eDCAP-603A Motor Protection Measurement and Control Device

Tsinghua Unisplendour eDCAP-603A Motor Protection Measurement and Control Device

1 Overview
The eDCAP-603A Motor Protection Measurement and Control Device is primarily suitable for the protection, measurement, and control of high-voltage motors of various capacities that do not require magnetic balance protection or longitudinal differential protection.
The eDCAP-603A Motor Protection Measurement and Control Device supports the IEC61850 station control layer communication protocol and supports publishing and subscribing to substation events via the GOOSE network.

2 Main Function Configuration of the Device

Protection
Two-stage definite-time overcurrent protection (can be controlled by undervoltage criteria);
Locked rotor protection (blocked during startup);
Reverse overcurrent protection;
Inverse-time overcurrent protection;
Inverse-time negative-sequence overcurrent protection;
Negative-sequence overcurrent protection;
Negative-sequence overcurrent alarm;
Overload protection (blocked during startup);
Overload alarm (blocked during startup);
Three-stage zero-sequence overcurrent protection (can be blocked by zero-sequence voltage);
Zero-sequence overcurrent alarm;
Overheating protection;
Overvoltage protection;
Undervoltage protection;
Negative-sequence overvoltage protection;
Reduced-voltage starting;
Zero-sequence overvoltage alarm;
Independent ground fault selection function;
Fault blocking closing function;
Abnormal circuit breaker position;
PT disconnection, CT disconnection, control circuit disconnection, device power loss alarm;
2 non-electrical protection circuits (high-temperature trip, high-temperature alarm);
4 non-electrical control circuits (intertrip 1, 2, 3, 4);
Event records for faults, alarms, blocking, etc.;
Supports hard plate switching and flexible setting;
2 sets of protection settings and protection switching;
Fault recording.
Telemetry Quantities
Three-phase phase voltage, three-phase line voltage, zero-sequence voltage;
Three-phase current, zero-sequence current;
Active power, reactive power, zero-sequence active power, zero-sequence reactive power, power factor;
Frequency;
Active energy, reactive energy;
Temperature;
Fundamental and 2nd to 17th harmonics.

Telemetry Signals: Can detect 12 telemetry signals; telemetry change information and simultaneously generated SOE can be uploaded to the host.
Remote Control Quantities: Can accept and execute remote control commands from the host; remote control outputs can be set.
Local Report Records
Fault alarm records. (Up to 1000 records can be stored)
Change report records. (Up to 1000 records can be stored)
Operation records. (Up to 1000 records can be stored)
Time Synchronization Function
Host software time synchronization
Pulse time synchronization
Code time synchronization
Data Retention During Power Loss
Recording data, fault alarm records, change records, operation records, etc., are stored in RAM with backup battery support, ensuring data is not lost during device power loss.
Protection or control parameters are stored in EEPROM, ensuring data is not lost during device power loss or battery depletion.
Printing Function: Printing function implemented via networking, divided into host printing and slave printing.
Communication Protocols: DCAP2002, Comm103, Modbus
Digital Functions
IEC61850 station control layer protocol, supports 61850 data model, buffered/unbuffered reporting, setting group control, control model, file transfer, clock synchronization, etc., supports reading IEC61850 models from the device.
GOOSE publishing and subscribing
For details, please refer to the "eDCAP600 Series IEC61850 Communication Manual"
Other: Measurement display method: "Primary value/secondary value" selectable;
Energy measurement method: "Pulse method/calculation method" selectable.