DSLC-2

Productomschrijving

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 power management for complex power systems.

The DSLC-2 control combines synchronizer, load sensor, load control, dead bus closing system, VAR, power factor and process control, all integrated into one powerful package. Applications al-low up to 32 generators to be precisely paralleled and controlled. Ethernet network A provides dead bus closing, load sharing, and VAR sharing information between DSLC-2 and MSLC-2 units. Ethernet port B provides customer remote control and monitoring capability using Modbus TCP al-lowing easy DCS and PLC interfacing. The Ethernet network provides each device the capability to monitor all other devices on the network. If the Ethernet network is compromised, an alarm is provided and the system can be transferred to a droop control mode.

Redundant load sharing is selectable using both Ethernet A and B networks for improved reliability. If one network is compromised, the system automatically switches to the second network. Slip frequency or phase matching automatic synchronizing with or without dead bus closing is se-lectable. Permissive mode provides synch check relay functionality.

The DSLC-2 control senses true RMS power and provides soft bump-less loading and unloading functions. It can either base load or set import/export/process power levels against the utility, or accurately share loads on isolated, multiple generator systems. VAR and power factor control flexibility allows you to either provide a set level of VARs to the utility or to maintain a constant power factor for reliable operation. The VAR/PF control also shares kVARs in an isolated system, maintaining proportional reactive loads (kVARs) on all machines more accurately than droop or cross-current voltage systems.

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 unbal-anced 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. Graphical overview of generator and bus bar parameters with trending makes the DSLC-2 commissioning friendly. All the Woodward devices can be programmed from a single connection to the network.
• The ToolKit can be accessed either via one of the Ethernet ports or via RS-232 port.