• 640x480 high light color LCD touch screen, high speed built-in thermal printer.
• Built-in micro-processor, 4GB flash disk.
• Equipped with management software for history data, querying, comparing, listing, reporting and printing; RS232 and USB computer interface.
• The EHV circuit breaker analyzer has operation power integrated, no need secondary source, convenient to use at any place.
• Oscillograph function displaying current wave and stroke-duration curve to identify switch system faults.
• It's equipped with angular velocity sensor, linear sensor or slide resistance sensor, test speed of all kind of switches.
• The EHV circuit breaker analyzer has reclosing test function.
• It has inside anti-interference circuit suitable for reliable use in 500kV transformer substation, assuring safety, stability and accurate tests.
• Support low-voltage tests on operation mechanism.
• Suitable for mechanical characteristics and action voltage tests on all SF6, vacuum and low-oil-content switches.
• Seven test channels for inherent closing/opening duration synchronize on 6 open-contacts simultaneously and one channel for speed measuring.

Time test

• Closing/opening time.
• Synchronized in-phase (time difference between contacts in same phase).
• Simultaneous between-phase.
• Bouncing frequency and time.
• Contact closing/opening-time curve.

Speed and stroke test

• Open/close instantaneous speed, maximum speed and average speed.
• Open-distance, over-travel, bounce-back, total stroke.
• “Stroke-time” curve.

Current measurement on closing/opening coils

• Routine tests: time, speed and stroke.
• Reclosing test: close-open, open-close, open-close-open.
• Low-voltage test: checking out or verifying closing/open coil action voltage.

• Time range10ms-15s
• Time resolution ratio0.1ms
• Time measuring precision0.1% of reading ±0.1ms
• Min. action simultaneity difference error±0.1ms
• Closing resistance measuring range2000Ω
• Closing resistance measuring precision±2% of reading ±0.5Ω
• Coil current measuring range20A
• Coil current measuring resolution ratio0.01A
• Speed measuring range20m/s
• Speed measuring resolution ratio0.01m/s
• Speed measuring precision±1.0% of reading ±0.05m/s
• Stroke measuring range6mm-400mm
• Stroke measuring resolution ratio0.1mm
• Stroke measuring precision±1.0% of reading ±0.1mm
• PowerAC 220V±10%, 50Hz ±1Hz
• Operation power output20V-250V, 20A , digital and adjustable
• Dimension410×310 ×240mm
• Weight10kg

Note: We can supply other circuit breaker analyzers based on your detailed requirements.