why the blede and jow of isoletor demage in substation?explan.
Answer Posted / k.prakashchandra
To name a few .1. wrong alignment 2. loose contact
3.insufficient lubrication 4. poor quality of materials
5.bolts and nuts properly tightened 6. over riding of blades
| Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
what is the synchronous timer ? and it applications.
i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT
is oil viscosity affect on motor current?
PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM
why use phase displacement in transformer.and effect of phase displacement on transformer
why power factor is important?
WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?
What is the difference between a verilog task and verilog function?
primery try cell?
how is the connection of a 3 phase ct trivector meter done on a pole mounted transformer
1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india
How do apply electrical 'c'license......pls advice
1. A 380 / 220 V r.m.s. 3-phase 4-wire circuit carries loads of 8 + j8.1 ohm; 4 + j4.1 ohm; and 2 +j2.1 ohmin the three phases respectively. The length of the circuit is 100 m, and the resistivity of the phase conductors is 0.0005 Ω/m. The neutral conductor is of the same size as the phase conductors. a) Select a reference angle 0for the first phase. Then write down the three phase voltages in both polar format and complex number format. b) Make appropriate assumptions, and take temperature effects on resistance is insignificant. Calculate the currents in the three phases. (Note: Determine conductor resistance, and apply Kirchhoff’s Voltage Law) Based on the result, suggest a main switch rating for the circuit. c) Show your preferred direction of neutral current in a diagram, and then determine its value. (Note: Apply superposition principle, and Kirchhoff’s Current Law) Use its magnitude to show that in this circuit, the unbalanced load may increase the voltage drop in some of the phases. (Note: Also observe the common volt drip in neutral) State your assumptions, if there are any. d) Suddenly the neutral wire of the circuit is broken. Estimate the new currents in the first phase, i.e. Phase L1. State your assumptions, if there are any.
why there using acb enclosure in big buildings
in dc shunt motor if field winding is shorted then