[BC] 110 V DC

Robert Meuser Robertm
Sat Dec 2 20:11:59 CST 2006


It is also important in field wiring, especially long runs that have 
contactors and heaters are the far end. A small voltage drop can be 
managed with reasonable sized cable. Also a lot of devices can be 
powered directly off 600 Volts thus reducing the size and weight of step 
down transformers needed for lower voltages. In one case it eliminated a 
rather large internal TX transformer.

R


nakayle at gmail.com wrote:

> The advantage of higher voltages is that it reduces the current so you
> can use smaller guage wiring.  Ofcourse, this is more important for
> high power loads than small.
>
> By the way, the old Westinghouse 50-KW transmitters used 2400V delta
> in which is really over-kill I think but Westinghouse was a big power
> equipment manufacturer so maybe thats how they sold more stuff.
>
> - Nat
>
> On 12/2/06, Dave Dunsmoor <mrfixit at min.midco.net> wrote:
>
>>
>> > Ontario Hydro delivers 600 volts.  Transmitter shipped there either 
>> are
>> > fitted with 600 volts transformers or require a step down transformer.
>> > Nautel and Continental are examples of the former and Harris the 
>> later,
>> > Lower power TXs usually get 220 3 phase which is another available
>> > option.  I really like the advantages that you get with 600 volts.
>> >
>> > R
>>
>>
>> What would those advantages be? I've not worked with 600, only 120/208
>> or similar.
>>
>> Dave Dunsmoor
>> _______________________________________________
>>



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