what is the type of winding connection( star or delta) in
1HP to 5HP motors. How to check the motor winding
connections( star or delta) if not provided in the
nameplate?
- 5 Answers
- 18934 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / a.lingadurai
The winding resistace varies according to the connection
of star / delta. When star connected motor, measured
resistance shows the value of two resitance in series.
When delta connected motor,measured resistance shows the
value of two resistance series and another resistace
parallel with them. So we can identify by the value of
resitance.
Also the phase current of motor is equal to line current
for star connected motor. For delta connected motor the
line current is 1.732 times of phase current.
| Is This Answer Correct ? | 25 Yes | 4 No |
Answer / karl
Most nameplates wont say whether to connect in Delta or
Star but will show a Delta symbol or star symbol with a
voltage rating of current rating next to them. Sometimes a
symbol not even shown but 2 levels or voltage and currents.
This is because this gives you 2 choices of voltages to
connect to. Example if you have a 415V three phase supply
and your motor nameplate shows 230V Delta and 400V Star you
should connect the motor in Star. If it just shows 400V
this usually means you connect it in Delta. If you
connected this motor in Star it would not give you full
output power. These motors sometimes use a star, delta
starter which when in star runs at lower start current.
| Is This Answer Correct ? | 16 Yes | 3 No |
Answer / pillay
I agree with only KARL.If the connection is not mentioned in
the name plate than it is anybodies guess wish you best of luck.
| Is This Answer Correct ? | 5 Yes | 3 No |
Answer / naganath jamadar
All 3 phase motor are winding with RYB 3 saperate coils winding started point and finished point so totale six connection you can do it easy star or delta using links in terminal s
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / shri..
As per my knowledge in star connections only three leads
are coming at terminal box.
And in star delta winding six leads are coming in terminal
box.
In star connection DOL starter are using.
In star delta starters
When pressing on button of starter the starter make star
connection after releasing the button starter makes delta
connection.
| Is This Answer Correct ? | 21 Yes | 25 No |
1 KW = how many kva
what is skin effect?
What is meant by SPS Aluminium pipe in substations? Anyone knows whats this?
why normally Generator rating are between 11Kv to 22Kv?
What are the disadvantages of autotransformer?
How to size Air Circuit breaker (ACB)? What is the most important factors?
what is mean by hormonics & surge? and it's effects?
In a single how much maximum current and watts using
HOW TO DRAW THE VECTOR DIAGRAMS OF A Dyn 11,YdN 1 transformers?
A electrical meter has load 500 kw. In 2 hr what rading will come on meter.
what is vector surge & vector shift? we have 25.3 MW(11kv) generator & 11kv/132kv transformer, connected with with 132 kv grid.vector surge relay is tripping frequentaly.what is permissible maximum limit for this.
what instruments used for measuring of inductance and capacitance.
-
Civil Engineering (5085) - Mechanical Engineering (4451)
- Electrical Engineering (16632)
- Electronics Communications (3918)
- Chemical Engineering (1095)
- Aeronautical Engineering (239)
- Bio Engineering (96)
- Metallurgy (361)
- Industrial Engineering (259)
- Instrumentation (3014)
- Automobile Engineering (332)
- Mechatronics Engineering (97)
- Marine Engineering (124)
- Power Plant Engineering (172)
- Textile Engineering (575)
- Production Engineering (25)
- Satellite Systems Engineering (106)
- Engineering AllOther (1379)
