3 Phase Isolation Transformer is a transformer, which has isolated primary and secondary windings to allow the power input to isolate from the power output. Isolation transformers are referred as insulated, because the windings are insulated from each other.

3-Ring Binder Marking System is a convenient and economical method of identifying the equipment. The pressure sensitive numbers, letters, KVA and voltage markers are printed on die cut sheets are designed to fit into a 3-ring binder. All markers are screen printed with fade-resistant black ink and available on either 3M-engineer grade yellow reflective film or high-tack yellow outdoor vinyl over laminated with polyester to assure outstanding weather ability. Reflective markers should be applied at temperatures above 40° F whereas the vinyl markers may be applied below 32° F.

AC/DC adapters accept AC input voltage directly from a wall outlet, and output DC voltage. The primary configurations are wall-mount, where the adapter unit plugs directly into a wall and the DC lead then goes to the DC device, and desk mount, where the adapter unit is in-line between the AC plug and the DC output. Many DC devices use this type of adapter or power supply such as household items, printers and low-voltage DC boards.

AC contactors are used for making and breaking circuits. These are fitted with coils that, at initial switch-on, use conventional AC supply voltages to close the contactor. As the contactor closes a switch automatically operates introducing a circuit that converts the mains voltage to 12 volts DC.

AC drive controller is an electronic power converter/filter/inverter network that utilizes high-efficiency power semiconductor switches to synthesize variable frequency sine-wave power to the motor. It consists of a phase assembly for each phase of a polyphase supply to a motor. Each phase assembly consists of an invertor module and a corresponding filter module.

There are two types of AC electric motors; the synchronous motor and the induction motor. It can also be divided into single phase and three phase motors. Single phase AC electrical supply is what is typically supplied in a home. Three-phase electrical power is commonly only available in a factory setting.

AC generator consists of a permanent magnet that rotates inside a coil in such a way that the N-pole and S-pole alternate as seen from the coil. An AC generators are capable of providing high current output even at low engine speeds. These AC generators use a design that is basically the reverse of a DC generator. In an AC generator, a spinning magnetic field rotates inside an assembly of stationary conductors. AC generator includes two sip rings mounted directly on the rotor shaft. These generators use three windings to generate the required amperage output.

An AC induction motor is the most commonly used AC motor in industrial applications because of its simplicity, rugged construction, and relatively low manufacturing costs. The reason that the AC induction motor has these characteristics is because the rotor is a self-contained unit, with no external connections. This type of motor derives its name from the fact that AC currents are induced into the rotor by a rotating magnetic field. The AC induction motor is made of a laminated cylinder with slots in its surface. The windings in the slots are one of two types. The most commonly used is the squirrel cage rotor. This rotor is made of heavy copper bars that are connected at each end by a metal ring made of copper or brass. No insulation is required between the core and the bars because of the low voltages induced into the rotor bars. The size of the air gap between the rotor bars and stator windings necessary to obtain the maximum field strength is small.

AC Parallel Shaft Gearmotor is a permanent split capacitor. It is categorized into non-synchronous and normal slip. Its ambient temp is 40c and 2.87″ of length.

AC Relays are solid magnetic cores. AC relays are energized satisfactorily on dc with a slowed up response due to the shading coil. AC relays operate on about 9 volt-amperes with coils up to 115 volts. These AC relays are built-in silicon, germanium diodes or copper oxide rectifiers depending on the performance requirements.

AC Right Angle Gearmotors are geared with hardened steel worm and forged bronze gear. It is lubricated with precision-machined die cast aluminum lubrication. These motors are supplied with mounted junction box, capacitor and rear extension for brake.

AC synchronous generators are generally used as stand-by electric power supply for domestic purposes and also as isolated power supply in remote and hilly areas where grid supply is not available. It is coupled to a prime mover like internal combustion engine, or wind turbine for using as generator set. Brushes and slip-rings are used in the machine to tap out the power.

AC variable frequency drive is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable speed drive. Variable frequency drives are also known as adjustable frequency drives (AFD), variable speed drives (VSD), AC drives or inverter drives. A variable frequency drive system generally consists of an AC motor, a controller and an operator interface. The motor used in a VFD system is usually a three-phase induction motor. Variable frequency drive controllers are solid-state electronic power conversion devices. The usual design first converts AC input power to DC intermediate power using a rectifier bridge. The operator interface provides a means for an operator to start and stop the motor and adjust the operating speed.