REPAIR KIT-SEAL 5W9439 - Caterpillar

generator.Field - A field is a magnetic line of force that surrounds a conductor. This force is caused by current flow in the conductor.Field Windings - Field windings are many turns of wire that are wrapped around an iron core. When direct current (DC) flows through the field windings, a magnetic field is produced. This magnetic field is comparable to the magnetic field of a bar magnet.Flashing - Flashing is a process of putting direct current from an external source into the field windings. This process causes the generator to produce an output voltage.Flux - Flux is magnetic lines of force.Frequency - Frequency is the number of cycles that are completed in a one second period. The unit of frequency is the Hertz (Hz). 1 Hz is equal to 1 cycle per second.Full-Wave Rectifier - A full-wave rectifier changes the positive phase and the negative phase of alternating current to direct current.Gain - Gain relates to the ratio of input magnitude to output magnitude.Gate - A gate is an electronic part of a controlled rectifier (thyristor).Generate - The production of electricity.Grounded - A device is grounded by making a connection to ground. A device could also be grounded by making a connection to a component that is connected to ground.Hertz (Hz) - Hertz is the unit of measurement for frequency. 1 Hz is equal to 1 cycle per second.Humidity - Humidity is the water content that is present in the air.Impedance - Impedance is the resistance to alternating current.Impulse Modulation - Impulse modulation changes the following characteristics of a wave: amplitude, frequency and phase. This condition is accomplished by impressing one wave on another wave that has constant properties.Induce - Induce refers to the transfer of power from one device to another device. The transfer is done via a magnetic field or via an electric field.Interference - Interference is an unwanted mixture of electrical signals. Interference is associated with electrical noise.Internally Excited (IE) - Is an excitation system based on two auxiliary windings integrated into the main stator winding suppling power to the voltage regulator only.Instrumentation - Instrumentation is a group of instruments that are used for measuring a system function.Insulated - An insulated device is a device that is covered with a nonconductive material.kVA - The abbreviation for Kilovolt Amperes. kVA is a term that is used when electrical devices are rated. In order to calculate the kVA rating of a device, multiply the rated output (amperes) by the rated operating voltage. KVAR - Kilovolt Amperes Reactive is abbreviated as KVAR. KVAR is associated with the reactive power that flows in a power system. Reactive power does not load the generator set engine. Reactive power will cause thermal loss in the generator.KVAR Regulation - KVAR Regulation is one of the two methods that are used to regulate the reactive power output. Regardless