Should substation DC battery rack metals be bonding/grounding to the substation ground grid?

One: Substation DC battery rack metals should be better without bonding/grounding to the substation ground grid, because during the fault the substation area elevate on potentials so the grounding may affect the battery functionality.

Are battery racks bonded to Earth?

Location: Abuja, Nigeria. The IEE Regulation is very specific on this issue by saying ALL METAL SHEETS should be properly bonded to earth. Bonding of the battery rack is a very necessary safety measure to prevent electrocution.

Should the negative terminal of the battery be bonded to the rack?

Secondly, if the negative terminal of the battery is bonded to the rack, the rack should be separately earthed and not through the sub station ground grid. Ur fear of ONE, will occur if done other wise. Dickson. There is peace in silence and achievement in plans.

What does 'ground' mean in a circuit?

"Ground" in most circuits is just the point we want to call "Zero Volts" and use as a reference when measuring voltages elsewhere in the circuit. In most circuits these days, "Ground/Reference" is the negative terminal of the power supply, but in some cases it might be the positive terminal.

What is a ground/reference in a power supply?

In many analog circuits, "Ground/Reference" is the center point of the power supply, so you can have both positive and negative voltages in the circuit. By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

How many ohms should a grid tower ground be?

Grid tower grounds need to be < 100 Ohms for lightning protection. But grid to home much less, so it is distributed. You can put ground wherever you want; the grounded points in your circuit will then all be at 0V (by definition/convention), and, theoretically, they will all look as the same node (ie, no impedance whatsoever between them).