3 phase power
Authored by Leonie Davies
Professional Development
Professional Development
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is the frequency of power in a fundamental three phase supply
150hz
50hz
60hz
300hz
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is a KWh meter used for
charge for electricity
fault finding
home efficiency
supply current
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
how do we determine equipment to be installed based on size of consumer mains
supply authority
maximum demand
CB size
length
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
when would we most likely use a 3 wattmeter method to measure power
balanced load
star
unbalanced load
delta
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
what is added into our equation for 3 phase power
x3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
motors are rated
kVA
KVAr
Kw
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
transformers are rated
kVA
KVAr
Kw
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