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19 Cards in this Set
- Front
- Back
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How does self-excitation work? |
Field flash takes 12v from the battery to charge rotor windings for inital startup until Q1 & Q2 (Quad windings) start making volts which gets induced into the rotor. (takes about 3 seconds) |
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What do the B-Windings Do? |
The B-Windings are producing AC Voltage that is rectified into DC Voltage for 1 amp battery charging. |
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What is the Stationary Windings called? |
Stator |
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What is the Rotating Windings Called? |
Rotor |
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The amount of voltage and current flow induced into the stator windings depends on? |
1. The rotors magnetic Field 2. Rotors Rotational Speed 3. The number of turns of wire in the stator. |
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What are the two types of air cooling on a generator? |
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What are the two types of lubrication systems on a generator? |
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On what oil system has a Low Oil Switch? |
Splash System (Non-Pressurized) |
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On what oil system has a Oil Pressure Switch? |
Pressurized Oil System |
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Which oil system has an Oil Filter? |
Oil Filters are only on Pressurized Systems. |
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What does a Choke do on the Carburetor |
A choke reduces the air to the carburetor, providing a richer fuel mixture for cold starting. |
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Three types of oil filters are? |
Dry, Oil Bath, and Foam |
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How does the electric choke operate? |
The Electric choke consist of a bimetal coil that opens and closes with the bimetal affected by the exhaust temperature. |
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Explain the LP Gas Low pressure system |
Takes high pressure propane from the container to the generator through a dedicated two stage regulator located on the generator. |
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What is the Formula to find out the total area of screen for ventilation. |
100 ------- x RA FA FA = Free Air Space RA = Required Air Space |
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Resistance of a circuit increases. |
current flow will decrease as resistance increases. |
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The Voltage regulator will respond to an increase in engine RPM by? |
Decreasing the field winding voltage. |
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Excitation in a generator is |
DC current applied to the rotor. |
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What changes to keep the output voltage of a genset constant? |
DC Voltage to slip rings |
