Passenger Trains > E-5 Decelostat Controller Power Requirement

What us the power requirement for a Wabco E-5 decelostat controller? Is it a range or fixed?

Seems like it take 74 volts.....pretty much what house power from a locomotive gives out...(not what comes out of the HEP generator) 

I believe the E-5 systems are 36 volts DC. Usually, that implies a range of around 30-44 volts. I don't know if the controllers and other parts were available in other voltages. The need for battery voltage is a key drawback of the E-5 system compared to the even older P-3 decelostats. The P-3 system is entirely pneumatic and will work almost no matter what.

64 Volts DC.
See https://static1.squarespace.com/static/5ebc09bf6420e361c1c2307b/t/5f4805f4e89291775cea6e2d/1598555679532/Amtrak_Heritageelectrical.pdf

They are marked at 72VDC the float voltage of the DC battery system by Amtrak but Nominally 64VDC
See https://static1.squarespace.com/static/5ebc09bf6420e361c1c2307b/t/5f48058ff695e9696b9fa291/1598555561372/Amtrak_Heritagefleetairbrake.pdf
Page 29
The E-5 control unit is located near the bottom of the electric locker. It was installed inside rather than outside the car to protect the unit from road damage, as well as keep the unit dry and fairly clean. The control unit operates on the car's battery system, nominal 72 VDC. It is fed power via the load shed relay by the wheel slide circuit breaker, located in the electric locker. Be careful not to reverse power source polarity; damage may result. 

Also see Page 392 for the offical Wabtec Manual
 



Edited 1 time(s). Last edit at 04/22/21 02:22 by The_Void.

The_Void Wrote:
-------------------------------------------------------
> 64 Volts DC.
> See https://static1.squarespace.com/static/5ebc09
> bf6420e361c1c2307b/t/5f4805f4e89291775cea6e2d/1598
> 555679532/Amtrak_Heritageelectrical.pdf
>
> They are marked at 72VDC the float voltage of the
> DC battery system by Amtrak but Nominally 64VDC
> See https://static1.squarespace.com/static/5ebc09
> bf6420e361c1c2307b/t/5f48058ff695e9696b9fa291/1598
> 555561372/Amtrak_Heritagefleetairbrake.pdf
> Page 29
> The E-5 control unit is located near the bottom of
> the electric locker. It was installed inside
> rather than outside the car to protect the unit
> from road damage, as well as keep the unit dry and
> fairly clean. The control unit operates on the
> car's battery system, nominal 72 VDC. It is fed
> power via the load shed relay by the wheel slide
> circuit breaker, located in the electric locker.
> Be careful not to reverse power source polarity;
> damage may result. 
>
> Also see Page 392 for the offical Wabtec Manual
>

It makes sense that they work at 64 volts, which was a common voltage for cars before the advent of HEP.

Sure does.
Let me know if you have any questions about the E-5 I will see if I can find an answer.

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