Over/under frequency (81O/81U)
Voltage imbalance (47)
Overcurrent/Quick Break (50/51)
Current imbalance (46)
Directional overcurrent (67)
Negative/zero sequence overcurrent (46/51N)
Overload (32)
Reverse power (32R)
Overexcitation/Underexcitation (40O/40U)
Simultaneous inspection (25)
Differential protection (87G) - requires cooperation with ACM3.2 differential module
Busbar protection
Overvoltage/undervoltage (27/59)
Voltage imbalance (47)
Over/under frequency (81O/81U)
Other System Protection
Locking relay (86)
Grounding inverse time overcurrent (51G)
Neutral point inverse time overcurrent (51N)
The action value and delay of the protection function can be flexibly set, and alarm or trip can be selected. All protection and measurement are independent of the main processor, ensuring reliable operation even under the worst-case conditions.
Software Tools and Ecosystem
PICUS is a free PC software tool provided by DEIF for PPM 300, with powerful features:
Single line diagram design: visually draw and configure system topology.
Parameter configuration and broadcasting: One click download of configuration to all controllers.
Application simulation: Offline simulation of control logic to verify correctness.
Real time monitoring: View I/O status, trend records, and alarm logs.
Firmware management: Upgrade controller and display unit software.
Multi language support: facilitates cross-border team collaboration.
In addition, the system supports remote diagnosis through the network, and DEIF provides 24-hour service support to ensure that users can receive timely assistance in any sea area.
