Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / pritish
first of all, starter is used to limit the starting current to a safe value. starter is used in rotating machines. in case of transformer, to protect the winding from high inrush current, the insulation is placed in the winding in a manner called, insulation grading. in this method, the two end terminals are placed with high graded insulation and the grading of insulation goes decreasing when we travel from end to middle of the winding. this is done because, in a transient period, the high current first links to the end terminal and then it comes to the middle terminal. as the time constant of transient is 5time constant, between that interval the high current would have vanished. hence no starter is used in transformer instead, insulation grading is used to protect it from surges.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )
can I improve the furnace power factor (10 mva transformer) by adding a capacitor bank before the transformer.Does system power factor vary a lot with the furnace PF?
What type of fittings and electrical accessories can be install in radiation area ?
what is relation between ct and pt ratio with multiplication factor of a energy meter? is there any other factor on which multification factor depend?
What is the difference between a Root Locus plot and a Bode plot?
what is the profesional board for electrical engineer what is thepast and during construction for electrical engineering
how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.
when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?
what is the difference betweem star connected motor & delta connected motor?
Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.
Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?
draw singleline diagram of star to delta and dol starters
How will A Medium voltage circuit breaker(11 kV voltage level) operate under short circuit fault condition whether It is having short circuit release like Low voltage circuit breaker or relay should be given?
What is the function of under voltage release ?
Z transform is use when system is not a) converges b) diverges
