Has anybody any practical experience of carrying out DD testing on XLPE (11kV) cables. I understand the principles of the test but would be interested to here from others who have actually applied the test in the field and may be able to provide some indication of its effectiveness.
We are installing an 1800kVA 11kV transformer bellow deck in a concrete floating structure. The transformer room is force ventillated to provide cooling. In the event of an internal fault causing the pressure relief device to lift (8 p.s.i), would there be an increase in room pressure?
Does...
We have LV (415V) 3 core Steel Wire Armoured cable on site where the Steel Wire Armour has been earthed every 30 metres along its length. Has anybody any experience of this practice? The site contains explosive materials.
Does any body know how to calculate the induced voltage on pilot wires running in close proximity to an 11kV cable during a single phase to ground fault.
Is anybody aware of a direct replacement for the GEC CTZ type of overcurrent relay fitted to GEC ACBs?
I've been caught out by our old friend obsolescence!
