Glossary
Usage:
- anode:
- The positive end of a diode or rectifier.
- blocking rectifier:
- Permits current flow in only one direction. This keeps the polarity of the exciter in the correct direction.
- bolted:
- Use of a bolt to hold two or more parts together.
- breaker:
- An automatic switch used to open a circuit.
- bridge:
- A circuit used to change AC to DC and to measure small quantities of current, voltage or resistance.
- build-up:
- (Voltage) A gradual increase.
- cathode:
- The negative end of a diode or rectifier.
- capacitance:
- The measure of a capacitors ability to take and hold a charge.
- circulating current:
- The flow of current between two generators working in parallel.
- commutator:
- A part of the shaft used to remove DC voltage for excitation.
- consideration:
- factor.
- continuity:
- A circuit that is not open.
- control:
- One that controls.
- controlled rectifier:
- A rectifier that lets current flow only after it has "turned on."
- DC controlled reactor:
- Gives resistance to current flow to the rectifier according to the voltage droop setting. Same as saturable reactor, DC.
- damping:
- To smooth out.
- de-energize:
- To stop current from going to a component.
- distribution winding:
- An arrangement of windings, in groups that are in several slots, that go from one end of the core to the other end.
- droop:
- Decrease.
- effective:
- Gives the desired effect.
- elementary:
- Simple.
- excitation:
- DC current (controlled) used to make a magnetic field.
- energize:
- To cause current to go to a component.
- electrostatic charges:
- Electricity caused by friction.
- exciter:
- Gives DC current to the field windings of the generator.
- field:
- Magnetic lines of force around a conductor caused by current flow.
- field windings:
- Many turns of wire wrapped around an iron core. When a DC current flows through the field windings it causes a magnetic field (like that of a bar magnet).
- flashing:
- A process of putting DC current, from an outside source, into the field windings to get residual magnetism.
- fluctuate:
- change.
- flux:
- Magnetic lines of force.
- full wave rectifer:
- Changes AC to DC current.
- gain:
- A change in quantity of voltage.
- gate:
- An electronic part of a controlled rectifier (thyristor).
- generate:
- To make electricity.
- grounded:
- To make a connection to ground or to a component with similar effect.
- impedance:
- A combination of resistances.
- induce (to):
- To send DC current to a coil and make a magnetic field.
- induced:
- Caused.
- instrumentation:
- Group of instruments.
- insulated:
- A component with insulation.
- leads:
- Wires.
- line voltage:
- The output voltage of the generator.
- lock in:
- When a contact closes to keep a solenoid energized.
- lock out:
- When a contact opens to keep a solenoid de-energized.
- magnetic:
- Having the characteristics of a magnet.
- magnification:
- Make larger.
- module:
- An assembly of electronic components and circuits.
- moisture:
- The water content in the air.
- phase winding:
- Group of generator stator coils in which electric power for the load is induced.
- polarity:
- The positive or negative characteristics of two poles.
- pulsating:
- Characteristic of rectified current similar to mechanical vibration.
- radio suppresion:
- Reduce the cause of radio frequency interference.
- regenerative power:
- Power that works against the primary power.
- reset:
- To put a switch in a ready condition.
- saturable reactor:
- Acts as a valve, as load changes, valve opens or closes to give more or less current to the rectifier.
- reciprocating:
- Movement in a straight line first one direction then the other.
- residual magnetism:
- The characteristic of a magnet after removal of excitation.
- saturated:
- Magnetized to the point where an increase in current will give no increase in magnetic force.
- satisfactorily:
- Correctly.
- SCR:
- Silicone Controlled Rectifier (semiconductor)
- selinium (Se):
- A metallic (like metal) element the with electrical characteristic of being a semiconductor.
- semiconductor:
- Components like, transistors, diodes, thyristors, etc. Has electrical characteristics between a conductor and insulation.
- short:
- Any connection between two or more components that is not desired.
- shutdown:
- When the engine is stopped either automatically or manually.
- simultaneous:
- At the same time.
- solid-state:
- An electronic component with no moving parts.
- surge:
- A sudden increase in voltage or current.
- tap:
- Connection to get power from a circuit.
- tested:
- When a test has been made.
- transient peak voltage:
- A high voltage condition for a short time period.
- turn-on:
- To start, as current flow through the controlled rectifier; to activate.
- voltage droop resistor:
- Variable resistor for control of voltage change from full load to no load.
- voltage level resistor:
- Gives wider range of voltage control.
- voltage level rheostat:
- Control for adjusting voltage output level.
- windings:
- Layers of wire on a core.
- wiring:
- The wires of a circuit.
- wound:
- circled.
Caterpillar Information System:
7211 & 7221 MARINE TRANSMISSIONS Main Drive Gear And Output Shaft
7211 & 7221 MARINE TRANSMISSIONS Clutch Hubs
7211 & 7221 MARINE TRANSMISSIONS Ahead (Forward) And Astern (Reverse) Clutches
7211 & 7221 MARINE TRANSMISSIONS Spider
7211 & 7221 MARINE TRANSMISSIONS Oil Manifold
7211 & 7221 MARINE TRANSMISSIONS Selector Valve
7211 & 7221 MARINE TRANSMISSIONS Oil Filter
7211 & 7221 MARINE TRANSMISSIONS Magnetic Strainer
7211 & 7221 MARINE TRANSMISSIONS Oil Pump
7211 & 7221 MARINE TRANSMISSIONS Testing and Adjusting
7211 & 7221 MARINE TRANSMISSIONS Systems Operation
7211 & 7221 MARINE TRANSMISSIONS Control Valve (3T2295)
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Systems Operation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Testing And Adjusting
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Introduction
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Generator Drive Assembly Removal And Installation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Belt And Belt Guard Removal And Installation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Generator Pulley Removal And Installation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Generator Bearing Removal And Installation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Generator Rotating Field Removal And Installation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Generator Brush Yoke And Holder Removal And Disassembly
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Generator Field Poles Removal And Installation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Exciter Removal And Installation
SRCV GENERATOR (SELF-REGULATED CONSTANT VOLTAGE) Exciter Front Bearing Removal And Installation