Deepakkumar Yadav
Direct online Line Stater or DOL Motor Starter The Direct On Line starter is the simplest form of motor starter. The direct online starter is a basic and simple starter used for starting the induction motor. In DOL Starter the stator winding of the induction motor is directly connected to three phase supply voltage. Thus, … Read more
Potential Transformers These transformers are extremely accurate-ratio step-down transformers and are used in conjunction with standard low-range voltmeters (usually 150-V) whose deflection when divided by voltage transformation ratio, gives the true voltage on the high voltage side. In general, they are of the shell-type and do not differ much from the ordinary two-winding transformers discussed … Read more
Dimmers Different lamps/luminaires produce light with constant brightness once they are switched on. For the following spots, the variation of brightness of the lamps is required. For (i) Photo studios (ii) Stage (iii) Drama theatres (iv) Decorations (v) Various functions. The device for controlling the brightness is a “Dimmer”. Dimmer is an electrical and or … Read more
Dimmers Different lamps/luminaires produce light with constant brightness once they are switched on. For the following spots, the variation of brightness of the lamps is required. For (i) Photo studios (ii) Stage (iii) Drama theatres (iv) Decorations (v) Various functions. The device for controlling the brightness is a “Dimmer”. Dimmer is an electrical and or … Read more
Dimmers Different lamps/luminaires produce light with constant brightness once they are switched on. For the following spots, the variation of brightness of the lamps is required. For (i) Photo studios (ii) Stage (iii) Drama theatres (iv) Decorations (v) Various functions. The device for controlling the brightness is a “Dimmer”. Dimmer is an electrical and or … Read more
DOL Stater A DOL starter (or Direct On Line starter or across the line starter) is a method of starting of a three phase induction motor. In DOL Starter an induction motor is connected directly across its three phase supply, and the DOL starter applies the full line voltage to the motor terminals. Despite this … Read more
Dimmers Different lamps/luminaires produce light with constant brightness once they are switched on. For the following spots, the variation of brightness of the lamps is required. For (i) Photo studios (ii) Stage (iii) Drama theatres (iv) Decorations (v) Various functions. The device for controlling the brightness is a “Dimmer”. Dimmer is an electrical and or … Read more
Dimmers Different lamps/luminaires produce light with constant brightness once they are switched on. For the following spots, the variation of brightness of the lamps is required. For (i) Photo studios (ii) Stage (iii) Drama theatres (iv) Decorations (v) Various functions. The device for controlling the brightness is a “Dimmer”. Dimmer is an electrical and or … Read more
Dimmers Different lamps/luminaires produce light with constant brightness once they are switched on. For the following spots, the variation of brightness of the lamps is required. For (i) Photo studios (ii) Stage (iii) Drama theatres (iv) Decorations (v) Various functions. The device for controlling the brightness is a “Dimmer”. Dimmer is an electrical and or … Read more
DOL Starter Control and Power Wiring Diagram The Direct On Line Motor Starter (DOL) consist a MCCB or Circuit Breaker, Contactor and an overload relay for protection. Electromagnetic contactor which can be opened by the thermal overload relay under fault conditions. Typically, the contactor will be controlled by separate start and stop buttons, and an … Read more