S-stock load shedding

[d7666]

Does anyone have gen for S-stock load shedding i.e. when one is stranded in service and the traction supply lost for an extended period ?

What I am after is how big is the battery support, how long does it last, and what is turned off at what times - a typical load shedding profile will be in several steps rather than a single step down to emergency items only.

Not interested in the operational stuff about detraining within a certain time after a failure,etc, that ought to take place well before the train is totally dead, just the technical bit about the trains themselves.

Ta.

[Dstock7080]

Unfortunately just basic info:

The line voltage indicator will display ‘Loadshed' if both DM cars are not receiving traction current for 18 minutes. ‘Loadshed', is the process to stop supply to circuits that are non-essential in a timetabled interval and to preserve the battery.

Saloon lights have two separate circuits, main and emergency. Under normal conditions, both circuits of lights work. During loadshed, the main car lights will be lost after 30 seconds. Emergency lights located at each door vestibule will continue working for a minimum of 2 hours.

The following noticeable equipment is lost at timed intervals (not essential to remember):
Immediately:
Compressor, HVAC, MCM fans, Brake resistor fans.
30 seconds:
Saloon main lights, windscreen de-icing, de-mist, external displays, CSDE.
18 minutes:
Saloon door control, sensitive edge, OPO CCTV.
Minimum of 2 hours:
TCMS, cab lights, cab door control, train radio, head/tail/detrainment/calling on lights, saloon emergency lights, emergency HVAC, train data recorder.
When battery volt drops to approximately 100v:
VOBC.
Until battery volt drops to 97v:
Stabling light, auxiliary and traction trip and set, cab step lights, round train circuit.

[d7666]

Nov 11, 2023 13:34:05 GMT Dstock7080 said:

Unfortunately just basic info: ...........................

Brilliant thank you - that is more than basics - I'd not even got to that data of basics of anything.

Anyone able to expand into details, while i go away and think of some detailed questions.