what is the frequency of power in a fundamental three phase supply

• 150hz

• 50hz

• 60hz

• 300hz

what is a KWh meter used for

• charge for electricity

• fault finding

• home efficiency

• supply current

how do we determine equipment to be installed based on size of consumer mains

• supply authority

• maximum demand

• CB size

• length

when would we most likely use a 3 wattmeter method to measure power

• balanced load

• star

• unbalanced load

• delta

what is added into our equation for 3 phase power

• x3

motors are rated

• kVA

• KVAr

• Kw

transformers are rated

• kVA

• KVAr

• Kw

capacitors power rating is

• kVA

• KVAr

• Kw

what components consume power

what does OP stand for

• off power

• off phase

• off program

• off peak