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Difference between two phase and three phase welding machine?
Three phase uses a safety circuit away from the machine, two phases uses you as the safety circuit
Circuit diagram to operate ac machine in forward and reverse direction?
The word you are looking for is Drum Switch. Google it and there are many diagrams.
What is a typical open circuit voltage for an arc welding machine?
I read that it can go up to 80 Volts, any more and it becomes a shock hazard to the operator.
What is discrimination factor of electrical circuit protection?
Electrical discrimination is to do with selecting the correct protection in the fault path of an electrical circuit. To illustrate, if you have a machine at the end of an electircal circuit and that is protected by a 13A fuse lets say, and then you have a 20A circuit breaker protecting that at the consumer unit (fuse board), and then the main switch on the consumer unit is a 10A circuit breaker, then every time the machine uses more than 10A of power the main switch will trip and disconnect everything connected to it, that is where discrimination is not achieved. Basically it is where the circuit protection closest to the macine is smaller and it gets bigger as it goes boack to the source, then discimination is achieved. I hope that helps. If not then it probably need a drawing to help answer.
Why zero sequence current cannot flow through a star connected machine unless the neutral is grounded?
If the neutral point is not earthed than the zero sequence current will not have any return path.It will be an open circuit for the zero sequence circuit.
Is CCTV a machine?
CCTV = Closed Circuit TV. It's a system, not a machine.
Why is a short circuit caused when water is spilled on a machine?
Because water is a conductor, and being fluid as it is, when spilled and falls into the machine, makes contact between or within a circuit that completes the circuit short.
Difference between two phase and three phase welding machine?
Three phase uses a safety circuit away from the machine, two phases uses you as the safety circuit
Where does the energy of a washing machine come from?
The electric circuit that feeds it
What is sequential logic?
Any circuit that converts binary information into machine readiable form is called sequential circuit
What is typical open circuit voltage for an arc welding machine?
voltage available to the welding current via the machine
Can you piggyback 4 convenience outlets on a 20 amp dedicated circuit for washing machine which is rated 8 amps?
This is not a good idea. The washing machine current will surge when motor is started. a 20 Amp dedicated circuit is recommended for a washing machine.
Is it possible to load a shunt generator to short circuit and not injure the machine?
A
If you have a machine that draws 5 amps can it be used on a 30 amp circuit?
Yes
What is the most largest and important circuit board in a computer?
The largest and "most important" circuit board in a computer is the so-called motherboard of the machine. It's the central or primary printed circuit board, and it is the real estate onto which the microprocessor (the "brain" of the machine) and just about everything else plugs on, in or to.
What number wire do you use to wire a washing machine outlet?
A 2C #14 will be suffice but it should be the only device on the circuit. This is known as a dedicated circuit.
What happens when the field circuit gets opened while the dc machine is running?
the f
