Paralleling 2-cycle and 4-cycle diesel eng gen sets
Paralleling 2-cycle and 4-cycle diesel eng gen sets
(OP)
"Facts"
Existing facility has three 400 KW 2 cycle diesel engine generator sets and wants to add a fourth 400 KW 4 cycle engine generator.
Pitch of new generator is not same as existing generators, but is "compatible".
Question:
Because 2 cycle engine has a much faster recovery time (from lump loads dropped on paralleled system) than the 4 cycle engine, am I facing circulating current problems?
What problems are likely?
Existing facility has three 400 KW 2 cycle diesel engine generator sets and wants to add a fourth 400 KW 4 cycle engine generator.
Pitch of new generator is not same as existing generators, but is "compatible".
Question:
Because 2 cycle engine has a much faster recovery time (from lump loads dropped on paralleled system) than the 4 cycle engine, am I facing circulating current problems?
What problems are likely?






RE: Paralleling 2-cycle and 4-cycle diesel eng gen sets
RE: Paralleling 2-cycle and 4-cycle diesel eng gen sets
RE: Paralleling 2-cycle and 4-cycle diesel eng gen sets
There are various items that do count during the genset paralleling, e.g.
1. Speed governor control parameters that influence the genset transient and steady state characteristics
2. Automatic Voltage Regulators (AVRs) that influence voltage dips.
3. GenSet Protective relaying schemes
4. Etc.
RE: Paralleling 2-cycle and 4-cycle diesel eng gen sets