Due to inductance there is a spike in output voltage
Vehicle spark plug ignition.
A transient voltage is a time varying voltage value. Transient says that the voltage value changes, especially from a steady state, to a new value, then back again.
A transient, surge, spike, etc.
The AVR (automatic voltage regulator) measures the generator voltage output and varies the field voltage (which varies the strength of the rotating magnetic field) to maintain a fixed output voltage. Some generators excite (power) the AVR and field windings from the main stator, some provide a separate stator winding just for field excitation, and others provide a separate stator winding and rotating permanent magnets (called PMG) for field excitation. The generators that do not have permanent magnets rely on residual magnetism for the initial voltage to start the system or may provide initial voltage from the engine's starting battery.
When relay is turned the magnetic field that surrounds the coil collapses. When the current goes down rapidly the voltage goes up rapidly. A diode is placed across the coil, to dissipate this spike in voltage, in order to prevent damage to semiconductor components.
Probably not. That is a very dangerous test. You create a voltage spike when unhooking the cable with the engine running. This spike could damage any of the computers on the car. The proper way to check an alternator is by it's output voltage when under load.Probably not. That is a very dangerous test. You create a voltage spike when unhooking the cable with the engine running. This spike could damage any of the computers on the car. The proper way to check an alternator is by it's output voltage when under load.
Only if there's a 'load' across the voltage.
Surge voltage, voltage step, voltage spike
Vehicle spark plug ignition.
A transient voltage is a time varying voltage value. Transient says that the voltage value changes, especially from a steady state, to a new value, then back again.
Defective voltage regulator.
excessive voltage usually. can be caused by a voltage spike at the alternator, a computer sending too much voltage, or poor wiring
an upper triangle no not really spike its a circle
A transient, surge, spike, etc.
A Spike is a sudden increase in voltage that lasts for a very short period and exceeds 100% of the normal voltage on a line. Spikes can be caused by lightning strikes, but can also occur when the electrical system comes back on after a blackout.
A spike is a sudden rise in current that then goes back to normal. Usually caused by a sudden increase in voltage that could be caused by a lightening strike, for example.
to maintain control voltage during power loss or spike