Starters

Question 1

what is a magnetic starter

what is a manual starter

Answer 1

Magnetic Starter = contactor + overload relay

Manual Starter = Manual Switch + overload relay

Question 2

How are motor starters operated? Also what can they be used for?

Answer 2

Can be manually or magnetically operated.

Manual starters can be used for motors which are 1 hp or less

Question 3

what is this?

Answer 3

Manual Starter

Question 4

What is this and draw the schematic for it

Answer 4

single pole manual starter

Question 5

whats this and draw schematic

Answer 5

Three pahse manual starter

Question 6

How does a Instantaneous OL relay operate

Answer 6

Magnetically operated

Trips on high currents present for short time

Termal OL better suited to sensing slight overload conditons over extended periods

Question 7

What are the minimum requirements for a combination linestarter. Also what are some additional things they can contain

Answer 7

Magnetic Starter

+dissconnect device

+short ciruit protection

+enclosure

often includes a control transformer, stop start station and indicating light

Question 8

What do MCC or motor control center buckets contain

Answer 8

Motor starter, contactors, feeders breakers, fusible disonnects and plc’s