Introduction to High Voltage Switch Comprehensive Tester
High voltage circuit breakers undertake the dual tasks 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. The TZGKC-F Circuit Breaker Characteristic Tester is designed based on Part 3 of the power industry standard "General Technical Conditions for High Voltage Test Equipment", DL/T 846.3-2004 High Voltage Switch Comprehensive Tester. This instrument provides convenience for dynamic analysis of various circuit breakers and can accurately measure the mechanical dynamic characteristic parameters of high voltage circuit breakers such as low oil, multi-oil, vacuum, and SF6 at conventional voltage levels.
Functional Features
Functions
(1) Closing (Opening) Sequence (12) Overtravel
(2) Maximum Closing (Opening) Time (13) Overthrow
(3) Three-phase Non-simultaneity (14) Contact Velocity at Closing (Opening)
(4) Same-phase Non-simultaneity (15) Maximum Speed
(5) Closing (Opening) Time (16) Average Speed
(6) Operating Time (17) Arcing 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-Speed-Travel 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 110kV 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) Convenient wiring and simple operation. Only one closing (opening) action is needed to obtain all closing (opening) data. Can choose to save 50 sets of data, and can also view and print all data and motion curves on site.
(6) Operated with Chinese prompts in a human-machine dialogue manner.
(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 after power failure, it can automatically save setting data and test data.
(9) Built-in delay protection function. After the circuit breaker operates, the action power supply can be automatically cut off, well protecting the circuit breaker equipment and the high voltage switch tester.
(10) The instrument has a built-in DC power supply with a selectable range of 30-270V/20A. There is no voltage drop at the moment of output of conventional rectifier power supplies, making it very accurate for testing switch action voltage.
Technical Specifications
1. Environmental Group: Belongs to Group III instruments in GB6587.1-1986 "General Outline of Environmental Tests for Electronic Measuring Instruments"
2. Power Supply: AC220V±10% Frequency: 50Hz±5%
3. Ambient Temperature: -10℃～40℃ Relative Humidity: ≤85%
4. Insulation Resistance: ≤2MΩ
5. Dielectric Strength: Power input to housing can withstand 1.5kV for 1 minute withstand test
6. Time Test Range: 1～499.9ms Resolution: 0.01ms Accuracy: ≤0.1%
7. Speed Test Range: 15m/s Resolution: 0.01m/s Accuracy: ±1%
8. Travel Test Range: Unlimited Resolution: 0.01mm Accuracy: ±1%
9. DC Power Supply Selection Range: 25-265V/10A Resolution: 1V Accuracy: ≤±1%
