ac power source voltage regulator的用法和样例：
- Manufacturer of AC power source equipment for testing.
- This paper introduces a simple, reliable AC power supply with constant voltage and frequency. The supply consists of a DC motor-AC generator set, a automatic voltage regulator (AYR), and a automatic frequency regulator (AFR).
- The unit was placed near an AC power source, a fluorescent lamp or a mobile phone during recording or playback.
- APU is used to furnish 60 KVA of electrical power on the ground and used as AC power source of 50 KVA in flight.
- Noise may be heard when the unit is placed near an AC power source, a fluorescent lamp or a mobile phone during recording or playback.