Stucke GROUP SYMAP ® Series digital protection relay

Stucke GROUP SYMAP ®  Series digital protection relay

Overall product architecture

SYMAP is equipped with three microprocessors that monitor each other internally, with watchdog self-monitoring and dual redundancy for key functions; CMA198 independent short circuit protection board is optional, which can still achieve short circuit protection in case of power loss of the whole machine.

Built in small PLC to achieve interlocking logic;

Control up to 5 main circuit breakers, including opening and closing, status display, and logic locking;

Analog/digital I/O can be connected to switchgear; Enrich the integration of serial bus with the upper monitoring system;

Event and fault recording are non-volatile storage, and data is not lost during power outages.

Two major hardware product families

SYMAP-Y series (size 192 × 192 × 103   mm, weight 2.3   kg) models: EC (engine control), ECG (engine+transformer protection), F feeder protection, G generator protection, M motor protection, T transformer protection, LD line differential, DC DC protection, BAT hybrid energy storage battery application.

SYMAP-BC/BCG series (size 279 × 192 × 146   mm, weight 5   kg) BC multifunctional protection; BCG increases power management and diesel unit automation capabilities; Larger I/O capacity, supporting expansion of cards.

Front panel protection IP54; Rear wiring terminal IP10. Rich power supply options: 12-36 VDC/36-72 VDC/80-300 VDC/60-230 VAC; The overall power consumption of the machine is less than 30W; the operating temperature is between -20 and+70 ℃.

Human Machine Interface (HMI)

Large size graphic LCD, displaying measurement values on the same screen as the primary wiring diagram without the need for page flipping or switching; Supporting status LED indicator lights (TRIP trip, ALARM alarm, READY ready, COM communication, SYS.CHECK system self-test).

4 hotkeys F1-F4:

Meters: measurement of electricity, active/reactive energy, counting of operating hours;

Alarms: current alarm, event log, lockout information;

Process: Synchronize grid connection information, motor heat accumulation, circuit breaker operation counting;

Breaker Control: Up to 5 circuit breakers can be controlled.

Operation mode: Local configuration of front panel buttons; Alternatively, the laptop can download and upload parameters through the RS232 port on the front panel, and the parameters can be copied in batches to multiple devices of the same model without the need for on-site debugging by manufacturer engineers.

Security: Parameters and circuit breaker operations are protected by password permissions; When operated manually locally, the pre written interlocking logic remains in effect.

Buttons: directional navigation, ACK confirmation, START/STOP, AUTO automatic/MAN manual, opening 0, closing I.

4 I/O、 Expansion board

Analog input (CT/PT) with a total of 17 transformer inputs

3-channel feeder CT, 1-channel grounding CT

3-channel feeder PT, 3-channel section I bus PT, 3-channel section II bus PT, 1-channel grounding voltage PT

Pulling out the CT terminal will automatically short-circuit the CT circuit, preventing the high voltage danger of CT open circuit.

Optional expansion board CMA series (only one expansion board can be inserted into the entire machine at the same time)

Function Description of Board Model

CMA216 digital I/O: Y model 18DI+18DO; BC/BCG models 24DI+24DO

CMA216+237 adds 8AI+8AO on top of CMA216

CMA238 8-channel analog input AI

CMA215 high current relay board, with an output of up to 40A, directly drives the solenoid valve to start and stop

CMA198 (Safety Redundancy) is a passive, independent short-circuit protection board that operates even when the entire machine loses power. Divided into A/B/C versions, compatible with 1A/5A secondary CT, different short-circuit setting multiples

Communication interface (standard+option, supporting mainstream protocol of marine engineering ship)

RS232 (front panel, debugging, parameter download)

RS422/RS485

PROFIBUS-DP (Copper/Fiber Optic)

Modbus RTU, Modbus TCP (RJ45/fiber optic)

IEC 60870-5-103 (RS485/Fiber Optic)

IEC61850 (RJ45/fiber optic, KEMA certified)

CANBUS1: Interconnection between devices and interlocking of circuit breakers;

CANBUS2: Engine ECU interface, compatible with MTU, VOLVO, DEUTZ diesel engines.

Protection function (ANSI standard)

Supports a large number of ANSI protection components, with different subsets for different models. The core includes: overcurrent 50 instantaneous/51 inverse time, ground fault 50G/51G; Overvoltage 59, undervoltage 27; Frequency 81; Demagnetization 40; Thermal overload 49; Reverse phase 46; Directional overcurrent 67; Circuit breaker failure 50BF; Out of step 78S; Automatic synchronization 25; Synchronous inspection; Differential protection for 87G generator, 87T transformer, 87LD line differential; Fault location, reclosing 79, voltage suppression overcurrent 51V, rotor overexcitation, disconnection monitoring, etc.

Control and power management (BCG/ECG key capabilities, ship DP dynamic positioning system available)

Up to 5 circuit breakers for indirect control and complete interlocking logic; Built in simple PLC event generator.

Generator power management: load distribution, asymmetric load control, power factor regulation; Large user uninstallation and priority trip management; Black start/power failure management; Automatically start and stop the unit based on the load.

Diesel engine control: speed, governor control; Support magnetic pickup MPU speed acquisition.

Recording and Diagnosis

Protection event history: up to 1000 timestamp records, FIFO overflow coverage.

Total event history: up to 5000 events, no loss due to power outage, can be uploaded to PC for analysis.

Optional Data Recorder: capable of recording AI/DI/DO; Support pre triggering (recording data before the fault occurs); Customizable sampling points, recording duration, and trigger start/stop conditions.

Whole machine self diagnosis: ROM/RAM/EEPROM memory, analog reference voltage, trip coil monitoring, cabinet temperature, circuit breaker operation life statistics, switch disconnection/short circuit detection.

Typical application scenarios

Ships and offshore platforms: generator protection, DP power positioning system power management, diesel unit automation;

Land power stations: diesel/gas generator sets, busbar protection, transformers, feeders, hybrid energy storage systems;

Integrated protection, measurement and control device for high and low voltage switchgear.