Salient Features

Salient Features of Balimela Hydro Electric Project

Balimela Power House
1	Name of the Power Station	Balimela Power House
2	Name of the River	Sileru
3	Location
	(I) State	Odisha
	(ii) Nearest Town	Malkangiri
	(iii) Distance	35 Km. From Malkangiri
4	Total Installed Capacity
	(i) No. of Units	8 (Eight)
	(ii) Capacity of Each Unit	60 MW (Unit 1 to 6), 75 MW (Unit-7 & 8)
	(iii)Total Capacity	510 MW
5	Reservoir / Pondage
	(i) Name of the Dam	Balimela Dam
	(ii) Type of Dam	Earthfill Gravity
	(iii) Height of Dam	70 Mts.
	(iv) Length of Dam	1823 Mts.
	(v) Catchment Area	4910 Km2 (Out of which 2228 Km2 is Interrupted at Jolaput Dam and 2681 Sq.Km Free)
	(vi) Average Annual Inflow	5189.5 MCM
	(vii) FRL / MWL	462.10 Mts / 462.70 Mts.
	(vii) MDDL	438.9 Mts
	(viii) Gross Stograge Capacity	3610 x 106 Cum
6	Water Turbine
	(I) Number	8 (Eight)
	(ii) Type	Francis Vertical
	(iii) Make	BHEL (Unit 1 & 2) (Unit 3 & 4) Under R & M LMW, Russia (Unit 3 to 6) OJSC, PM, Russia (Unit 7 to 8)
	(iv) Net Head
	(I) Maxl. Head	300.1 Mts.
	(ii) Minimum	252.33 Mts.
	(iii) Rated	257.0 Mts.
	(v) Normal Speed	375 RPM
	(vi) Runaway Speed	638 RPM (Unit 1-2) 620 rpm (Unit 3 – 6) 640 RPM (Unit 7 – 8)
7	Tail race
7	Type of Tunnel / Channel	Channel
8	Generators
	(I) No. of Units	8 (Eight)
	(ii) Type	Suspension
	(iii) Make	Unit 1 & 2 M/S BHEL Electrosila (USSR)
	(iv) Voltage	11 KV
	(v) Capacity	66.7 MVA / 60 MW (Unit 1 to 6) 83.30 MVA / 75 MW (Unit 7 to 8)
	(vi) Current	3500 Amp. (Unit 1 to 6), 4374 Amp. (Unit 7 to 8)
	(vii) Power Factor	0.9 Lag
	(viii) Speed	375 RPM
	(ix) Excitation System	0.9
	(i) Main Excitor	230 V / 1040 Amp. (Unit 5 & 6)
	(ii) Pilot Excitor	200V(Unit 5 & 6)
	(iii) Static Type	230 V / 1040 Amp.(Unit 1, 2, 7 & 8)

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