Description
Woodward SPM-D1115B 8440-2165
Technical Specifications
- Product type: Generator synchronizing and load sharing controller
- Measurement: Voltage, frequency, phase angle
- CT input: 5 A / 1 A
- PT input: 100 V class
- Output: Relay contacts for breaker close
- Load sharing: Active and reactive
- Supply: DC24 V / AC
- Operating temperature: -20 °C to +70 °C
- Storage temperature: -40 °C to +85 °C
- Humidity: 5 % to 95 %, non-condensing
- Protection: IP20 rear / IP40 front
- Installation: Panel cutout
- Display: LED / LCD
- LEDs: Sync, breaker, alarm
Functional Features
- Automatic synchronizing of generator to grid
- Voltage and frequency matching check
- Phase angle difference closing
- Active and reactive load sharing
- Reverse power and over frequency protection
- Event recording
- Front pushbuttons and LEDs
- Breaker close pulse output
- Manual synchronizing override
- Wide industrial temperature range
Application Scenarios
- Diesel genset grid paralleling
- Marine generator synchronization
- Power plant switchgear sync check
- Captive power plant load sharing
- Emergency generator bus tie
Materials and Construction
- Front panel: Coated metal
- PCB: FR4
- CT / PT isolation: Transformers
- Relay: Sealed relays
- Display: LCD or LED
- Housing: Flame retardant plastic
Structural Features
- Rectangular panel mount housing
- Front panel LEDs and pushbuttons
- Rear terminals for CT, PT, supply, and breaker output
- Internal sampling and CPU
- Panel gasket
- Removable terminals
Working Principle PT signals measure generator and bus voltage. The unit compares voltage amplitude, frequency, and phase angle. When within synchronizing window, it outputs close pulse to generator breaker. Load sharing lines adjust governor and AVR to share kW and kVAr between units.
Installation Requirements
- Panel mount through cutout
- Connect generator and bus PT secondaries
- Connect CT secondaries
- Wire breaker close circuit
- Supply power
- Grounding
- Temperature -20 °C to +70 °C
- Set PT ratio, CT ratio, sync window after power-up
- Manual sync test before auto use
Precautions
- CT secondary must not open
- PT secondary must not short
- Verify phase sequence
- Do not bypass sync check protection
- Periodically calibrate sync window
- Store spares in dry packaging
- Check breaker close timing annually
