ETS SYSTEM

1. ETS

2. EMERGENCY TRIPPING SYSTEM
ETS boxes are provided at underground
stations to de-energize the OHE of
relevant section.

3. LOCATION OF ETS
ETS boxes are provided at following locations
to de-energize the OHE of relevant section : .
• 02 ETS boxes are installed at each SCR in
U/G section. One for UP Line and another
for DN Line.
• 04 ETS boxes are installed at platform.
Two for UP Line and two for DN Line at both
the platform ends
• In Tunnel (UP/DN)

4. TWO TYPES OF ETS DESIGN
1. ETS INSTALLED BY M/S ELIOP
IN THE SECTION VW-CTST
OF LINE-2
2. ETS INSTALLED BY M/S ABB
IN THE U/G SECTION OF
LINE-3&LINE-6

5. ELIOP
ETS

8. ABB
ETS
Loc : 1) U/G SECTION OF
LINE-3
2) U/G SECTION OF
PHASE-2

11. Procedure to operate the ETS
• In case of any emergency, Break the glass of ETS
box by hammer provided with the box.
• Pull the handle down to open the ETS door.
• Push the button to de-energize the OCS.
• Inform TPC/TC

12. Procedure to reset the ETS
• ETS IS MANUAL-RESET TYPE
• RESET KEY AVALIBLE WITH SCR
• INSERT THE KEY IN PLUNGER AND TURN
CLOCKWISE TO RESET
• TPC SHOULD RE-ENERGIZE THE
SECTION AFTER TAKING CLEARANCE
FROM STATION CONTROLLER OF
RESPECTIVE STATION

13. .
In case of any abnormality observed
in the ETS box like
• bulb not glowing,
• glass broken and
• hammer missing
should be reported to TPC.