OLTC.500A On-load tap-changer tester
About the OLTC.500A:
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The on-load tap-changer is the only moving part that is connected to the transformer circuit, so the detection of the on-load tap-changer is getting more and more attention.
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In the "Procedures for Handling and Preventive Tests for Electrical Equipment", it is required to check the sequence of actions and the switching time of the on-load tap-changer.
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The OLTC.500A on-load tap-changer tester is mainly used to measure the transition waveform, transition time, transient resistance value, and three-phase synchronization of the on-load tap-changer.
Specifications:
Working Environment Conditions
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Ambient temperature: -10℃～40℃
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Environmental humidity: ≤80%
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Altitude: ≤2000m
Working Power Supply
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Single-phase voltage: 220V (±10%)
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Frequency: 50Hz ±1Hz
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Waveform: Sine, waveform distortion rate ≤2%
Output Test Power in the Instrument
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AC output power frequency: 50Hz ±0.2Hz (frequency adjustable)
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AC output voltage range: Three-phase four-wire 0~500V (voltage adjustable)
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AC output capacity: Rated 1000VA
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AC power supply waveform distortion rate: ≤3%
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AC power voltage phase angle: 120°, phase angle difference ≯120° ±1°
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DC current output range: 0.5A, 1A (two levels optional)
Instrument Test Accuracy
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Number of synchronous acquisition channels: 6
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Accuracy of collected data: 16 bits
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Acquisition speed: 200 k/s/channel
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Acquisition board cache depth: 8M byte FIFO
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Voltage range: 0V～500V
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Current range: 0mA～100mA, 0A～10A
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Voltage and current test accuracy: 0.5 level
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Resistance range: 0.5A range 0-20Ω; 1A range 0-10Ω
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DC resistance measurement accuracy: ±(5% + 0.1Ω)
Insulation Performance
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Insulation resistance: The insulation resistance of the power input end to the chassis is >20MΩ
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The insulation level of the test device should be able to withstand 1500V AC voltage (effective value)
Weight and Volume
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Weight: 30kg (excluding test line)
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Volume: 530×320×600 (mm)