Product Details

I,Overview

     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 YK8207 High Voltage Switch Mechanical Characteristics Tester is designed based on the new "High-Voltage AC Circuit Breakers" GB1984-2003, and in accordance with the People's Republic of China power industry standard "General Technical Conditions for High Voltage Test Equipment" Part 3, DL/T846.3-2004 High Voltage Switch Comprehensive Tester, providing convenience for dynamic analysis of various circuit breakers, and can accurately measure the mechanical dynamic characteristic parameters of various voltage levels of low-oil, multi-oil, vacuum, sulfur hexafluoride, and other high-voltage circuit breakers.

II,Performance Features

2.1, Performance

 ● Time: Inherent opening and closing times of 12 contacts, simultaneity within same phase and between phases.

 ● Reclosing: For each contact: close-open, open-close, open-close-open; metal short-circuit time, no-current interval time values.

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

 ● Speed: Just-opening and just-closing speeds, maximum speed, time-travel characteristic curve.

 ● Travel: Total travel, open distance, overtravel, overshoot travel, rebound amplitude.

 ● Current: Opening and closing coil current values and current waveform diagrams.

 ● Operating voltage: The instrument provides a DC 0～270V/20A digitally adjustable circuit breaker operating power supply, automatically completes the high and low voltage operating tests of the circuit breaker, measures and prints the operating voltage value of the circuit breaker.      

2.2, Features

 ◆ The instrument adopts an industrial computer architecture, suitable for SF6 switches, GIS combined electrical appliances, vacuum switches, oil switches, and pole-mounted switches, contactors, etc., produced domestically and internationally with metal contacts.

 ◆ Sensors: Acceleration speed sensor, rotary speed sensor, linear displacement sensor, and contact sensor, extremely convenient and simple to install.

 ◆Trigger modes: Internal trigger, external trigger, sensor trigger, and manual trigger. Manual trigger can perform characteristic tests on circuit breakers that are manually opened and closed (without opening/closing coils), such as manual switches on utility poles. Sensor trigger is mainly used in places with special requirements like switch factories.

 ◆ Energy storage output: The instrument can provide a DC adjustable energy storage power supply. Once the wiring is done, the motor energy storage can be controlled at any time without rewiring.

 ◆ The host has a large screen, direct-transmissive, wide-temperature backlit LCD with electronic contrast adjustment. Complete Chinese menu prompts guide operation; after one switching action, all data and waveform diagrams are displayed.

 ◆ The host can store 1000 sets of on-site opening and closing test results, with a built-in real-time clock for archiving test dates and times; USB interface for data transfer and program upgrades.

 ◆ The instrument has powerful data analysis functions, capable of effectively analyzing various indicator parameters of circuit breaker mechanical characteristics. Built-in fast micro printer prints all data and diagrams.

III,Technical Parameters

1.1, Operating Environment

      Input power supply  220V±10%  50Hz±10%      Atmospheric pressure   86～106kPa

      Temperature  -20～45℃                Humidity   ≤80%RH

1.2, Safety Performance

      Insulation resistance  ＞2.0MΩ  

      Dielectric strength  Power supply to chassis withstands 1.5KV for 1 minute at power frequency, no flashover or arcing.

1.3, Basic Parameters

      ◆Time: Range 0-64000.0ms  Resolution 0.1ms  Error ≤ 0.1％rdg±0.1

      ◆Speed: Range 0-20.00m/s  Resolution 0.01m/s  Error ≤1％rdg±0.01                       

      ◆Travel: Range 0-1000mm  Accuracy ±0.1%

   ◆Coil current: Range 20.00A     Resolution 0.01A    

   ◆Coil resistance: Range 27.0KΩ    Resolution 0.1Ω     

   ◆Output power supply: DC0～270V digitally adjustable／20A  Resolution 1V  Error ≤1％rdg

   ◆Dimensions and weight: 340mm(L)×240mm(W)×210mm(H)     9kg