The high-voltage switch dynamic characteristic tester is a key instrument used to detect the mechanical action characteristics of high-voltage switch equipment (such as circuit breakers, isolating switches, etc.). Its core function is to evaluate the mechanical performance and reliability of the equipment by accurately measuring the opening and closing time, speed, stroke, synchronicity and other parameters of the switch, providing data support for the safe operation of the power system. The following analysis is conducted from four dimensions: technical characteristics, application scenarios, selection points, and development trends:
1. Technical features
① High precision parameter measurement
Time parameter: It can accurately measure the opening and closing time (with a resolution of usually 0.1ms), as well as different phases (time difference between phase and phase breaks), meeting the requirements of standards such as GB/T 1984 and IEC 62271.
Speed and stroke: Real time capture of the motion trajectory of the moving contact is achieved through linear or rotational sensors (resolution 0.1mm/1 °), and the rigid opening/closing speed, average speed, and overtravel are calculated.
Bounce and Synchronization: Detect the number, time, and waveform of contact bounce, analyze the synchronization of multiple fracture actions, and avoid opening and closing failures caused by mechanical jamming.
② Multi type switch adaptation
Supports vacuum circuit breakers, SF ₆ circuit breakers, oil circuit breakers, and GIS combination electrical appliances, compatible with different operating mechanisms such as electromagnetic, spring, hydraulic, etc.
Customized testing parameters can be set for different switch types, such as pre breakdown time and initial opening/closing speed definitions, to enhance testing flexibility.
③ Anti interference and safety
Adopting optoelectronic isolation, shielded cables, and floating ground design, effectively suppressing high-voltage electric field interference and ensuring data accuracy.
Built in overvoltage and overcurrent protection modules to prevent secondary damage to equipment during testing.
3. Key selection points
① Performance indicators
Time measurement accuracy: instruments with an error of ≤± 0.1ms are preferred to ensure compliance with the testing requirements of ultra-high voltage equipment.
Speed measurement range: It needs to cover the rated opening and closing speed of the switch (such as 10m/s), and support custom speed definition (such as the average speed within 10ms after just opening).
Number of channels: Select multi fracture synchronous testing capability (such as 12 fractures) according to testing requirements to improve efficiency.
② Functional scalability
Data Management and Analysis: Supports storage, export, and report generation of test data. Some instruments can be linked with PC software to achieve trend analysis.
Operating power supply: Built in DC power supply (such as 220V/10A) can simulate actual working conditions and avoid external power interference.
Sensor compatibility: Suitable for various sensors such as linear, rotational, acceleration, etc., and adaptable to different switch structures.
③ Portability and durability
On site testing should pay attention to the weight of the instrument (such as ≤ 10kg), battery life, and protection level (such as IP54) to ensure stable operation in harsh environments.
4. Development Trends
① Intelligence and automation
Integrate AI algorithms to automatically identify abnormal waveforms and provide fault diagnosis recommendations, reducing manual analysis errors.
Support wireless communication (such as 5G, LoRa) to achieve remote testing and data transmission.
② High voltage level adaptation
Develop testing instruments with higher sampling rates (≥ 1MHz) and stronger anti-interference capabilities for ultra-high voltage equipment (such as 1100kV GIS).
③ Green and environmentally friendly design
Adopting low-power chips and rechargeable lithium batteries to reduce energy consumption; Optimize sensor structure to reduce material consumption.
ZC-300B circuit breaker analyzer can be used to test and measure the mechanical characteristic parameters of high voltage switch ( such as vacuum, six fluoride, less oil, oil and other power systems. The measurement data is stable, strong anti-interference ability, can be in the 500KV level and below the power station to do experiments, wiring is convenient, simple operation, is the most convenient tool for high-voltage switch maintenance test.
Kvtester Electronics Technology Co.,Ltd. is a high-tech enterprise specializing in power testing, testing, research and development, production, and sales of testing equipment. It has been engaged in the electrical testing industry for many years, and its products are of high quality. We welcome customers to come and purchase. Service hotline: 0086-27-81778799, to learn more, visit the official website: www.kvtester.com
