Products

Quality and Reliability for Power Distribution Systems

Woodward offers a wide variety of controllers for the synchronization and load share market. Basic controllers provide standard features for parallel or load share applications that are easy to set up and use. For more complex load flows, or even protection schemes, we provide products with integrated protection features and communication interfaces to your SCADA (Supervisory Control and Data Acquisition) system. 

You can eliminate programming effort in your PLC (Programmable Logic Control) by sending our controls a run or stop command. The controllers enable synchronization and load share sequencing across generator, mains, and tie breakers.



SPM-D2-10 Series

Drop-in successor to SPM-D10 synchronizers

The SPM-D2-10 synchronizers provide automatic frequency, phase and voltage matching using either analog or discrete output bias signals.

These synchronizers are applied to a wide range of prime movers and generators, as their control signals may be set to fit several types of gensets -- from fast-reacting diesel engines to soft-reacting gas turbines.

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Key features:
  • Compatible with a wide range of governors, automatic voltage regulators, and circuit breakers
  • True RMS voltage sensing for reduced susceptibility to harmonics
  • Front face synchroscope for easy commissioning
  • HMI programming and USB connectivity to Woodward ToolKit service tool
  • Synchronization for one or two circuit breakers
  • Phase match or slip frequency synchronization with voltage matching
  • Three position/analog outputs for speed and voltage bias signals
  • Circuit breaker time compensation
  • Discrete inputs for operating mode selection
  • Two-line liquid crystal text display for operation, alarm indication and visualization
  • LED synchroscope
  • Wide range power supply option available
  • PC and front panel configurable
SPM-D2-11 Series

Drop-In Successor to SPM-D11 Load Share Synchronizers

The SPM-D2-11 synchronizer provides automatic frequency and phase and voltage matching using either analog or discrete output bias signals.

It combines synchronizing for one circuit breaker, load and power factor control, or isochronous load sharing and generator protection. This synchronizer is applied to a wide range of prime movers and generators, as its control signals may be set to fit several types of gensets.

All SPM-D2 synchronizers are password protected and configurable either through HMI (as were the SPM-D units) or through the ToolKit configuration tool with USB connectivity.

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Key features:
  • Compatible with a wide range of governors, automatic voltage regulators, and circuit breakers
  • True RMS voltage sensing for reduces susceptibility to harmonics
  • Front face synchroscope for easy commissioning
  • HMI programming and USB connectivity to Woodward ToolKit service tool
  • Drop-in replacement for existing SPM-D11 synchronizers
SPM-A

Woodward Synchronizer

Woodward’s SPM-A speed and phase matching synchronizer provides automatic frequency and phase matching when used with 2301, 2301A, and EPG (Electrically Powered Governor) electric load sharing control systems.

Key features:
  • Automatic synchronization of generators
  • Adjustable dynamics
  • Frequency, phase, and optional voltage matching
  • Selectable match-up time
  • Automatic circuit breaker closure
  • Selectable output impedance

     

DSLC-2

The Woodward DSLC-2™ (Digital Synchronizer and Load Control) is a microprocessor-based synchronizer and load control designed for use on three-phase AC generators. The DSLC-2 combines synchronizer, load sensor, load control, dead bus closing system, VAR, power factor and process control, all in one powerful package.

Applications allow up to 32 generators to be precisely paralleled and controlled. A dedicated Ethernet system provides seamless communications between DSLC-2 and MSLC-2 units. A second Ethernet port is provided for customer remote control and monitoring capability using Modbus TCP allowing easy DCS and PLC interfacing. Modbus RTU is available through a separate RS-485 port.

A redundant Ethernet network is possible with the two Ethernet ports.

Woodward used the original solid DSLC combined with an additional decade of application experience, to develop the new DSLC-2. The DSLC-2 excels in either simple generator or complex generator system applications. The DSLC-2/MSLC-2 combination provides multiple unit, segment, utility, and intertie breaker control for complex power systems.

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Key features:
  • Dedicated Ethernet network for precise system communications between all DSLC-2’s and MSLC-2’s reduces system wiring.
  • Ethernet Modbus TCP, and Modbus RTU, for remote control and monitoring.
  • Redundant Ethernet communication for enhanced reliability.
  • The “system update” feature allows for removing or adding generator sets.
  • The new DSLC-2 can be configured for multiple applications.
  • Integrated DSLC-2 and MSLC-2 system functionality eliminates the need for redundant sensors (like PTs, CTs, and MOPs) that connect to individual modules such as the load sensors and synchronizers.
  • Back panel mounting and a reduced size frees up door space and provides easy wiring.
  • Eliminates the need for additional relay logic to control dead bus closing.
  • Slip frequency paralleling, voltage matching, and speed bias transfer between the synchronizer and load control result in smooth paralleling without the risk of reverse power trips.
  • Three-phase true RMS power sensing makes the DSLC-2 control accurate even with unbalanced phase loading and voltage fluctuations.
  • Phase angle correction for GCB when a transformer is included in the system.
  • The Woodward ToolKit™ software allows flexible setup using the same basic menu tree as the original DSLC plus an overview screen.
  • The ToolKit can be accessed either via one of the Ethernet ports or via RS-232 port.
MSLC-2

Woodward’s MSLC-2™ functions with the DSLC-2™ control to provide synchronization and load control across Utility and Intertie breakers. The MSLC-2/DSLC-2 combination operates over an Ethernet communication network to control simple or complex generator system applications.

This combination, 32 DSLC-2’s and 16 MSLC-2’s, provide multiple unit, multiple segment, utility and intertie power management for complex power systems. Controls plant wide import/export levels while always providing bump-less load transfers with utility.

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The MSLC-2 control combines synchronization, dead bus closing, utility/intertie load sensor, baseload control, import/export control, VAR, power factor, and a master process control in one powerful package. 

The MSLC-2 provides phase matching or slip frequency synchronization, with voltage matching, across a utility or intertie breaker. The MSLC-2/DSLC-2 combination can handle multiple utility connections with a maximum of 8 bus segments in one application.

The MSLC-2’s load sensor and load control sense true RMS power and provide a bump-less loading and unloading against a utility grid. Baseload, import/export, process, and utility unload modes control the KW power between different power sources at the same time controlling the reactive power, VAR and power factor.  Reactive power is also ramped on and off for the smoothest load transactions between power grids.

The MSLC-2 communicates via Ethernet, with redundant Ethernet now available, to control real and reactive loading against the utility by DSLC-2 equipped generators.
The tie breaker mode allows synchronization between multiple generator systems. Segments are connected and power can be measured across an intertie, but no load control is functional when in Tie breaker operation.

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