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How motor can control using timer contactor?
Control means, a timer cant control is speed directly, it can control its operation. A times will have NO nd NC contacts. Connect the motor in series with the timer contacts wrt desired operation
Does a star delta timer rely on the breaking of the retaining contacts on the star contactor side?
The N.C. (timed open) contacts in the star delta timer energize the star contactor's coil when the system is energized. At the same instant the system is energized, the timer starts to time down the required time which lets the motor get up to speed in the star configuration. When the timer reaches the set point time, a second set of N.O. (timed closed) contacts close the delta contactor's coil and open the N.C. timed contacts of star contactor's coil. The motor now runs in the delta configuration. When the system is de energized the timer contact's reset to its de energized state.
What is the purpose of a timer wired into the compressor contactor control circuit on a refrigeration system?
A defrost control typically.
What is the difference between main contactor and axualiary contactor?
The load contactor is what the motor load is usually connected to. The auxiliary contacts are usually used in the stop start remote wiring to seal the mag in. Auxiliary contacts are also used to transmit the status of the contactor to a PLC.
How many wires to control a mechanically held contactor?
A contactor is a type of switch. However this switch uses electricity to power an electromagnetic coil to switch on or off power. Hence a contactor needs 2 wires - A live/hot wire and a neutral wire. Generally these are connected across the A1 and A2 terminals of the contactor.
What would happened if you wired a 240v ballast and a 120 v ballast into a heavy duty timer?
The timer has to be multi-pole. The ballast must be connected to the load contacts of the timer. If the timer is a 120 Volt timer, the timer has to run on a 120V. circuit. Loads are loads, and as long as you have a multi-load timer you can hook up whatever you want. If the timer only works on a shared power source (load shares the timer supply) you will need to use a contactor on the load side or the timer.
How motor can control using timer contactor?
Control means, a timer cant control is speed directly, it can control its operation. A times will have NO nd NC contacts. Connect the motor in series with the timer contacts wrt desired operation
Why star delta timer required for motor?
The timer is used to give the motor time to reach its running speed at the star voltage. Once the timer times out the star contactor drops out and the delta contactor pulls in.
How do you wire 3 timers to one outlet using contactor?
A timer is a type of contactor. My answer assumes you do not need an additional contactor besides the timers and the timers are operated by the same circuit as the outlet. Each timer and the outlet need connections to the neutral and grounding conductors of the circuit. For the hot wires, you have to run your hot feed to each of the timers on the "line" side of the contacts. If the timer and the "line" side of the contacts are different connections you will have 2 connections in each timer. Then from the "load" side of the contacts you run wires that connect to the hot side of your outlet. At some point you will splice these together so you have only one hot wire connection to the outlet. Remember that timers, contactors, relays, etc., are simply switches operated by various means. You have the hot feed on one side and the "switch leg" to your load. You also have a control of some kind, and in your case your controls are the timers.
How do you wire timer to 3 parallel switches?
To wire a timer to 3 parallel switches, connect the hot wire from the power source to the common terminal of each switch. Then connect the traveler wires from each switch to the timer input terminal. Finally, connect the load wire from the timer output terminal to the fixture being controlled. Make sure to follow the manufacturer's instructions for your specific timer model.
How do you wire an outdoor timer into a GFCI outlet?
I assume you are hard wiring it and not plugging it in. The power coming into the GFCI outlet connects to the line side of the GFCI outlet. If you want the outdoor timer protected by the GFCI then connect the wire going to the timer to the load side of the outlet. If you do not want the timer protected then connect it to the line side. On the back of the GFCI if you look closely you will see Line & Load marked on the back.
How does magnetic contactor operate?
explain me about the contactor works with examples. if i want to control a motor with contactor. and how i can use contactor in loops with over load and circuit breakers.
What is the imporatance in using wyne delta motor control?
the important is contactor, timer, olr.....
Which side of a motor contactor should the overload contact be placed?
On the load side of the contactor. T1,T2,T3.
What is the difference between a motor starter and a contactor?
Motor started will have overloads the contactor connect es line voltage.
Does a star delta timer rely on the breaking of the retaining contacts on the star contactor side?
The N.C. (timed open) contacts in the star delta timer energize the star contactor's coil when the system is energized. At the same instant the system is energized, the timer starts to time down the required time which lets the motor get up to speed in the star configuration. When the timer reaches the set point time, a second set of N.O. (timed closed) contacts close the delta contactor's coil and open the N.C. timed contacts of star contactor's coil. The motor now runs in the delta configuration. When the system is de energized the timer contact's reset to its de energized state.
What is the purpose of a timer wired into the compressor contactor control circuit on a refrigeration system?
A defrost control typically.
