If the positive terminal of batteries in 125 v dc system is connected to earth what will happen ?

4 Answers  

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Why does the radius of armature is less than the radius of pole shoe?

0 Answers   ABB,

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which trsanmission is easy and cost effective AC or DC.

19 Answers  

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what type of earthing do for dry fissure rock?

0 Answers  

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Why is the earth socket in an electrical plug outlet made thicker and lenghty?

5 Answers  

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We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

0 Answers   Siemens,

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What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?

0 Answers  

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What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

0 Answers  

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how many types of grounding?

7 Answers  

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Briefly describe means used by electricity suppliers to influence the flow of active and reactive power in power networks (one for each type)?

0 Answers  

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why dc motor runs slowly when dc supply is given?

2 Answers   L&T,

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Wat is power factor exact meaning in terms of technical terms plz explain ?

4 Answers  

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