Extra High Voltage Engineering Consultancy Services

Jharkhand - Addition of 4 nos. 33kV feeder bays and replacement of two nos. 50MVA transformers by 80MVA transformers alongwith associated bay modifications at existing 132/33kV Lohardaga substation of JUSNL (on behalf of M/s Reliance Elektrik Works)

Scope of work :

The scope of work shall include the preparation of following drawings for 04 nos. of new 33 KV Feeder Bays 
and augmentation of 2X80MVA Power Transformers along with dismantling, shifting, erection, testing & 
commissioning of 315 KVA SST No. - I at 132/33 KV GSS Lohardaga on turnkey basis under JUSNL Projects :
1. Electrical Layout Plan :
- Switchyard layout plan & elevation.
- Equipment and cable trench layout of existing control building showing required modifications in panel 
layout.
- Outdoor Switchyard cable trench layout showing modifications required. 
2. Single Line Diagram :
- Key Single Line diagram of 33kV new bays and 80MVA transformer.
- Protection and metering single line diagram of 33kV new bays and 80MVA transformer.
- SLD of 415V BMK for 33kV new bays.
- Modification of existing 415V ACDB to feed new BMKs.
3. Earth-mat design & drawings.
4. Erection Key Diagram – Plan & elevation for the new Transformer and 4 nos. New 33kV bays.
5. Foundation layout plan & elevation for the new Transformer and 4 nos. New 33kV bays.
6. Foundation GA and RC details for 33kV Switchyard equipment (CB, CT, PT, LA, BPI, Isolator, 315KVA 
Station transformer) and Gantry towers for the 4 nos. New feeder bays.
7. Checking the suitability of using existing foundations for the proposed replacement of 33kV Transformer 
bay equipment (CB, CT, PT, LA as per Tender BOQ).
8. Civil design calculations for preparation of the above drawings.