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What affect does a leading power factor have on alternator generator excitation currents?
When a leading power factor load is applied, the voltage of the genset or genset bus rises, and the voltage regulation system reduces exciter power, reducing the strength of the magnetic field. If the field fails, the generator set may slip a pole, which results in potentially catastrophic alternator damage. pawan
How do you troubleshoot generator that fails to supply ac voltage?
You first use the schematic diagram in the equipment service manual to understand the flow of the power and signals in the generator. The first thing to check is all of the power supply voltages. If one is missing, the generator can fail in such a way as to produce no output. Then you can use an oscilloscope to trace the problem backwards, from the output connector of the generator to to the source of the signal generation.
What do ground do in a circuit?
Circuits are on the ground for a few reasons one is to prevent contact with dangerous voltage if the electrical insulation fails. Also been on the ground limits the build- up of electricity static.
What is a generator transfer switch used for?
A generator transfer switch is used to switch an electrical load between different sources such as grid power and a standby generator or between multiple generators to allow for maintenance of a generator in a set. These switches can be automatic, switching between sources when a source fails or moves out of specification or they can be manual, requiring operator intervention.
How does AMF panel for generator work?
AMF stand for Auto Mains Failure. Generally a generator/alternator power and normal commercial line switching over is done through it. A normal changeover, if mains fails you have switch the load circuit to generator, and when mains restors, generator supply will be cut off and fed to mains. in AMF this done by contactors and control circuits. if you want to know more......
What is critical resistance of the field circuit of a DC generator?
The value of resistance of shunt field winding beyond which the shunt generator fails to build up its voltage is known as " critical resistance at a given speed it is the maximum field resistance with which the shunt generator excite.
Why a dc shunt generator may fail to self excite?
If there is no residual magnetism in the field poles then there would be no flux too induce the initial voltage for self exitation
If a generator capacitor fails will it no longer produce electricity?
No, a generator capacitor failing will not stop electricity production entirely, but it may result in fluctuations in voltage output or cause the generator to stop functioning properly. It's advisable to have the capacitor replaced to ensure the generator operates efficiently.
What happens if excitation fails in parallel oprating generator?
when excitation fails,Reactive power will be supplied by the system to which the generator is connected and generator will work as induction generator and its speed will rise a little. generator which was in over excitation mode will work in underexcitation.but there is under excitation limit which should not be reached so we should detect loss of excitation and trip generator
What affect does a leading power factor have on alternator generator excitation currents?
When a leading power factor load is applied, the voltage of the genset or genset bus rises, and the voltage regulation system reduces exciter power, reducing the strength of the magnetic field. If the field fails, the generator set may slip a pole, which results in potentially catastrophic alternator damage. pawan
How do you troubleshoot generator that fails to supply ac voltage?
You first use the schematic diagram in the equipment service manual to understand the flow of the power and signals in the generator. The first thing to check is all of the power supply voltages. If one is missing, the generator can fail in such a way as to produce no output. Then you can use an oscilloscope to trace the problem backwards, from the output connector of the generator to to the source of the signal generation.
What do ground do in a circuit?
Circuits are on the ground for a few reasons one is to prevent contact with dangerous voltage if the electrical insulation fails. Also been on the ground limits the build- up of electricity static.
What are the negatives about series circuits?
1) If any component fails, then the whole circuit fails. 2) Voltage across any component may be hard to control.
What happen if a prime mover fails when two generators are in parallel?
It acts as synchronous motor by consuming power from the other generator....
Will a voltage regulator kill a battery?
Two things can happen. 1. the voltage regulator fails so that the alternator doesn't know the battery charge is dropping therefore the battery doesn't get charged. 2. The voltage regulator fails in such a way as to allow the alternator to overcharge the battery which causes the battery to overheat and fail, Sometimes an overcharged battery can explode.
How to calculate short circuit protection for transformer?
don't overload it, have a look on the transformer their should be an input voltage and an output voltage if take fails just try and see if u can overload it when you do try and figure out the voltage and get a new transformer;)!!!!!
What is a generator transfer switch used for?
A generator transfer switch is used to switch an electrical load between different sources such as grid power and a standby generator or between multiple generators to allow for maintenance of a generator in a set. These switches can be automatic, switching between sources when a source fails or moves out of specification or they can be manual, requiring operator intervention.
