With the development of society, people's requirements for the safety and reliability of electricity usage are becoming increasingly higher. High-voltage circuit breakers play a dual role of control and protection in power systems, and their performance directly affects the safe operation of the power system. Mechanical characteristic parameters are one of the important criteria for evaluating circuit breaker performance. The High Voltage Switchgear Characteristics Comprehensive Tester (High Voltage Switchgear Mechanical Characteristics Tester) is designed based on the latest "High Voltage AC Circuit Breakers" GB1984-2003 and refers to Part 3 of the "General Technical Conditions for High Voltage Test Equipment" DL/T846.3-2017 from the People's Republic of China Electric Power Industry Standards. It provides convenience for dynamic analysis of various types of circuit breakers and can accurately measure mechanical dynamic characteristics parameters of high-voltage circuit breakers at different voltage levels, including oil-less, oil-filled, vacuum, and sulfur hexafluoride circuit breakers. High-voltage circuit breakers play a dual role of control and protection in power systems, and their performance directly affects the safe operation of the power system. Mechanical characteristic parameters are one of the key indicators for assessing circuit breaker performance.

This instrument is an embedded industrial computer with a motherboard based on CortexTM-A8, featuring a 1GHz clock speed, and 1GB of flash memory, achieving a fast boot-up time of only 16 seconds. It has a 9-inch color display, runs on the Windows operating system, offers a user-friendly interface, supports both touch screen and Chinese/English input, making it convenient for on-site operators.

The high-speed thermal printer allows for easy printing of test data on-site. The integrated operation power source within the device eliminates the need for secondary power sources at the site, providing convenience and efficiency. It can supply adjustable DC power from 6V to 270V with a current capacity of up to 20A, enabling the setting of action voltage values for opening and closing coils and conducting low-voltage operation tests on circuit breakers.

Equipped with linear sensors, rotary sensors, universal sensors, and optionally laser sensors along with brackets and specialized multi-functional connectors, installation is extremely simple and straightforward.

Suitable for all domestically produced and imported models of SF6 switches, GIS combined electrical apparatus, vacuum switches, and oil switches. By actuating the switch once, all data and graphs are obtained; test data and graphics are displayed simultaneously on the screen, and speed can be recalculated without the need for retesting.

The main unit can store up to 30,000 sets of test data (expandable via storage card) and features a built-in real-time clock for archiving purposes. It includes two USB interfaces for connecting a mouse to operate the instrument, allowing direct saving of data to a USB drive or uploading to a computer for analysis and storage. RS232 interface for connection to a computer (optional), and WIFI operation (optional).

It can measure 12 channels of metal contact breaks, 6 channels of main breaks, 6 channels of auxiliary breaks, and 1 channel of speed measurement (with options for 3 channels). It contains envelope lines, generating standard envelope lines through numerical testing of one switch for analysis and comparison, and can also perform vibration frequency analysis of switches.

The internal anti-interference circuitry ensures reliable use in 500KV substations.

Time Measurement:

• 12 channels of inherent opening (closing) time
• Opening (closing) phase internal non-simultaneity
• Difference in non-simultaneity between phases during opening (closing)
• Bouncing time (number of bounces) during closing (opening)
• Non-simultaneity test range: 0.10ms～99ms, resolution: 0.01ms
• Internal trigger test range: 0.10ms～999ms, resolution: 0.01ms; 1000ms～9999ms, resolution: 0.1ms; 10000ms～200000ms, resolution: 1ms
• External trigger test range: 0.01ms～200s
• Accuracy within 1000ms: 0.05%±1 digit

Speed Measurement:

• Initial opening (closing) speed
• Average speed over a specified time period (travel segment or angle segment)

Speed Measurement Range:

• 1mm sensor: 0.01～25.00m/s
• 0.1mm sensor: 0.001～2.50m/s
• 345° angle sensor: 0.01～25.00m/s
• Laser sensor: 0.01～15.00m/s

Travel Measurement:

• Moving contact travel (3-channel travel measurement optional)
• Contact travel (opening distance)
• Over-travel
• Overshoot travel or rebound travel

Measurement Range:

• Linear sensor: 50mm, measurement range: 0-50mm, resolution: 0.1mm
• Rotary sensor: 345°, measurement range: 0-1000mm, resolution: 0.08° (with a 15° ineffective zone, optimal installation shows values around 160-200°)
• Acceleration sensor: measurement range: 0-300mm, resolution: 0.1mm

Coil Current:

• Maximum current: 20A, resolution: 0.01A

Coil Resistance Measurement Range:

• 0～2000Ω, resolution: 0.01Ω

Instrument Power Supply:

• AC220V ± 10%, 50Hz ± 10%

DC Power Output:

• Continuously adjustable from DC6～270V, DC24V≤15A (short-term), DC220V≤20A (short-term)

External Trigger Voltage:

• AC/DC10-300V, current ≤120A

Isolating Switch Measurement Range:

• Voltage output: DC6～270V (adjustable)
• Power output duration: 0.01-20 seconds (configurable)
• Maximum collection time for break signals: 200 seconds
• Measurable parameters include break/closing time, three-phase non-simultaneity, bouncing time and number of bounces

Main Unit Dimensions:

• 400×263×175mm

Operating Environment:

• Temperature: -20℃ to +50℃
• Relative Humidity: ≤90%