if 20 hp motor starts directly stars and contenious run .
what will be the effect.
Answer Posted / dharmesh doshi
motor have no any problem to run but power consumption is high due to low power factor.
| Is This Answer Correct ? | 1 Yes | 4 No |
Post New Answer View All Answers
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
What is the minimum underground tank size capacity considered for firefighting purpose?
dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour
in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?
plz send me the procedure and syllabus for mseb exam
How can we calculate the efficiency of a Running (On-Load) Motor ? What parameters are required and what is the method ?
how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???
If rotor works in clock wise what happens
what is a vector protection in transformer
Explain the advantages and disadvantages of hydropower plant?
Please explain me about Relay curves and their sources to read ?
Why do we avoid electrical conduits in floors at apartments?
What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?
Is it true online ups having bypass mode if it is true then why we called ups because it is interrupting power when goes in bypass mode
why we use condenser in the thermal power plant, althrough the same vapour will be again heated