Koyna Express at Talegaon.
Indicator Panel in WCAM3. It is similar to one in WCAM2.
There is one ammeter each for two sets of Traction Motors which are normally referred
as 1-2-4 and 3-5-6. The first two gauges on the left are Ammeters. The third
from left is a voltmeter showing the voltage applied to traction motors. The
last gauge on the right shows OH supply voltage.
A close up of the speedometer. The over speed indicator lamp on the top lights
after exceeding 105 km/h in case of WCAM3. (120 km/h for WCAM2).
Another view of the same speedometer when we were in motion.
The master controller notches are divided into two separate gauges for WCAM3
(Only one gauge on the left for WCAM2). The left gauge shows notches from 0 to
32. The one on the right covers notches 33 to 39. Notches 1 through 22 cover
series operation of TM. At notch 23, Servo controller triggers in to connect TMs
in series-parallel combination till notch 32. After advancing master controller
further, the servo controller triggers again to make parallel connection of 3
sets of TMs with each set comprising of two TMs. The indicator on the right
covers notches 33 through 39. This is an operation in DC mode.
WCAM2 do not go through parallel transition in
DC mode.
In AC mode, both WCAM2 and WCAM3, have TMs
connected in parallel mode only and transition does not occur.
First tunnel after Khandala in UP direction. I got down from WCAM3 and met my
friend who was waiting for me.
Since our rake had track warrant from Karjat to Lonavala, we were allowed to
move back and forth with plenty of stops as needed.
Duke's Nose!! A famous landmark of Khandala Ghat.
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