0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
All motor currents flowing through either the forward or reverse contactors must flow through?
All motor currents flowing through either the forward or reverse contactors must flow through the overload device before going to the motor.
Why is it the control of a three phase motor trips when changing from wye configuration to delta?
Few things to look for, one, are the contacts good on the run contactors. Two, has the motor wiring been changed in any way, contactors or leads on motor. Trace wiring and make sure the leads are paired correctly to the starters. Three, make sure the start timer is not bringing the run contactors in too late. Also check that the shorting contactor is opening when the run contactor comes in.
What Autoclave parts and function?
CHAMBER JACKET STEAM GENERATOR STEAM TRAP VALVES ELECTRICAL COMPONENTS CONTACTORS HEATERS
What is the tylakoid?
it is a membrane. a membrane of a chloroplast.
Is the outer membrane continuous with the thylakoid membrane?
the outer membrane is not continuous with the thylakoid membrane
What is the Difference between auxiliary contactor and power contactors?
Power contactors are used primarily for more sophisticated equipment that need several different points of contact. Auxiliary contactors are primarily for single connections.
What size of contactors used for 20hp star-delta starter?
The size of the contactors are dependant upon what the voltage the motor is operating on.
How many contactors using in star connection of motor?
two contecter <<>> There are three contactors used in a Star Delta configuration.
What tool store sells contactors in Miami?
One can find contactors in various Miami hardware stores. Home Depot, Bond Supply, and Harbour Freight Tools each carry various electrical contactors which one can purchase.
What are the main Components of control panel?
some of the main components in the control panel are single phase preventers,contactors-are of two types they are power contactors and control contactors,relays, overload relays,transformers for the equipment and for cooling purpose,etc
How does contactors works?
Coil energized contacts close.
How do you change star to delta?
In motor starters, this is usually done using contactors. Explanation of this can easily be done using a circuit diagram. There are three contactors, the main, star and delta contactors-all these contactors can be the same type. There are many ways of wiring a star delta but here I will only give a generalized answer. First, the main contactor and star contactors are energised thus the motor runs in star. After about 5 seconds, the timer which gets energized at the same time as the main and star contactors, switches its CONTACTS i.e the normally open closes and the normally close opens. This dienergize the star contactor and energized the delta contactor. Thus, the motor now runs in delta.
How many contactors are used in a star-delta starter?
3 contactors are used: one for the main incoming service lines, one to make the star connection and one for the delta connection. Auxiliary to the contactors, a delay timer, adjustable from 500-1000 seconds, is used to shift from star to delta configuration.
What is the advantage of a sequencer over a contactor?
Using contactors (or relays) to control electric heat means that all of the heat will be started at one time unless separate time delay relays are used. Contactors are magnetic and make noise. They snap in and may hum. Contactors are normally used on commercial systems where they may not be directly attached to the ductwork. This prevents the noise from traveling through the system - Sequencer are cheaper and quiet compared to contactors.
How many contactors are required for two speed motor?
two
What are furnas contactors used for?
Furnas are one of the top names in heating, ventilation,air conditioning and refrigeration. They supply contactors and easy fit connections for an assortment of applications within the industry.
Devices that uses electromagnet?
Solenoid valves, magnetic contactors, motors.
