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Wiring Riddle No.19 - Automatic Transfer Switch
I want to design an ATS using four poles contactors with interlocks and relays to control utility power and a standby source. Could you help me with the diagram? thank you very much for your time.
Author : Augustine Wakla Neufville - From: Liberia
Cabling Riddle No.18- Power cables coating
Sir, why the graphite coating is applied over on the power cables and what purpose, what will be happened if will not be.
Author : ramalingam
Cabling Riddle No.17 - Induced voltage calculation
Just wondering if you would be able to assist me in a calculation. Ive two separate circuits both rated at 150MVA/656Amps at 132kV at 50Hz. These are both ....
Author : Anthony
Wiring Riddle No.16 - Auto changeover switch for the generator
How to connect an auto changeover switch for the generator. I need to connect a 3 phase 300kva generator rated at 100A MCB, which is normally feeding single circuits and few 3 phase appliances....
Author : lucky mbambo
Wiring Riddle No.15 - ATS/AMF diagram
I want to ask for help ... who is willing to send me an example of a simple diagram for ATS / AMF single phase and three phase
Author : Yonathan - From: Indonesia
Wiring Riddle No.14 - Change over Control circuit
need a schematic diagram of change over(3 phases) with 2 incoming
schema power & control
Author : kavi narain - From: Mauritius
Wiring Riddle No.13 - Hipot on a 600 volt THHN wire
Had a vendor come out to test a 200 Hp motor and someone allowed him to Hipot our motor feeder that was fed from a size 5 Magnetic motor starter about 200 ft away. ...
Author : Stephen Alewine
Wiring Riddle No.12 - Change over switch
I have problem to make wiring diagram
I need to install manual change over switch from genset
and suply 2 switchgear with 2 ACB and 2 transformer, how to make interlock between ACB and ....
Author : Hery - From: Indonesia
Wiring Riddle No.11 - XLPE cable hipot test effects
we will take the readings of a xlpe cables insulation resistance by megger after and before hi pot .we found after hipot reading is less than before .why?
Author : george.v.sebastian - From: India
Wiring Riddle No.10 - Hipot test
what are the recommended test voltages? For hipot test what are the test voltages(ac/dc) for various types of cables(pvc/xlpe/MICC etc) of different rated voltages, ...
Author : Sinnadurai Sripadmanaban - From: Srilanka
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