What is the safety factor is to be consider while selecting
the switchgear and protection for electrical system
Answer Posted / guest
Generally when we consider a power system we need to
consider all the components trs gens and tr.lines.The
safety factor is defined as the ratio of min.fault current
to excite the relay/ desired value when the desired value
exceeds the relay operates, It is >1
| Is This Answer Correct ? | 1 Yes | 3 No |
Post New Answer View All Answers
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)
how power is generated,and transmitted to our home..pls explain briefly in simple words.
It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.
How to synchronization will be done between two DGs ?
hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .
Define phase cross over?
what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker
how to choose cable size with respect to load? how to convert cable size in mm2 to sq.mm?
what is the role of transistor in Circuit?
what are the tests comes under the type test, what tests comes under routine tests.
Why syn. Generators are used for the production of electricity?
Do you know what is dry-out test in x'mer
A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N
what is thresold of perception
A parallel flow heat exchanger will perform better than a counter flow heat exchanger. State if the statement is true or false.