KJTC-IV High Voltage Switch Mechanical Characteristics Tester Manufacturer User Manual
I. KJTC-IVHigh Voltage Switch Mechanical Characteristics Tester ManufacturerOverview
The High Voltage Switch Comprehensive Tester is a specially designed instrument for detecting the mechanical dynamic characteristics of high-voltage circuit breakers. It adopts high-tech technology, integrating computer, printer, measurement interface circuit, and operation power supply into one unit, making it a new special instrument for high-voltage circuit breaker detection. It is equipped with two displacement sensors suitable for different distances and precision testing, and the instrument's automatic identification system recognizes the selected sensor to complete distance and speed measurement for low-oil, multi-oil, SF6, and vacuum high-voltage circuit breakers. In the design, only one closing (opening) operation is needed to sample and record all data of six break contacts, display measurement results with a single key operation, and print recorded measurement data, current waveform diagrams of six break contacts, and a time characteristic curve of one break contact's moving contact. The instrument processes data strictly according to the definitions in the national standards "GB 1984" and "GB 3309".
II. KJTC-IVHigh Voltage Switch Mechanical Characteristics Tester ManufacturerInstrument Functions and Features
1. Test Functions
(1) Closing (opening) sequence: simultaneously measure one to six break contacts
(2) Three-phase non-simultaneity: simultaneously measure one to six break contacts (ms)
(3) Same-phase non-simultaneity: simultaneously measure one to six break contacts (ms)
(4) Closing (opening) time: simultaneously measure one to six break contacts (ms)
(5) Closing (opening) bounce time: simultaneously measure one to six break contacts (ms)
(6) Closing (opening) speed: measure one break contact (m/s)
(7) Maximum closing (opening) speed: measure one break contact (m/s)
(8) Average closing (opening) speed: measure one break contact (m/s)
(9) Moving contact travel: simultaneously measure one to six break contacts (mm)
(10) Moving contact overtravel (contact travel): simultaneously measure one to six break contacts (mm)
(11) Close-open time (metal short-circuit time): ms
(12) No-current time (auto-reclosing no-current interval): ms
2. KJTC-IVHigh Voltage Switch Mechanical Characteristics Tester ManufacturerMain Performance and Features of the Instrument
(1) The instrument adopts high-stability components, floating, large-area, digital filtering and other anti-interference technologies.
(2) The instrument is equipped with two displacement sensors, suitable for detecting high-voltage circuit breakers with different distances, speeds, and precision requirements. When different sensors are inserted, the instrument will automatically identify them. The instrument can automatically identify closing (opening) operations and reclosing operations of high-voltage circuit breakers, and automatically collect all data after operations. The measurement and calculation process is automatically completed by the CPU.
(3) The instrument has automatic identification capability and strong self-protection functions for wiring errors during measurement, incorrect commands during operation, and unsuccessful operations of high-voltage circuit breakers.
(4) It displays the closing (opening) sequence and the actual closing (opening) time of each break contact, providing a basis for maintenance and debugging of three-phase non-simultaneity and same-phase non-simultaneity of high-voltage circuit breakers. Data related to time quantities with 0.1 millisecond accuracy are automatically not displayed or output.
(5) For the measurement of moving contact travel and overtravel, as long as a sensor is installed on any phase break contact of the high-voltage circuit breaker, the travel and overtravel data of all three phases' break contacts can be measured and calculated simultaneously. The speed measurement accuracy of the instrument is 1% of seconds per meter.
(6) The power supply box provides 0-250V DC operation power to directly operate high-voltage circuit breakers. It is suitable for operating mechanisms with DC control such as electromagnetic, hydraulic, and spring energy storage types.
(7) The instrument is small in size, light in weight, simple to operate, and easy to carry, especially suitable for field mobile detection and on-site maintenance testing in substations. It is an essential tool for production, inspection, maintenance, and debugging of high-voltage circuit breakers.
III. KJTC-IVHigh Voltage Switch Mechanical Characteristics Tester ManufacturerTechnical Specifications of the Instrument
1. Comprehensive Technical Specifications of the High Voltage Switch Comprehensive Tester
External operation power supply voltage: AC/DC 48V-280V