IEC
IEC 61000-4-27: Unbalance, immunity test
Standard Overview
IEC 61000-4-27 considers immunity tests for electric and/or electronic equipment (apparatus and system) in its electromagnetic environment. Only conducted phenomena are considered, including immunity tests for equipment connected to public and industrial networks. Establishes a reference for evaluating the immunity of electrical and electronic equipment when subjected to unbalanced power supply voltage. Applies to 50 Hz/60 Hz three-phase powered electrical and/or electronic equipment with rated line current up to 16 A per phase.
Retrieved 3/12/14 from IEC Webstore
Retrieved 3/12/14 from IEC Webstore
Products Used in Testing
EM Test 3-Phase Netwave Series AC/DC Power Supply
- Wide Power Bandwidth; DC - 5kHz
- Output Power up to 60,000VA AC / 72,000W DC
- Output Voltage up to 3*360V AC (p-n), +/-500V DC
Teseq NSG 1007-5 Single Phase AC and DC Power Source
- 5 kVA AC Source L-L three phase input
- Single phase output
- Arbitrary waveform generation
Pacific Power 3150AFX AC & DC Programmable Power Source
- DC, 15 to 1,200 Hz frequency range
- Accuracy ± 0.01%
- 125 Arms / 62.5 ADC
Pacific Power 3550AZX Regenerative AC & DC Power Source
- Power: 55kVA/kW
- Voltage: 440VAC, ±650VDC
- Current: 225ARMS, 150ADC
California Instruments Tahoe | TA0045A1 Power Supply | 45 kVA
- Output: 45kVA, 0-166/333Vrms, 1/3ph
- Frequency Range: 16Hz - 905Hz
- Input Power: 208/600VAC, 3ph
California Instruments Sequoia SQ0045 Regenerative AC Grid Simulator
- Power: 45kVA/kW
- Voltage: 333VRMS, 440VDC
- Current: 125/62.5ARMS, 85/42.5ADC
Pacific Power EPTS-100A-3 Electronic Power Transfer Switch
- 3-Phase
- 100A / Ph
- Accuracy < 0.25%
Pacific Power 3210AGX | AC & DC Load/Power Supply | 21 kVA
- Power: 21kW/kVA
- Voltage: 350VAC, 500VDC
- Current: 21ADC
Pacific Power 3210RLS-4W AC/DC Load Simulator | 21 kVA
- 15.0 - 1200 Hz
- 21 kW/kVA
- 7 kW / ± 1.5 % F.S.