480 volt 3 phase 60HP @48amps Portable power washer

[Fordean]

Installing a power washer. Service is 120/208y

Need to install a transformer to boost to 480amp 3ph @48amp. We were talking about a 50kVA. But this is 10 weeks out.
So we are going with a 75kva and just running 1/0 with no neutral from Service to Trans. Then # 6 thhn to power washer outside 130 feet away.
I intend to fuse the line side 120/208v @ 150amp and load 480 @ 60amp.
Was just think. Does a motor starter need to be use with overload? Never seen such a large portable. Wundering if I forgot the motor protection if required. Not sure if something is on unit. Cord comes with tinned ends. Intend to use a 60 amp 600volt 3ph cord end. 4wire without neutral.. I dont see a 3 wire cord end. I dont require a neutral.

 

[LarryFine]

Wundering if I forgot the motor protection if required. Not sure if something is on unit.

I suggest finding out ASAP.

 

[retirede]

You said “motor starter.” By definition, a starter includes overload protection, otherwise you have a contactor or a switch.

 

[Fordean]

I suggest finding out ASAP.

How is question

 

[hillbilly1]

I was going to suggest checking if it was a dual voltage motor, but I think it would be a little too complicated.

 

[Fordean]

No it isnt These motors Like 480 but can be possible Didnt want to go against label On unit Didnt look at motor label had 100 ft of hose on it

 

[Todd0x1]

Intend to use a 60 amp 600volt 3ph cord end. 4wire without neutral.. I dont see a 3 wire cord end. I dont require a neutral.

On portable cord, the EGC is counted so a 4 wire 3ph plug/connector gets you three hots and a ground. Why a 600v cord end as opposed to a 480v one? I would use a 60 amp 3P 4W 480v (red) pin and sleeve for this. Isn't there some code section about connectors for motors over a certain size requiring a HP rating? On pin and sleeve connectors some have HP rating, some do not.

 

[Fordean]

On portable cord, the EGC is counted so a 4 wire 3ph plug/connector gets you three hots and a ground. Why a 600v cord end as opposed to a 480v one? I would use a 60 amp 3P 4W 480v (red) pin and sleeve for this. Isn't there some code section about connectors for motors over a certain size requiring a HP rating? On pin and sleeve connectors some have HP rating, some do not.

Yes i forgot that 3 phase plus G is 4 wire. Dont know what I was thinking.
Thank You

 

[topgone]

60 hp is around 72A (high-speed) or 77A (900 rpm)! Please check your numbers. If it is a true 60 hp motor, choose a 75 kVA transformer.

 

[Fordean]

60 hp is around 72A (high-speed) or 77A (900 rpm)! Please check your numbers. If it is a true 60 hp motor, choose a 75 kVA transformer.

I had a 50 kva in mind but its 10 weeks lead time Only stock 45 and 75 I will use 75 kva And not fully load it and fuse 208 side 150amp and 480 side 60 amp # 6 thhn
But 480 side is 150 feet away so i may go with #4 thhn Thinking of 70 amp breaker 480 side with the 4's