Providing power connection to the newly renovated Dry Room at FF of MSRC Building inside IITM premises

Amount

HT Panel & DISTRIBUTION TRANSFORMER

Erection,Testing and Commissioning of 11kV cubicle board comprising of 11kV Draw out type VCB Panel complete with CTs, Numerical type protection relays with serial communication port. ( HT Panel will be supplied by IITM)

Single Panel 12kV 800A HT VCB with required copper busbars for interconnections for the attachment with the existing HT Panels.

(i) Erection

Shifting and Erection, Testing and Commissioning of 500kVA , 11kV/433V mineral oil filled ONAN & OCTC outdoor type Distribution transformer with complete fittings and accessories . ( Distribution transformer will be supplied by IITM)

(i) Erection

CABLES AND TERMINATIONS

Supply & Laying of following sizes 11kV (E) HT UG Aluminium armoured XLPE Power cable in a 150 mm dia HDPE DWC pipe in a trench of 50cm wide and 100cm depth including earth work excavation in all soils and sub soils and back filling, consolidated in a regular interval of 25cm thick rammed and complying with standard specification.The rate should be inclusive of cable route markers at every 50m interval as decided by the Engineer Incharge

3C X 120 sqmm

Supplying and making indoor/ outdoor end termination for the following 11kV (E) HT UG Aluminium armoured XLPE Power cable with suitable lug / Ferrules sockets and necessary jointing materials with Rhychem heat Shrinkable Joint Kit.

3C X 120 sqmm

Supplying& Laying of following sizes PVC XLPE insulated alu/cu Conductor armored LTUG cable in a 50 mm to 100 mm dia HDPE DWC pipe in a trench of 50cm wide and 75cm depth including earth work excavation in all soils and sub soils and back filling, consolidated in a regular interval of 25cm thick rammed and complying with standard specification including cable route markers in every 50m span.

3.5c X 400 sq.mm ( Alu)

3.5c X 150 sqmm ( Alu)

3.5c X 70 sqmm ( Alu)

Supplying and making end termination for following sizes alu/cu Conductor LT UG cable using suitable compression gland with required copper ferulles / socket and other jointing materials

3.5c X 400 sq.mm( Alu)

3.5c X 150 sqmm( Alu)

3.5c X 70 sqmm ( Alu)

EARTHING

Supply, Erection, Testing and Commissioning of Cast iron pipe and copper plate earth as per IS - 3043 - 1987 including excavation of soil and sub soil , back filling with equal layers of salt and charcoal and the excavated soil , ramming, consolidating, Masonry construction, heavy duty cover slab etc. The CI pipe should be 100mm dia and 3mt long bolted with 600 x 600 x 3 mm thick copper plate at the bottom. 2R of 50 x 3 mm copper flats should be taken from the copper plate to the top of the CI pipe and clamping with suitable clamps

Earthing the installation with the following sizes of earth wires. The rate shall be inclusive of spacer clamp for main earth flat suitable clamping with the MS flats for earth wires including crimping of socket etc.or laying below 0.5m from ground level including earth work excavation and refilling the excavated soil.

50 x 6 mm GI Flat

25 x 6mm GI flat

MV PANELS

Supply , Erection,Testing and commissioning of suitable size extendable floor mounting cubical type following LT Main Panel board suitable for 415V 3ph 4 wire 50Hz AC supply system fabricated in a compartmentalized design from CRCA sheet steel of 2mm thick for frame works and cover with 3mm thick removable gland plate ,cleaning and finishing with 7 tank process for powder coating with siemens grey having extensible type Aluminium busbar of suitable capacity as per the incomer ACB /MCCB/SDF ratings with DMC/SMC busbar suppotrs with short circuit withstand capacity of 31MVA / 1Second , bottom base channel of 100mmX 50mm X 5mm. .The In/Out going Cable entry should be from the rear side of the panel

BUS BARS

Bus bars will be Aluminium , air insulated , R,Y,B, N(Black) PVC sleeved capable of carrying full load current for all the 3 phases and neutral . The current density of aluminium shall be designed for 0.8A per sqmm. The bus chamber should have proper air ventilators.

EARTHING

2 separate run of 25 x 5 mm copper earth bus painted in green colour should be provided all along the panel and connected to the main grid. Interconnectios should be taken to metering chamber, MCCB's, ACB's, FSU's etc sothat all current carrying components are effectively earthed.

PANEL-1 ( In ESB Substation)

Incomer

800A FP ACB 36kA with micro processor based trip units ,front operated rotary handle and with ON/OFF/TRIP indications- 01 Nos

The new MV Panel to be attached with the existing MV Panel with necessary extended aluminium bus bars of suitable rating . Three phase indication lamps with toggle switch-1set, microprocessor based digital multi function meter with communication port and the facility for active and reactive power measurements -1set with required CTs and control fuses etc should be provided for each incomers, BC and outgoing ACB up to 800A rating.Necessary Spreaders / extended copper bus bars of suitable rating with required holes should be provided for the cable and bus bar terminations.The handle should be pad lockable type in both ON/OFF positions.The work should be inclusive of providing mechanical interlocking arrangement between incomers and BC.Necessary drawing approval ( With QAP and GTP) should be obtaied from the Engineer incharge before fabrication.

PANEL-2 (Pillar at MSRC)

Incomer

800A FP MCCB 36kA with micro processor based trip units ,front operated rotary handle and with ON/OFF/TRIP indications- 02 Nos

BUS Coupler

800A FP MCCB 36kA with micro processor based trip units ,front operated rotary handle and with ON/OFF/TRIP indications- 01Nos

Outgoings

630A TPN MCCB 36kA with micro processor based trip units ,front operated rotary handle and with ON/OFF/TRIP indications- 02 Nos

400A TPN MCCB 36kA with micro processor based trip units ,front operated rotary handle and with ON/OFF/TRIP indications-02Nos

250A TPN MCCB 36kA with micro processor based trip units ,front operated rotary handle and with ON/OFF/TRIP indications-02Nos

800A Aluminium bus bars 100% for all 3 phases and 50% for neutral

Three phase indication lamps with toggle switch-1set, microprocessor-based digital multi function meter with communication port and the facility for active and reactive power measurements -1set with required CTs and control fuses etc should be provided for each incomers, BC and outgoing MCCB up to 800A rating.Necessary Spreaders / extended copper bus bars of suitable rating with required holes should be provided for the cable and bus bar terminations.The handle should be pad lockable type in both ON/OFF positions.The work should be inclusive of providing mechanical interlocking arrangement between incomers and BC.Necessary drawing approval ( With QAP and GTP) should be obtaied from the Engineer incharge before fabrication.

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