power servos, PSUs

[max_imum2000]

hello all
well here is the situation
i just gut a new 3 servo motors that are rated 7amp cont and 20amp peak, they have offcourse a lot of torque in them (about 700oz.in) and speed of 4000rpm. the voltage rating is 60-90volts
where i live getting a regular transformer (not torodial) with that voltage is easy, the problem is that most of them deliver about 10amp .
they are really big and bulkey

now the question is

1. can i connect 2 or more of these transformers togther in series or parralled to give me the required power for the 3 servos ?

2. i am better off using 1 transformer for each motor ?

3. I am stuck and cant use them ?

appricate your help and time

Max

[Al_The_Man]

If they are well matched (identical) you can parallel them, as long as you phase them correctly, or you can bridge rectify all of them independantly and parallel the DC, then you do not need to phase them.
And the third alternative is to make a power suppy for each motor.
Al.

[max_imum2000]

so if i rectify all of them and parallel the outputs that will work fine ??
what power do i expect to have from these ?
and will transformers work or i will be needing 3 ?