High voltage switch mechanical characteristics opening and closing tester circuit breaker characteristics tester circuit breaker operating characteristics
The terms you entered, such as "High Voltage Switch Mechanical Characteristics Opening and Closing Tester" and "Circuit Breaker Characteristics Tester," all refer to professional equipment used in the power system to detect the core performance of high-voltage circuit breakers. This type of instrument is also commonly referred to in the industry as a high-voltage switch dynamic characteristics tester or switch mechanical characteristics tester.
With the increasing requirements for the safety and reliability of power supply in the power grid, high-voltage circuit breakers undertake the dual tasks of control and protection in the system, and the quality of their mechanical characteristics directly affects the safe operation of the power grid. The core functions and key technical indicators of this tester are summarized as follows:
1. Core Testing Functions
This instrument is mainly used to measure the mechanical dynamic characteristic parameters of various high-voltage circuit breakers, such as vacuum, SF6 (sulfur hexafluoride), low-oil, and multi-oil types. With just one closing (or opening) operation, it can automatically collect and analyze the following data:
Time parameters: inherent opening/closing time, re-closing time, same-phase/phase-to-phase non-simultaneity, bounce time and count, etc.
Speed and travel parameters: just-opening/just-closing speed, average speed, maximum speed; moving contact travel, opening distance, overtravel, over-travel, etc.
Electrical characteristics: current waveform and maximum current value of the opening/closing coil, low-voltage operation test, etc.
2. Key Technical Indicators and Performance Features
High precision and high resolution: time measurement resolution typically up to 0.01ms, travel resolution up to 0.1mm, speed measurement range generally 0-20m/s.
Strong anti-interference capability: adopts photoelectric isolation technology and digital filtering technology, capable of stable and reliable operation in strong electromagnetic field environments of 500kV and above substations.
Built-in operating power supply: the instrument usually integrates an adjustable DC power supply (such as DC 30-270V/20A), allowing direct control of the switch for opening, closing, and re-closing operations without the need for an on-site secondary power supply.
Sensor self-adaptation: supports various displacement sensors such as linear, rotary, and laser types; the instrument can automatically identify and match them, making installation extremely convenient.
Intelligent data analysis: built-in industrial computer and Windows system, test data and waveform curves (such as time-travel-speed curves, coil current curves) can be displayed on the same screen, supporting data storage, printing, and USB export for analysis.
3. Execution Standards
The development and design of such instruments typically follow the latest national standard "High-voltage AC Circuit Breakers" (such as GB1984-2014) and the power industry standard "General Technical Conditions for High-voltage Test Equipment" (such as DL/T846.3-2017).
💡 Further Assistance
Given your previous attention to the Yangzhou industrial belt, there are also many professional manufacturers of such high-voltage switch testers in Yangzhou. May I ask what your specific needs are currently:
Procurement and selection: Do you need me to summarize how to choose the appropriate sensor configuration and built-in power supply power based on the type of switch under test (such as vacuum or SF6) when purchasing this equipment?
On-site testing and fault diagnosis: Have you encountered problems in actual testing and need to discuss how to diagnose mechanical faults of high-voltage switches based on abnormal "bounce time," "simultaneity," or "speed curve" test results?
Compliance and calibration: Do you need to inquire about the periodic calibration specifications (such as DL/T 1694.3-2017) or relevant qualification requirements for this tester?
