (Dynamic)
(9) Bounce Amplitude (20) Time-Travel-Speed Dynamic Curve (ms)
(10) Travel (21) Time-Travel-Speed Dynamic Curve (mm)
(11) Contact Gap
Units are: Time ms, Speed m/s, Distance mm
Features
(1) Can perform electric and manual operations;
(2) Suitable for mechanical dynamic characteristic testing of various high voltage circuit breakers within 500KV voltage level;
(3) Can measure actual travel and custom travel;
(4) Can achieve single close, single open, close-open, reclose, and re-open operations of circuit breakers;
(5) Easy wiring and simple operation. Only one close (open) action is needed to obtain all close (open) data. Can save up to 50 sets of data for later query and upload to computer for permanent storage. Can also view and print all data and motion curves on-site;
(6) Uses Chinese prompts for human-machine dialogue operation;
(7) Accurate data, strong anti-interference, small size, light weight, and beautiful appearance;
(8) Built-in clock circuit can display current year, month, day, hour, minute, and second. Even if power is off, it can automatically save settings and test data;
(9) Built-in delay protection function. After the circuit breaker operates, it can automatically cut off the operating power, effectively protecting the circuit breaker equipment and the high voltage switch tester;
(10) The instrument has a built-in DC power supply with selectable range: 30-270V/10A. It does not have the voltage drop at the moment of output in conventional rectifier power supplies, making it very accurate for testing switch operating voltage.
(11) Can dynamically analyze the relationship between travel and speed of the circuit breaker every 1ms;
(12) Can be configured with upload software for computer archiving, online viewing, and printing.
Technical Specifications
◆ Test Items
◇ Time Measurement: Simultaneously measure the inherent opening and closing times, non-simultaneity, bounce time, and bounce count of 12 (or 6) contacts;
◇ Displacement and Speed Measurement: Simultaneously measure three-phase contact gap, over-travel, total travel, maximum bounce amplitude, and opening (closing) speed;
◇ Switch Voltage Operating Characteristic Test: Provides operating voltage from built-in DC power supply;
◇ Switch Coil Current Waveform Measurement;
◇ Reclosing Test: Built-in DC power supply serves as the operating power for high voltage switch reclosing, and the delay of open-close-open in reclosing test can be set.
◆ Waveform Display
◇ Can display coil current-time curve;
◇ Can display three-phase switch displacement-time curve;
◇ Can display three-phase switch speed-time curve;
◇ Can display switch state-time curve.
◆ Product Features
◇ High-speed and high-precision data acquisition;
◇ Can simultaneously acquire three-phase displacement;
◇ Uses large-screen LCD display;
◇ Test data can be saved in the instrument;
◇ Supports rotary, linear displacement, and acceleration sensors.
◆ Operating Conditions
◇ Power Supply Voltage: AC220V±22V, 50Hz±1Hz;
◇ Ambient Temperature: –5℃-50℃, Relative Humidity: <80%;
◆ Display Mode: 5.7-inch 320×240 LCD screen; high-speed thermal printer;
◆ Safety Performance
◇ Insulation Resistance: >100MΩ;
◇ Dielectric Strength: Withstand power frequency 1.5kV for 1min between power supply and casing without flashover or arcing;
◆ Time Range
◇ Test Range: 0.01ms-4000ms Resolution: 0.01ms;
◇ Measurement Error: ±0.1ms+1d;
◆ Speed Test
◇ Sensor Linearity ≤0.1%;
◇ Sampling Frequency 150kHz;
◇ Speed Measurement Range: 0.01m/s-20.0m/s;
◇ Measurement Error: ±0.1m/s within 0-2m/s, ±0.3m/s above 2m/s;
◆ Travel Test
◇ Measurement Range: 0.01mm-250mm (customizable 0.01mm-1000mm);
◇ Measurement Error: ±0.2mm for 50mm, ±0.5mm for 50mm-250mm;
◆ The built-in DC power supply can be used as the operating power for opening (closing) and reclosing tests of the switch;
◇ Output Voltage: DC 30V—260V Error: 1%;
◇ Output Current: 0～10A;
◆ Volume: 400×2500×300mm;
◆ Weight: 8kg (excluding accessories).
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
