9907-006_WOODWARD MSLC Master Synchronizer and Load Control
9907-006_WOODWARD MSLC Master Synchronizer and Load Control
OVERVIEW
The Woodward MSLC is a microprocessorbased load control designed for three-phase electric power generation sites equipped with Woodward DSLC™ Digital Synchronizer and Load Controls which operate in parallel with the utility. The MSLC is a synchronizer, a utility load sensor, an import/export load level control, a power factor control, and a master process control.The MSLC provides either phase matching or slip frequency automatic synchronizing of the local plant bus to the main power grid. The MSLC talks over its own LON (Local Operating Network using Echelon LonWorks® * network technology) to control real and reactive loading against the utility by DSLC-equipped generators.
ADVANTAGES
• Reduces wiring between synchronizer, load control and automatic loading controls
• Having functions integrated into one box eliminates the need for redundant sensors (like PTs, CTs, and MOPs) that connect to individual modules such as the load sensor and synchronizer
• Hand Held Programmer reduces installation and calibration time by allowing the user to set up the control prior to starting the system
• Hand Held Programmer lets operator monitor generator parameters, contact switches, and analog I/O for installation and troubleshooting
• Reduces the amount of cabinet space needed
• Digital signal processing makes the MSLC resistant to power line distortions and harmonics
• Digital communications across the LON reduce susceptibility to noise on the load sharing lines
• Three-phase true RMS power sensing makes the MSLC accurate even with unbalanced phase loading and voltage fluctuations
• Local Area Network carries plant parameters for use in a distributed control system
SPECIFICATION
• Synchronizer and load control in one box
• Automatic plant loading and unloading for bumpless load transfer to and from the utility
• Controls plantwide import/export levels against the utility
• Overall plant Power Factor control
• Accurate control of non-linear and distorted utility line wave forms
• Digital communications network for information exchange between MSLC and individual DSLC™ controls
• UL and cUL Listed
Environmental Specifications
Operating Temperature：–40 to +70 °C (–40 to +158 °F)
Storage Temperature：–55 to +105 °C (–67 to +221 °F)
Humidity：95% at 38 °C
Electromagnetic Susceptibility：ANSI/IEEE C37.90.2; ANSI C37.90.1-1989
Current Transformer Inputs
Current：0–5 Arms, 7 Arms max.
Burden： Less than 0.1 VA per phase
Accuracy.：Three phase utility bus
- User name Member Level Quantity Specification Purchase Date
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