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Ph3ng
  • Member for 5 years, 3 months
  • Last seen more than 2 years ago
3 votes
1 answer
232 views

What does the % symbol mean on plc addresses?

2 votes
1 answer
11k views

Why don't the currents clash in a 3 phase delta connection?

2 votes
1 answer
171 views

Does using only 2 phases (400V) in a 3 phase transformer affect anything?

2 votes
2 answers
8k views

Why is the air gap between the stator and rotor on a motor kept as small as it is?

2 votes
0 answers
450 views

Why should the primary winding of the transformer not be grounded?

2 votes
3 answers
298 views

Why are plug tops rated 16A and not 17, 18 or 19A?

2 votes
2 answers
1k views

How is it possible to use a phase as a return path?

2 votes
1 answer
295 views

Why do we ground the common probe on a 3 probe liquid level sensor?

2 votes
2 answers
2k views

Why is a Current Transformer always connected to ground?

1 vote
1 answer
1k views

What causes horsepower and torque to remain the same in a dual speed (single winding) motor?

1 vote
2 answers
75 views

Why don't motors coupled to gearboxes spike up significantly?

1 vote
3 answers
2k views

How is a higher torque achieved in a single phase cap-start cap-run motor?

1 vote
1 answer
2k views

Does the motor speed change with the fully automatic star(wye)/delta starter?

1 vote
3 answers
510 views

Apart from speed, do VSD's also alter current?

1 vote
1 answer
296 views

Why does the V/Hz ratio of a motor affect the magnetic field strength?

1 vote
2 answers
3k views

Does only wiring 2 poles of a 3 pole overload relay have any effect?

1 vote
2 answers
4k views

Why does the Dual Speed Dahlander motor need a bridge in the fast speed configuration?

0 votes
1 answer
40 views

What affects the current ratings on constant torque pole changing motors?

0 votes
2 answers
151 views

What do you do to help you grasp a concept or understand something you're seeing for the very first time?

0 votes
2 answers
647 views

How do 100mA ELCBs provide human protection?

0 votes
1 answer
287 views

How does DC braking stop an AC motor without considering current direction?

0 votes
2 answers
2k views

Why do stoves need not be connected under the earth leakage?

0 votes
2 answers
155 views

What is the purpose of a 380/220V control transformer when you could just use one phase and a neutral for your motor control circuit?

0 votes
0 answers
248 views

What do the white and green colours on the earth leakage CB denote?

0 votes
1 answer
478 views

Does an NPN Capacitive proximity sensor exist?

0 votes
1 answer
95 views

What actually kicks in a VFD?

0 votes
1 answer
209 views

How do you set up a VFD to run a motor at 2 different speeds?

0 votes
1 answer
2k views

Why is the delta connection called constant kilowatt and the star connection called constant torque in pole changing motors?

0 votes
2 answers
1k views

Why does the Slipring Motor speed increase with a decrease in resistance?

0 votes
1 answer
469 views

What does the 20-80A rating on an energy meter mean?