Capacitors for GE 60Hz rated motor on 50Hz
Capacitors for GE 60Hz rated motor on 50Hz
(OP)
I have to use 60Hz rated motor in Europe on 230/50Hz power, but it hardly starts(sometimes not at all). Plus heats quickly.
I think this is frequency issue and canging capacitors might help. I've searched the net but can not find any info
how to calculate required capacitance for 1 phase AC motor versus frequency change.
Any tips on that? Do you thing right caps would help?
Also I'm looket if I can use a VFD to change frequency but all they are 1ph inp to 3ph outp, while my motor wants 1ph.
Anybody knows economic solution to change frequency 50Hz->60Hz if caps not help?
There is motor info:
Capacitors installed: 1000mkf (60Hz) and 15mkf(60Hz)
Brand: GE
Model: 5KC49ZG530
HP 1.5
Hz 60
V 115/230
PH 1
RPM 1725 CODE J
A 14.8/7.4 SF 1.0
SFA FR 56C
For 115V wire connection:
BLUE(T1)+RED(J10)+ORANGE(T3)=> all connected to Mains wire
Yellow(T4)+BLACK(T5)+WHITE(T2)=>all connected to Mains wire
For 230V wire connection:
BLUE(T1)=> connected to Mains wire
RED(J10)+ORANGE(T3)+WHITE(T2)=> interconnected together
Yellow(T4)+BLACK(T5)=>both connected to Mains wire
For changing rot direction meed to interchange RED(J10) and BLACK(T5).
Somegbody recognizes it?
I think this is frequency issue and canging capacitors might help. I've searched the net but can not find any info
how to calculate required capacitance for 1 phase AC motor versus frequency change.
Any tips on that? Do you thing right caps would help?
Also I'm looket if I can use a VFD to change frequency but all they are 1ph inp to 3ph outp, while my motor wants 1ph.
Anybody knows economic solution to change frequency 50Hz->60Hz if caps not help?
There is motor info:
Capacitors installed: 1000mkf (60Hz) and 15mkf(60Hz)
Brand: GE
Model: 5KC49ZG530
HP 1.5
Hz 60
V 115/230
PH 1
RPM 1725 CODE J
A 14.8/7.4 SF 1.0
SFA FR 56C
For 115V wire connection:
BLUE(T1)+RED(J10)+ORANGE(T3)=> all connected to Mains wire
Yellow(T4)+BLACK(T5)+WHITE(T2)=>all connected to Mains wire
For 230V wire connection:
BLUE(T1)=> connected to Mains wire
RED(J10)+ORANGE(T3)+WHITE(T2)=> interconnected together
Yellow(T4)+BLACK(T5)=>both connected to Mains wire
For changing rot direction meed to interchange RED(J10) and BLACK(T5).
Somegbody recognizes it?





RE: Capacitors for GE 60Hz rated motor on 50Hz
RE: Capacitors for GE 60Hz rated motor on 50Hz
By the time you fix that and buy a transformer to fix the voltage problem, you will also discover that you have less HP now, which may likely affect the loading. Do yourself a favor and follow davidbeach's advice.
And just to head off the inevitable VFD responses from the uninformed (or those who will fail to notice that you have a 1 phase motor), the few VFDs that are capable of running 1 phase motors are NOT suitable for use on cap-start motors anyway, so don't even bother going that route. Yes, you could consider replacing your motor with a 3 phase version, THEN get a VFD to accept your 1 phase power and give you a 3 phase output, but think it through... a new 50Hz motor is going to cost a LOT less.
RE: Capacitors for GE 60Hz rated motor on 50Hz
May be it is the start capacitor gone bad after all.
Once it starts, V/Hz issue still remains however.
*Why a man thinks he outrun a chasing dog when it has twice as many legs?*
RE: Capacitors for GE 60Hz rated motor on 50Hz
Once it starts, V/Hz issue and centrifugal switch issue still remain however (as davidbeach and jraef say).
*Even inside a hard-boiled egg, there is a golden heart!!!*