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CLARIFICATION AND ANSWER: 1. STARTING CURRENT PRODUCED ONLY BY ITS LOAD NOT SOURCE(SAY STEPDOWN TRAFO) 2. IF THE INDUCTION MOTOR IS THE ONLY LOAD OF THE STEP DOWN TRANSFORMER (SOURCE)-THE READING WILL BE AND SHOULD BE THE SAME IN THE SECONDARY SIDE UNLESS YOUR AMMETER IS IN THE PRIMARY SURELY WILL READ LOWER BUT POWER CONSUMPTION REMAINS THE SAME. 3. IT ALSO DEPENDS ON THE RATING OF THE MOTOR LOAD AND THE TYPE OF STARTING METHOD USED THAT YOU CAN MEASURE STARTING CURRENT.
What else can I help you with?
What size transformer do you need to start a 15 hp motor?
To start a 15 hp motor, you typically need a transformer that can handle the motor's starting current, which can be significantly higher than its running current. Generally, the starting current can be 6 to 8 times the full-load current of the motor. For a 15 hp motor, the full-load current is about 18-20 amps at 230V or 10-12 amps at 460V, so the transformer should be rated to handle at least 100-160 amps. Additionally, it's advisable to consult the motor's specifications and consider factors like starting method and application to determine the exact transformer size.
Which motor has a higher starting torque?
A series-wound commutator motor has the best starting torque because the torque is proportional to the square of the current, and the starting current is set by a current-limiting resistor which is switched out as the motor builds up speed.
What is the difference between protective current transformer and metering currrent transformer?
Usually nothing. The only difference is what it is connected to and operates. The leads from the current transformer could power a meter for remote indication or a protective relay to trip the system offline.
Why is the motor of the transformer locked?
The only motor associated with a transformer is an on-line tap changing mechanism motor! So your question doesn't really make any sense!
Can 208 V single phase power a 220 V single phase motor?
This is a 15% overvoltage to the motor, which is generally outside the specifications for a motor spec'd at 208v (typically up to 10% overvoltage is tolerable). Your 240 volt source may be as much as 105% of 240 / 252 volts at times. A buck/boost transformer should be used, unless the motor is designed to be used at 240 volts.
What devices transformer electrical energy into mechanical energy?
An electric motor, such as a starting motor
What size transformer do you need to start a 15 hp motor?
To start a 15 hp motor, you typically need a transformer that can handle the motor's starting current, which can be significantly higher than its running current. Generally, the starting current can be 6 to 8 times the full-load current of the motor. For a 15 hp motor, the full-load current is about 18-20 amps at 230V or 10-12 amps at 460V, so the transformer should be rated to handle at least 100-160 amps. Additionally, it's advisable to consult the motor's specifications and consider factors like starting method and application to determine the exact transformer size.
What is the mechanism of converting DC current in to AC current?
There are two primary methods: Number one, use a DC motor to drive an AC generator. Number two use an inverter, which uses integrated circuits, power transistors and a transformer to generate AC currrent.
Why the no-load current of an induction motor is high compared to a transformer?
Because of the presence of the air-gap between stator and rotor in motor the magnetization current is much higher than that of a transformer in addition to the friction and windage losses due to the rotation of the rotor.
What is the cable size for 2 nos of 200kW 3 phase induction motor for pumping station with starting method of auto-transformer starting?
Please define "2 nos".
Difference between transformer and induction motor?
1. Induction Motor has an air-gap but transformer has no air gap rather it is mutually link. 2. Induction Motor has high no-load current than transformer. 3. Induction Motor is a dynamic device. 4. Induction Motor has high power factor.
Which motor has a higher starting torque?
A series-wound commutator motor has the best starting torque because the torque is proportional to the square of the current, and the starting current is set by a current-limiting resistor which is switched out as the motor builds up speed.
How many watt transformer is needed for 2.5 amp motor?
A 60-watt transformer would be sufficient for a 2.5 amp motor, as a general rule of thumb is to multiply the amps by the voltage to determine the power rating in watts. At standard household voltage (120 volts in North America), 2.5 amps x 120 volts = 300 watts. However, it's recommended to use a transformer with a slightly higher wattage to account for potential power surges or fluctuations.
How can you rewire your 220 volt motor to run on 120 volts?
If a motor is designed to run on different voltages there will be a wiring diagram on motor plate for 120 volt wiring. If not you will have to use a step up transformer to convert 120 V to the higher voltage.
What is the difference between protective current transformer and metering currrent transformer?
Usually nothing. The only difference is what it is connected to and operates. The leads from the current transformer could power a meter for remote indication or a protective relay to trip the system offline.
Why is the motor of the transformer locked?
The only motor associated with a transformer is an on-line tap changing mechanism motor! So your question doesn't really make any sense!
How do you load a transformer?
Anything that draws energy from a supply is a load. So you 'load' a transformer by attaching a lamp, a motor, etc., to the transformer's secondary windings.
