WorksheetsDelta connection
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
how do we connect a delta system
a)
start of each winding together
b)
end of each winding together
c)
start and end of windings together
2.
phase relationship between line and phase current in delta
a)
0
b)
30
c)
60
d)
90
3.
how many voltages is there in a delta system
a)
1
b)
2
4.
what is the phase relationship between line voltage and phase voltage in a delta system
a)
0
b)
30
c)
60
d)
120
5.
what percentage of power is available if connected in open delta
a)
33.3%
b)
66.6%
c)
50%
d)
57.7%
6.
what will happen if one winding is reversed in delta
(a)
7.
what is classified as a load in a power circuit
a)
circuit breaker
b)
light
c)
motor
d)
RCD
8.
is a delta connected load is unbalanced what supply must it be connected to
a)
star
b)
delta
9.
phase current =
a)
Il
b)
3Ip
c)
3÷Il
d)
Il÷3
10.
how many windings are in a delta connected system
a)
1
b)
2
c)
3
d)
4
100 %
