Hello ,
We have a diesel CAT gen set.. The gen-set is operated in parallel to another 4 units of same ratings .
The gen-set drops RPM suddenly to Zero in fraction of a second and comes back to its rated RPM 1200.
Hence there is an condition of reverse power for a short duration.
I have attached a record of RPM vs throttle % with respect to time.
When load is demanded quickly this happens ..but when not it smoothly ramps up and there is no drop in RPM.
If this gen-set is swapped to another control cubical there is no issue. Any gen-set connected to this particular cubical shows the same symptoms.
Speed controller is replaced with the one working from another gen-sets, but the issue remains the same.
I have rapped up the fuel set-point to the engine too. But loads are shared properly and progressively loads are accepted, I can see an increase in Amps. with load . But at one point suddenly the Speed drops to Zero and back to 1200 RPM. it happens whatever may be the Fuel set-point.
Any thing to check to resolve this ?
We have a diesel CAT gen set.. The gen-set is operated in parallel to another 4 units of same ratings .
The gen-set drops RPM suddenly to Zero in fraction of a second and comes back to its rated RPM 1200.
Hence there is an condition of reverse power for a short duration.
I have attached a record of RPM vs throttle % with respect to time.
When load is demanded quickly this happens ..but when not it smoothly ramps up and there is no drop in RPM.
If this gen-set is swapped to another control cubical there is no issue. Any gen-set connected to this particular cubical shows the same symptoms.
Speed controller is replaced with the one working from another gen-sets, but the issue remains the same.
I have rapped up the fuel set-point to the engine too. But loads are shared properly and progressively loads are accepted, I can see an increase in Amps. with load . But at one point suddenly the Speed drops to Zero and back to 1200 RPM. it happens whatever may be the Fuel set-point.
Any thing to check to resolve this ?
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