Switchgear Power-on Test Bench
1. Product Overview:
The switchgear test bench / high and low voltage switchgear test device / quotation is a new type of calibration bench designed and developed by our company based on the GB14048 "Low-voltage switchgear and controlgear" standard, related product technical standards, and special requirements of users.
The switchgear test bench / high and low voltage switchgear test device / quotation is composed of new components such as voltage regulators, current boosters, high-precision ammeters, voltmeters, AC contactors, buttons, indicator lights, etc. It can be used by manufacturers or relevant quality inspection departments to comprehensively measure and verify the comprehensive operating characteristics of complete equipment, ensuring safety.
Equipment purpose: To test the operating characteristics of complete equipment such as energy storage, closing, shunt release, overvoltage, undervoltage, and short circuit.
2. Technical Parameters:
1. Input power: 380V/220V±10%, 50Hz; (A, B, C, N)
2. Equipment capacity: single-phase 2KVA, three-phase 6KVA
3. Output current: three-phase AC 0-10A continuously adjustable current
4. Output voltage: three-phase AC 0-500V continuously adjustable voltage
Single-phase AC 0-250V continuously adjustable voltage
Single-phase DC 0-250V continuously adjustable voltage
5. System error: ≤1%
6. Waveform distortion: ≤1%
7. Accuracy class of measuring instruments:
Ammeter accuracy class: Class 1
Voltmeter accuracy class: Class 1
3. Working Environment:
1. Ambient temperature should not exceed 45°C.
2. Relative humidity 20%-80%.
3. There should be no strong vibration or impact, no large amounts of dust or corrosive gases, and no strong electromagnetic interference or radiation interference around the equipment.
4. Operating Methods:
1. Turn on the power switch, and the power indicator light will illuminate.
2. Connect the test sample to the output terminals of the test bench.
3. First, turn each voltage regulator counterclockwise to zero, press the start button, and the test bench is in testing state.
(1) Three-phase AC voltage test: Slowly rotate the three-phase voltage regulator clockwise until the voltmeter indicates the test value.
(2) Three-phase AC current test: Slowly rotate the three-phase current regulator clockwise until the ammeter indicates the test value.
(3) Single-phase AC voltage test: Turn the AC/DC changeover switch to the AC position, the AC indicator light will illuminate, then slowly rotate the single-phase voltage regulator clockwise until the voltmeter indicates the test value.
(3) Single-phase DC voltage test: Turn the AC/DC changeover switch to the DC position, the DC indicator light will illuminate, then slowly rotate the single-phase voltage regulator clockwise until the voltmeter indicates the test value.
4.After the test, turn all voltage regulators counterclockwise to zero, press the stop switch, and disconnect the power supply.
5. Precautions:
1. The test bench must be reliably grounded, and the grounding wire should not be less than 1.5mm.
2. Before testing, always check whether the voltage regulator is at zero position.
3. During testing, wear insulating shoes and insulating gloves.
