phas - pira
- phase
- phase adjustment
- phase advance
- phase advance circuit
- phase advance network
- phase advancer
- phase angle
- phase angle control
- phase angle error
- phase angle meter
- phase angle relay
- phase balance relay
- phase balancing
- phase belt
- phase change
- phase changer
- phase characteristic
- phase characteristic curve
- phase coil insulation
- phase coincidence
- phase comparator
- phase comparison
- phase comparison protection
- phase compensating device
- phase compensation
- phase compensation transformer
- phase compensator
- phase constant
- phase control
- phase control circuit
- phase control servomechanism
- phase conversion
- phase converter
- phase correction
- phase corrector
- phase crossover frequency
- phase current
- phase curve
- phase delay
- phase detector
