Product Introduction
Testable equipment scope: all types of vacuum circuit breakers, SF₆ circuit breakers, oil-filled high-voltage circuit breakers, load switches, GIS earthing disconnect switches, contactors, relays, air circuit breakers, etc.
Measurable parameters & waveforms: circuit breaker operation time, phase synchronization, bounce time (number of bounces), stroke, velocity, operating voltage, operating current, actuation voltage, mechanical operation characteristics, etc.
Key performance features: 15KV on-site induced voltage immunity; standard configuration includes 12-channel metal contact time measurement channels.
Technical Parameters
| Parameter |
Specification |
| DC Power Supply |
35～265V, High instantaneous current: 20A |
| Time Measurement |
0.01ms～18000ms, Resolution: 0.01ms, ±0.1% |
| Closing Resistance |
0～1.3kΩ, Resolution: 1Ω, ±1% |
| Travel Measurement |
0～1000mm, ±1% |
| Speed Characteristics |
0.001～25.00m/s, ±1% |
| Voltage Characteristics |
12-250V, ±1% |
| Current Characteristics |
0.1A～20A, ±2% |
| Angle Characteristics |
360°, Resolution: 0.5°, ±1% |
Mechanical Characteristics Measured at a Glance
Operation Time Phase Synchronization Bounce Time & Count Stroke / Travel Velocity Operating Voltage Operating Current Actuation Voltage Mechanical Operation Waveform
Target Applications and Ideal Users
This portable switch tester is not a general-purpose multimeter: it is purpose-built for the teams that verify the mechanical performance of high-voltage switching devices. It is designed for:
High-voltage circuit breaker overhaul and retrofit workshops
Measure stroke, velocity and bounce time after a mechanism overhaul, confirming that every breaker is rebuilt to specification before it returns to service.
Substation commissioning and handover test teams
Verify opening and closing times, phase synchronization and contact travel of new breakers before energization during substation commissioning.
Circuit breaker manufacturers' type-test and R&D laboratories
Mechanical characteristics verification for new models and routine factory acceptance testing, with full operation waveforms for documentation.
Utility operation and maintenance inspection crews
Condition assessment and predictive maintenance of in-service breakers during scheduled outages, catching mechanical drift before failure.
Third-party electrical testing and maintenance service companies
A portable, fast tester that travels easily between client sites for outsourced breaker testing and reporting.
Industrial and railway power supply maintenance departments
Testing of contactors, relays, air circuit breakers and medium-voltage switchgear inside plants and traction power systems.
Frequently Asked Questions
Q1. Which switching devices can this portable switch tester test?
It tests all types of vacuum circuit breakers, SF6 circuit breakers, oil-filled high-voltage circuit breakers, load switches, GIS earthing disconnect switches, contactors, relays and air circuit breakers.
Q2. What mechanical characteristics can it measure?
Circuit breaker operation time, phase synchronization, bounce time (number of bounces), stroke, velocity, operating voltage, operating current, actuation voltage and full mechanical operation characteristics waveforms.
Q3. What are the current and time measurement ranges and accuracy?
Current characteristics span 0.1A to 20A at ±2%, while time measurement covers 0.01ms to 18000ms with 0.01ms resolution and ±0.1% accuracy.
Q4. Can it withstand induced voltage during on-site substation testing?
Yes. The tester provides 15KV on-site induced voltage immunity, so it remains reliable in live-adjacent substation and GIS testing environments.
Q5. How many contact timing channels does it have, and what is its power supply?
It is supplied as standard with 12-channel metal contact time measurement channels and runs on a DC power supply from 35 to 265V with a high instantaneous current of 20A.
