Description
Technical Specifications
- Product Model: LDSYN-101 3BHE005555R0101
- Brand: ABB
- Warranty: One Year
- Input Voltage: 24 VDC nominal (19.2–28.8 VDC operating range)
- Operating Temperature: -20 °C to +60 °C
- Storage Temperature: -40 °C to +85 °C
- Response Time: ≤ 1.5 ms
- Protection Class: IP20 (cabinet rack installation)
- Accuracy Class: ±0.2° phase angle measurement
- Output Frequency: 50 / 60 Hz grid synchronous sampling
- Rated Current Range: Input consumption ≤ 60 mA
- Communication Interface: Fibre optic link, terminal block signal terminals
- Supported Protocols: ABB proprietary synchronous bus protocol
- Overload Capacity: 1.25x continuous signal input for 60 seconds
- Dimensions: 120 mm × 90 mm × 28 mm
Product Overview
The LDSYN-101 3BHE005555R0101 is a high-precision synchronous voltage measurement module developed for ABB Symphony Plus distributed control systems. The module samples grid AC voltage signals, calculates real-time phase angle, frequency and voltage magnitude, and delivers synchronised measurement data to DCS controllers. It provides critical reference signals for generator synchronisation, load sharing and grid-tie control logic. Built-in continuous diagnostics detect signal loss, wiring faults and frequency deviation to trigger pre-alarms before operational disruptions. Control and electrical engineers deploy this unit within power plant control cabinets to maintain stable grid interconnection. It eliminates phase measurement drift caused by electrical noise, supports reliable paralleling operations and minimises equipment stress during generator connection to live power networks.
Application Scenarios
- Thermal Power Plant Generator Synchronisation: Captures busbar and generator voltage signals to enable automated generator paralleling. Precise phase monitoring prevents out-of-phase closure of generator breakers and avoids severe mechanical shock to turbine-generator sets.
- Combined Cycle Power Plant Balance-of-Plant DCS: Integrates into Symphony Plus racks to monitor grid reference signals for auxiliary power transfer control. Fibre optic communication isolates the module from high-voltage induced interference in turbine hall environments.
- Petrochemical Cogeneration Facilities: Supports island-mode and grid-parallel operation for on-site gas turbine generators. Continuous frequency and voltage tracking maintains stable power supply to critical process equipment during utility grid fluctuations.
- Hydroelectric Power Station Control Panels: Delivers synchronisation reference for multiple hydro-generator units. Wide operating temperature tolerance allows installation in unconditioned control buildings close to water turbine assemblies.
Reviews
There are no reviews yet.