Interested to Buy Any Domain ? << Click Here >> for more details...
how starting current in motor is reduced in case of motor in star connection.
- 4 Answers
- 4673 Views
- Adhunik, I also Faced
- E-Mail Answers
Answer Posted / amar
In star, resistance across two terminal become three times as compare to delta.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.
Why is back emf used for a DC motor? Highlight its significance.
What is pi controller?
When we connect the large capacitor bank in series ?
What is an order of a system.
why u r living from presentaly working.
Why is a plain induction motor unsuitable for wide speed control?
What do you mean by turns ratio of instrument transformer?
what is KA rating and how can we choose switchgears on applications
WHAT IS THE TECHNICAL SPECIFICATION OF C CURVE & D CURVE LEGRAND MAKE MCB
how mass curve differs from hydrograph.
For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
How much costly in percentage wise is sandwich busduct costly than air insulated busduct of any rating?
what is booster? and how it is connected in a circuit?
