THis quiz is for my father and his work with the linesmen company so he can practice his work and quiz himself.
Conductor Line
Voltage in the Line
Current in the Line
Power factor of the load
120
240
180
208
100%
104.5%
95.9%
95.5%
Phase to ground voltage
Zero
Phase to neutral voltage
Phase to phase voltage
Open the primary disconnects
Ground the secondaries
Use the consumer service equipment to remove the load
Set the tap changer to 100%
They cannot be operated on a reduced load emergency
Higher initial cost
They require more busbar structure and switch gear
They have a slightly lower operating efficiency
Recording meter
Maxl meter
Phase meter
Clip on ammeter
50%
75%
0%
100%
Read name plate of both transformers
Ascertain if primary phase is the same
Open fuse on second transformer and jumper secondaries
Jumper top secondary wire and read voltage between bottom secondaries
Short out primary bushing
Disconnect secondary risers
Tell costumer not to use any electrical equipment
Open the case ground
Eliminate electrical stress at the cable termination
Prevent cable slipping through the throat clips
Eliminate mechanical stress on the cable
Prevent moistiure from entering the cable
9.5%
4.5%
13.5%
2.5%
A fault on one transformer will cause the bank to automically become open WYE opens delta and possibly overload remaining two transformers.
The bank voltage will fluctuate wildly
Unbalanced neutral loading will cause the system fluctuatuion and possibly overload the remaining two transformers.
The bank will work normally.
Increase line resistance to ground
Cause arc over
Increase line voltage to ground
Be detected with the aid of a test lamp
Open the circuit when lightning strikes to the line
Act as open circuit during normal conditions
Limit the current to the ground during the fault
Reliever abnormal low voltage of the line
Should be purged
Heeds to be reset manually
Will close automatically
Needs to have the recloser coil replaced
Current limiting fuse
Reactor
OCR
All of the above
Increase the generator output
Boost the line voltage
Control the amount of load
Buck the line voltage
Connecting low power factor load to the transformer
Taking a single phase load off a three phase line
Two or more secondary distrubution lines are to be tapped off a wye connected primary
Connecting transformers in parallel
Short circuit the secondary of the transformer before removing the ammeter
Connect the secondary of the transformer to the system ground
Short the secondary of the transformer after removing ammeter
De energize the circuit
Placed in paralell with the line
Open circuited
Short circuited
Connected in series with the line
Polypropylene
Nylon
Manila
Dacron
Straggered one on live end, one on dead end
U bolts on dead end of rope
U bolts on live end of rope
None of the above
Peeling paint
A worn spot
Straightening
None of the above
Sequence
Voltage
Resistance
Current
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Here's an interesting quiz for you.