decribe two causes of higher than normal starter current draw
No. There is an excessive current draw, possibly in the form of a short circuit. Get an electrician to check it and fix it before you set fire to house.
Locked rotor current is the amount of current a motor would draw if you energize the motor and the rotor (the spinning shaft) doesn't spin.
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Maximum current is defined by the rated KW of the device, say Motor. The motor may not run at its maximum rated capacity all the time. Nominal current is drawn when motor runs at nominal load.
Current draw and length.
Remove starter and bench test it for operation and current draw
25amps
Either a short to ground, or too much current draw in that circuit.Either a short to ground, or too much current draw in that circuit.
Over load in circuit? Remove starter and have it checked at auto parts for excessive current draw Dead short to ground in circuit? Over load in circuit? Remove starter and have it checked at auto parts for excessive current draw Dead short to ground in circuit?
Generally, you need a new one when the old one doesn't work properly. Oftentimes, a starter current draw test can be used to check for a bad starter.
Yes, but eventually your started will cease to work?
A typical starter motor draws around 50 to 150 amps while cranking an engine. If the current draw is significantly higher or lower, it may indicate a problem with the starter motor or the electrical system.
The wires to a starter motor are very large to accommodate the high current required to start the engine. During cranking, the starter motor can draw a significant amount of current, often exceeding 100 amps. Larger wires reduce the resistance and minimize voltage drop, ensuring that sufficient power reaches the motor for effective starting. Additionally, thicker wires help prevent overheating and potential damage during the high-current draw.
The bulb with the lowest resistance. Current = Volts / Resistance
Get a new starter. It's gone bad and is trying to draw too much power and can cause a fire.
No. As long as the voltage specs match. The load will only draw the current it needs to operate. If the current specs were flipped, 3A adapter on a 5A unit, this would cause problems. The unit will try to draw the 5A it's designed for and smoke the adapter.
Using the formula Power = Voltage x Current, you can rearrange to solve for current: Current = Power / Voltage. Plugging in the values, the hair dryer would draw 10 amps of current (1200W / 120V).