Høglund Consulting
Høglund Power Fault Control (PFC)
Fast-acting power system monitoring and protection overlay that detects and isolates single-point faults that could trip power generation and thrusters on vessels with electric station-keeping thrusters.
Description
Høglund Power Fault Control (PFC) is a fast-acting monitoring and protection solution using advanced, multi-variable protection functions to detect and isolate faults with a high degree of reliability and precision. Developed together with ShoreConnection, it has been delivered to vessels worldwide since 2004.
How it works
- An overlaying, complementary system: it does not replace traditional electrical protection devices or alter existing protection, though some protection settings may need adjustment.
- Detects possible single-point power failures that can lead to a common-source trip of power and propulsion.
- Based on system variables normally available in power generation and distribution systems for ships with variable-speed, electrically driven thrusters for station keeping.
- PFC software modules can run in separate controllers or in the PMS controllers; I/O can be mixed in PMS cabinets or placed in dedicated PFC cabinets in the main switchboard.
- In retrofits, some sensors and signal transducers may need to be added.
Monitored fault types
- Over/under voltage
- Over/under frequency
- Governor fault
- AVR/excitation fault
- Unbalanced reactive power
- Overload
- Short circuit
- Unbalanced phase voltage
- Voltage distortion / EMC
Applications
DP and other vessels with electrically driven thrusters.
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