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A growler is an electrical device used for testing insulation of a motor for shorted coils. A growler consists of a coil of wire wrapped around an iron core and connected to a source of alternating current. When placed on the armature or stator core of a motor the growler acts as the primary of a transformer and the armature coils act as the secondary. A “feeler”, a thin strip of steel (hacksaw blade) can be used as the short detector.

Other three are washing machine and saucepan type machine is a blender used as dishwasher.

The horizontal layer of brick masonry unit is termed course and the horizontal distance between vertical joints in successive courses in a brick masonry called a lap.

The vertical member between two treads is called a riser. The vertical member supporting the hand rail is termed the bulluster.

For the purely resistive circuit, the power factor is 1 (perfect), because the reactive power equals zero.

Inter poles in dc machines help to reduce armature reaction effects in the inter polar regions and their windings are connected in series with the armature so that its effect can vary with the armature current. … Its windings are connected in series with the armature winding.

The phase has connected to the common pole of the first switch. The 1st throw of the switch has connected to load. And the 2nd throw has connected to the common pole of the next switch. Initially, common poles of all the switches are positioned to the 1st throw of the SPDT switch. So in such an arrangement, changing the switch position to 2nd throw OFF?s previous load and ON the next one. By this arrangement, an infinite number of loads can be connected in a sequence.

The jog circuit is important to create a circuit that will allow the operator to momentarily energize the circuit without the need of pressing the stop pushbutton. Jog circuits allow the operator to move loads to a set position preventing the load from over traveling to the desired position. The jog circuit can be used in almost any control circuit because it relies on momentary energizing and de-energizing of the pilot device.

A star delta starter is the most commonly used method for the starting of a 3 phase induction motor. In star delta starting an induction motor is connected in through a star connection throughout the starting period. Then once the motor reaches the required speed, the motor is connected in through a delta connection.

The pole pitch is defined as peripheral distance between center of two adjacent poles in dc machine. This distance is measured in term of armature slots or armature conductor come between two adjacent pole centers. This is naturally equal to the total number of armature slots divided by number of poles in the machine.

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