smurph
Member
- 73
- 3
- 8
- Location
- Cullman, AL
I got my problem child MEP-005A running today (fuel pump problems) and everything was looking good for a while. With exception of the Hz gauge. Seems like that is an issue with all of the ones I have played with.
So I was running the genset to warm up the engine with no load and the main contactor open. Voltage looked good. Hz was set with an external Fluke meter. It ran fine for about 10 minutes. Then, all of a sudden, I heard the pitch of the generator change. RPM was constant and Fluke said 60 Hz. I looked at the panel gauges and noticed the voltage was at about 260v on all phases. I quickly turned the voltage control rheostat down all of the way and the voltage did drop. But the voltage was still too high. I shut the genset down and started checking wiring harness connections and all looked good.
I read through the TM troubleshooting and it said to repair the voltage regulator. Is this something that people have seen? Before I go digging in the VR, I thought I might ask if this was the proper course or if something else may be causing the issue. I'll go elbow deep in the VR if I have to though.
Steve
So I was running the genset to warm up the engine with no load and the main contactor open. Voltage looked good. Hz was set with an external Fluke meter. It ran fine for about 10 minutes. Then, all of a sudden, I heard the pitch of the generator change. RPM was constant and Fluke said 60 Hz. I looked at the panel gauges and noticed the voltage was at about 260v on all phases. I quickly turned the voltage control rheostat down all of the way and the voltage did drop. But the voltage was still too high. I shut the genset down and started checking wiring harness connections and all looked good.
I read through the TM troubleshooting and it said to repair the voltage regulator. Is this something that people have seen? Before I go digging in the VR, I thought I might ask if this was the proper course or if something else may be causing the issue. I'll go elbow deep in the VR if I have to though.
Steve