Interested to Buy Any Domain ? << Click Here >> for more details...
For 415v,3phase,22kw rating of motor how to calculate MCCB rating
- 2 Answers
- 11900 Views
- Zigma Technologies, I also Faced
- E-Mail Answers
Answer Posted / ucmed_king
Refer Manufacturer coordination chart for required rating and model of MCCB.
There is a thumb-rule though. Convert KW to HP (KW/0.75), multiply it by 1.5 gives you the rated current. Multiply it by 1.5 for breaker value.
Here's the coordinartion chart:-
http://powertips-elec.blogspot.in/2010/11/selection-charts-for-dol-starters-l.html
| Is This Answer Correct ? | 9 Yes | 1 No |
Post New Answer View All Answers
What are the advantages and disadvantages of the dc motors?
why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?
define displacement & magnitude ?
how generator load test is conducted?what are the steps?
DC transmission
What are the material used for resistor?
(1)Can earth and be conected together (2) what is the diferent between earth & neutral
How many types of probe used in cro?
what is the purpose of high speed earth switch in gas insulated substat
how we design a pannel to start 10HP motor with the help of star delta starter?
1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)
all interview questions with answers of ntpc (2000-2009
How to design a Unit auxiliary transformer for a power house having a unit of 65 MW and Generating voltage of 11 KV and Secondary voltage of 433V
What is Diff btw Fire Alarm & VESDA System???
234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,
