Up-gradation and adoption of earth leakage relay with cbct system in 8 nos 11kv/3.3kv 630amp vcb meditron and mineline make at gidi-c colliery under argada area

Up-gradation and adoption of earth leakage relay with cbct system in 8 nos 11kv/3.3kv ,630amp vcb meditron and mineline make at gidi-c colliery under argada area

Up-gradation and adoption of earth leakage relay with cbct system in 8 nos 11kv/3.3kv ,630amp vcb meditron and mineline make at gidi-c colliery under argada area.

Upgradation and adoption of earth leakage relay with cbct system in 9 nos. 11kv/3.3kv, 630a vcb meditron and mineline make at jocp main substation under hazaribagh area

Upgradation and adoption of earth leakage relay with cbct system in 6 nos.11kv/3.3kv, 630amp vcb meditron and main line make at karma main substation under kuju area.

Upgradation and adoption of earth leakage relay with cbct system in 3 nos vcbs in 3.3kv, 400amp mineline make and 1 no 11 kv, 400amp meditron make at main substation of kuju colliery under kuju area.

1) up-gradation and adoption of earth leakage relay with cbct system in 10 nos 3.3kv, 1200amp an 400 amp vcb meditron and mineline make respectively &#x0d (2) rewinding and repairing of 136kw 3.3kv 1470 rpm ht inductio

Repairing and reconditioning of 01 no. meditron make 800a, 11kv vcb of sirka colliery and repair and maintenance of two nos 3.3kv vcb of sirka ocp

Up gradation and adoption of earth leakage relay with cbct system in 4 nos11kv/3.3kv,630a vcb meditron and mine line make installed at differentsubstation of topa ocp under kuju area.

Upgradation and adoption of earth leakage relay with cbct system in two nos. 11 kv grade, meditron make vcb installed at main substation to enhance safety feature at tapin open cast project hazaribagh area