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II Performance
2.1 Time
The machine can measure the natural parting and closing time of 12 metal fractures, the same period
time, the same period time, the same period time, the gold short time, the no flow time, the closing spring
time of the process of closing - parting, dividing - parting and dividing - dividing; Some models can
measure the pre-casting time of closing resistance.
2.2 Speed and stroke
This tester can record and measure the closing bounce time, the number of bounces, the bounce
process, and the bounce waveform of each fracture.
2.3 Speed and stroke
This tester can record and calculate the rigid points, rigidity, maximum speed, average speed, total
travel, opening distance, over travel, rebound amplitude, time-travel characteristic curve.
2.4 Current and voltage
This tester can record the opening / closing current value and current waveform of the opening /
closing coil, and provides DC5
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270V / 10A (20A) digital adjustable circuit breaker operation power
supply, automatically completes the low voltage operation test of the circuit breaker, and measures the
open circuit. The operating voltage of the device.
2.5 Closing resistance
Some models of this machine can measure 6-way closing resistance value and its pre-throw time at
the same time.
III Term definitions
♦ Opening / closing time: When the opening / closing coil is powered on as the timing starting point, the
time to the opening / closing of the moving and static contacts.
♦ In the same period: Among the same phase, the difference between the maximum and minimum
opening / closing time.
♦ Phase-to-phase synchronization: The difference between the maximum and minimum opening / closing
time among three phases.
♦ Average speed: During the opening (closing) process, remove the front and back of the moving contact
by 10%, take the middle 80%, the ratio of the travel of the moving contact to time.
