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Why is it necessary to have a no volt protection in motor circuits?
Wiki User
∙ 15y ago
The protection is there to prevent motors starting up on their own after a power failure. This could lead to very unsafe conditions. Also in a big industrial factory if everything started up at once the demand load could trip the main breaker. With the protection in the circuit each and every motor is started up independently.
Wiki User
∙ 15y ago
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A three-wire installation provides a power source for?
Answer for USA, Canada and countries running a 60 Hz supply service.A three wire installation provides a power source for independent 120 volt circuits and 240 volt circuit with neutral.A common 120/240 volt 200 amp distribution service panel can have 42 circuits supplied from it. These circuits can be in any number of different combinations of 120 volts or 240 volts.
When is white wire hot?
In residential wiring, if it is used as a switch leg or in 3 wire 240 volt circuits.
Can you run 110 and 220 volt circuits in the same conduit?
Yes, 120 and 240 volts can be run in the same conduit.
Can you use a 10 amp switch to open a window in a 12 volt dc system?
No, you cannot use a 10 amp switch to open a window in a 12 volt DC system. This is because the switch would not be able to handle the current necessary to power the window motor. The amount of current required to open a window in a 12 volt DC system is typically much higher than 10 amps, and so the switch would not be able to cope with the load. In addition, the switch would not be able to sustain the current necessary to keep the window open, which could lead to the window becoming stuck in the open position. Furthermore, the switch would not be able to handle the circuit protection requirements necessary to keep the window safe. For these reasons, it is not recommended to use a 10 amp switch to open a window in a 12 volt DC system.
Can you run a 24 volt dc motor with 24 volt ac power?
Not usually. But this depends on how the motor is made. So a permanent magnet motor is usually a d.c. Motor. It's something to do as with the wires in the motor, the electromagnet-outer fields are wound.
What is no volt protection in motor circuits?
No Volt protection is a method of motor starting that ensures personal and equipment safety by disconnecting the power from the motor in the event of a power fail. If an isolating switch only was used, following a power cut the device could start without warning, and injury or damage could occur. No Volt protection uses push button switches and contactors wired in such a way that when the power fails, the hold on relay releases and the motor will not start until the operator presses the start button. In most countries this is mandatory, In New Zealand or Austrailia, this is mandated by AS/NZS 3000
Will 220 volt work in a high volt 3 phase motor?
Yes a 208 voltage motor will operate on 220 volts. You have to increase the motor overload protection by 10% of the motor's full load amperage to protect the motor.
What can go wrong with your fridge of 120 volt when it is pluged into 220 volt?
it may cause minor damage, such as burning out the fan motor, if unplugged quickly, or it may fry the compressor or any electronic circuits in the fridge.
How do you calculate volts with volt amperes?
Divide the circuits amperage into the volt amps and you will get the voltage.
Appliances usually run on what volt circuits?
120 volts
Can you use a 3 volt battery to run an 8 volt motor?
You can but the motor may not run, however you will not burn the motor.
How Convert 200 volt to 230 volt?
If a precision voltage is needed from 200 to 230 an auto transformer could be used. If the load is a 230 volt motor to be operated on 200 then add 15% to the nameplate full load amperage for the calculation for overload protection.
Can a put a Receiver from a lower Volt motor to a Higher Volt motor so i can control it with the transmitter i have?
NO
Can you run a 570 volt motor on 480 volt three phase power supply?
No, the voltage difference is too much. A 570 volt motor falls in the 600 volt range which is separate from the 480 volt range of three phase systems.
Can you run 220 volt motor compressor a 380 volt supply using power inverter?
No 380 volts is too wide a spread to use a 220 volt motor on.
Can a 575 volt drive power a 480 volt motor?
No, that is too much.
What is is kva?
kVA is kilo-volt-ampere, which is 1000 x volt x ampere. kVA is the unit of apparent power in AC circuits.
