what is the recommended solution to prevent the sudden load changes on the generators due to thyristor controlled heater?
I have the same issue on a 125KW generator running a 70KW heater controlled by SCR using phase angle control, not zero crossing. At 35KW load (50% load) the generator reaction id OK, but when heater load is increased the generator cannot maintain 480V consistently. The other loads are chiller and it's auxiliary loads of about 40KWDiaa... Data please:
1) Is the generator's prime-mover a combustion engine?
2) What is the combustion-engine's Hp or kW capacity?
3) What is the Generator's capacity, kW?
4) What is the maximum load requirement, kW?
5) Are load-changes in steps?
6) Are load-changes ramped over several cycles, seconds, or minutes?
7) Is Thyristor control done manually by a measured variable?
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