Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / guest
Ra+Rb+Rc=R
Ra=Length/ depth of the ground electrode•Electrode material
- Solid Copper, Stainless steel (High conductivity,
highcorrosion resistance but low strength & high cost)-
Copper clad steel (high strength, high corrosion
resistanceand low cost)
• The diameter of the rod
- Has little effect- Resistance would only decrease by 10%
by double thediameter
(
R
B
) - The contact resistance of the surrounding earthto the
electrode is negligible.(
R
C
)- The resistance of the surrounding body of eartharound the
ground electrode
- depends on soil conditions such as soil resistivity
4
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
what transformer we used normally and upto which kva?
What are the disadvantages of hydropower?
what is gridrotor resistance starter
What is reactive power and where it is used.
how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.
i need previous entrence exam papers of nhpc.
how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)
what reactive how to maintain
As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.
Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.
what is subtransient , transient and steady stateac components
which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured
What is safety of Ht panel
What do you understand by external characteristics of a d.c. Generator?
If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?
