DEIF SCM-1 Synchronous Measurement Control Module
I. Basic Information
Brand: Denmark DEIF (DanControl)
Full name: Synchronizing/Measuring Module
System: DELOMATIC 3 Generator Set Parallel Control System, each SCM-1 module controls 1 generator set
Installation method: 19-inch rack-mounted plug-in installation, European-style backplane bus networking
Core Integrated Functions
1. High-precision electrical parameter measurement
Input: 1 phase current of generator, 2 phase voltages (generator side + bus side)
Measurable: Three-phase voltage, three-phase current, frequency, active/reactive power, power factor, energy, harmonics (up to 500Hz)
Measurement accuracy: Class 1 (IEC 688 standard), CT supports 1A/5A options, single-phase power consumption is approximately 0.3VA
Overload capacity: 10A continuous, 75A for 10 seconds, 300A for 1 second
DEIF
2. Automatic synchronization and grid connection control
Dynamic synchronization detection: Frequency difference, voltage difference, phase difference are automatically adjusted, controlling the governor and voltage regulator to meet the conditions and output closing command to achieve generator paralleling; supports advanced synchronization and grid connection, after closing, the generator can quickly take load.
3. Generator closed-loop regulation
Frequency / active power regulation: Output speed control signal to stabilize the grid frequency and distribute the active load of the paralleled generator sets
Voltage / reactive power regulation: Control the excitation system, stabilize voltage + reactive power equalization
4. Integrated protection functions
Overcurrent, reverse power, bus overvoltage / undervoltage, frequency abnormal protection, during faults, trip and stop the machine, lock grid connection, and simultaneously upload fault alarm information.
Electrical Technical Parameters
Power supply: DC 24V, total machine power consumption ≤ 10W
Rated frequency: 40～70Hz (compatible with 50/60Hz industrial frequency)
Voltage sampling: PT secondary 100V input
Switching quantity: Multiple DI for collecting circuit breaker position and external interlock; multiple relays DO output closing, speed regulation, voltage regulation, fault trip signals
Communication: DEIF dedicated system bus, data interaction within the same rack with the main control CM module
Operating environment: -25℃～+55℃; storage – 40℃～+85℃; humidity 5%～95% (no condensation)
Protection: Panel IP20, only used in the control cabinet
Typical Application Scenarios
Marine power station: Automatic paralleling of multiple diesel generators, load distribution, bus protection
Factory backup generator sets, oilfield / mining self-contained power stations, microgrid systems
Data center, hospital and other important load diesel generator set grid connection control system
DEIF SCM-1 Synchronous Measurement Control Module I. Basic Information
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