MSLC-2

Woodward’s Master Synchronizer And Load Control

The Woodward MSLC-2™ is a microprocessor based load control designed for three-phase electric power generation sites equipped with our DSLC-2™ (Digital Synchronizer and Load Controls). Woodward combines the original MSLC with a decade of application experience, to develop the new MSLC-2.

The MSLC-2™ is a synchronizer, a utility load sensor, an import/export load level control, a power factor control, and a master process control. Applications include power systems which operate in parallel with single- or multiple-utility feeds, as well as new capabilities for multiple segment and intertie breaker control.

For utility parallel systems, the MSLC-2 provides either phase matching or slip frequency automatic synchronizing of the local plant bus to the main power grid through one or several main breakers. The MSLC-2’s load sensor and load control sense true RMS power and provide smooth loading and unloading against the power grid.

Plant voltage is matched to the utility prior to paralleling. Operating modes can be base load or import/export/process power levels against the utility. Power factor or VAR levels are precisely controlled. The MSLC-2 communicates via

Ethernet to control real and reactive loading against the utility by DSLC-2 equipped generators. 32 generators equipped with DSLC-2s can be paralleled to the utility with up to eight individual bus segments. Intertie breakers are controlled and synchronized through individual MSLC-2s actively communicating with the individual DSLC-2s and the other MSLC-2s on the system.

For isolated multiple generator systems, the MSLC-2 can be used to operate tie breakers between groups of generators using the DSLC-2 controls.

Features include: 

• Synchronizer and load control in one box
• Ethernet communication for information exchange between max. 32 DSLC-2™ and 16 MSLC-2™ controls
• Automatic segment recognition
• Supports and communicates up to 8 bus segments
• One Ethernet port for unit-to-unit communications
• Second Ethernet port for remote control and monitoring via Modbus TCP
• Automatic plant loading and unloading for smooth load transfer to and from the utility
• Controls plant wide import/export levels against the utility
• Overall plant power factor control

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