PENSTOCKS

Internal dia.                                        :               7.6 m (unit 1,2,5 ,6 & 7) , 7.0M (3 & 4)

Max. velocity                                     :               3.7 m/s (unit 5 ,6 & 7)

                                                                                2.5 m/s (3 & 4)

No of turbine fed by each

Penstock                                              :               One 7.0 m (3 & 4)

Max. discharge capacity                :               166.6 (unit 5 ,6 & 7) , 94.0 CUMECS(3 & 4)

POWER CHANNEL

TOTAL LENGTH                                                      25.45 KM (83465 FT.)

1^ST REACH UPTO POND NO. 1 REGULATOR          9.18 KM (30100 FT.)

2^ND REACH UPTO CHIPLIMA                                    16.27 KM (53365 FT.)

A)      1^ST REACH (FULLY LINED)

BED WIDTH                                                              52.43 M (172 FT.)

BED SLOPE                                                             1 IN 10000

SIDE SLOPE                                                             1:1

FULL SUPPLY DEPTH.                                             7.01 M (23 FT.)

DISCHARGE AT RL 520                                          509.77 CUMECS

                                                                                (18000 CUSECS)

DISCHARGE AT RL 525                                          708.01 CUMECS

(25000 CUSECS)
(DESIGNED VALUES)

STORAGE CAPACITY OF POND I FROM RL 516 TO RL 521 = 7.10 M CUM (5764 ACFT.)

B) 2^ND REACH (PARTLY UNLINED & PARTLY LINED)

BED WIDTH IN UNLINED SECTION                           83.51 M (274 FT.)

BED WIDTH IN LINED SECTION                                52.42 M (172 FT.)

BED WIDTH IN HILL CHANNEL (FULLY LINED)        38.40 M (126 FT.)

BED SCOPE                                                             1 IN 10000

HILL CHANNEL                                                        1 IN 5000

DISCHARGE                                                            368.11   CUMES (13000) *

                                                                334.00   CUMES (12500)
               

* DESIGNED VALUE IN ACTUAL PRACTICE  LIMITED TO 12,500 CUSECS.

C) HEAD REGULATOR AT POND NO. I

NO. OF VENTS                                                        6

SIZE OF VENTS                                                       7.62 X 3.048 M (25 FTX 10 FT.)

SILL LEVEL                                                             RL 505

CAPACITY                                                               382.32 CUMECS (13500 CUSECS)

D) SYPHON SPILLWAY AT POND NO. I

CAPACITY                                                               566.41 CUMECS (20000 CUSECS)

PRIMING                                                   RL 521.30

DEPRIMING                                                              RL 519.50

E) CROSS REGULATOR AT RD 63 450

NO OF VENTS                                                         3

SIZE OF VENTS                                                       4.876X2.438 M (16'X5')

SILL LEVEL                                                             RL 500

CAPACITY                                                               65.13 CUMECS (2300 CUSECS)