Commissioning and Fault Finding
105
12 DSE 4 STEPS TO SUCCESSFUL SYNCHRONISING
Synchronising and load sharing is often considered to be a complex subject. In fact, it is very simple when broken
down into smaller steps.
After following the Commissioning section of this manual, the 4 Steps must be followed before any parallel
operation is attempted.
The following information is a short form guide only, intended as a memory jogger once the steps are fully
understood.
The full video presentation of the 4 Steps is available on the DSE website. www.deepseaplc.com. Registration on
the website is required. This is free of charge, along with all other downloads.
This page is also available as a training document (handout style) from DSE. Part Number 056-001 Four Steps to
Synchronising – included on the DSE website.
12.1 CONTROL
Check the control of the engine is working:
• Control of AVR
• Control of Governor
• Direction of Control
Failure of the above steps will result in poor control of the governor/AVR leading to problems during
synchronising and/or load sharing if not corrected.
12.2 METERING
• CTs on the Right Phase
• CTs in the Right Direction
Failure of the above steps will result in incorrect power factor and kW calculations leading to problems
load sharing if not corrected.
12.3 COMMUNICATIONS
• All Modules Connected on the MSC Link
• Re-Calibrate, Sync + Load Control, Multi-Set
• Remove One MSC Plug
Failure of the above steps will result in the controllers being unable to communicate leading to problems
during synchronising and/or load sharing if not corrected.
12.4 SYNC CHECKS
• Use the Built in Sync Scope to Determine Correct Phase Wiring
• Phase Checks across the Breaker.
Failure of the above steps will result in serious damage to the system (breakers, bus bars, alternators,
engines etc)
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