PAD AS 2379349 - Caterpillar

alternately:in one direction then the other.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.considerably:By a large amount.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 quanitity 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.inadvertently:Without care.individually:One at a time.induce (to):To send DC current to a coil and make a magnetic field.induced:Caused.instability:Without stability.instrumentation:group of instruments.insulated:A component with insulation.intermittently:At intervals.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.methodically:Carefully.module:An assembly of electronic components and circuits.moisture:The water content in the air.momentarily:For a moment.numerically:In order by number.operational:Ready for operation.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.possibility:Chance.probability:Chance. proportionately:With a direct ratio.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.relatively:By comparison.reset:To put a switch in a ready condition.reciprocating:movement in a straight line first one direction then the other.residual magnetism:The characteristic of a magnet after removal of excitation.saturable reactor:Acts as a valve, as load changes, valve opens or closes to give more or less current to the rectifier.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