Overview
Woodward’s LS-5 Series are synchronizer controllers with integrated mains decoupling and protection features. The applications range from independent synch check relay to complex power management relay with multiple utility feeds, bus tie breakers and group breakers in combination with Woodward’s easYgen-3400XT/3500XT equipped genset controllers. Wiring efforts are reduced to a minimum since only one CAN bus connection is required between all LS-5 and easYgen controllers to transmit AC measurement signals, I/O states, flags etc.
The LS-5×2 relays simplify the applications where load bus is served by a mains circuit breaker (MCB) and a generator group breaker (GGB). It senses voltage and current, quantifies the synchronization parameters and transmits the signals via CAN bus to the easYgen-3400XT/3500XT genset controllers. The two breakers control capability along with mains decoupling and protection features make it a perfect choice for transfer switch control under the guidance of external supervisory control. The LS-5×2 is software selectable to be applied as an LS-5×1 thereby facilitating hardware standardization to OEM switchgear builders, generator packagers, and system integrators.
The LS-5×2 Series is available in two different mounting styles. An LS-522 with a plastic housing and graphic LCD display is designed to be mounted on the cabinet’s front door. An LS-512 with an aluminum powder coated housing without a display is designed to be back panel mounted.
Features
- Up to 16 LS-5×2 relays can be operated in one network with up to 32 easYgen-3400XT/3500XT
- Remotely selectable breaker transition modes: Open, Closed (short parallel <100ms), Interchange, Indefinite parallel
- Software selectable to function as one breaker control
- Internal power calculation with option to feed active power from the external transducer
- Phase match or slip frequency synchronization with voltage matching
- Full protection package (including df/dt (ROCOF), phase shift, and mains voltage increasing protection according to new German grid code)
- Segment control for the load sharing
- Event Log with up to 300 entries
- Automatic date and time synchronization between the LS-5 units and the connected easYgen3400XT/3500XT controls
- LS-5 “Standalone” mode without the easYgen-3400XT/3500XT is possible
- Preconfigured application modes that simplify the configuration process for complex multibreaker applications
- AUTOmatic and MANual mode
- Full remote control via CAN or RS-485 interface
- Breaker open/close failure detection
- Mains decoupling “Test” mode
- Lock keypad feature
- 4 freely configurable alarms
- 8 Freely configurable LED`s on the LS-512 back panel mountable device
- Multilingual capability: English, German, Spanish, French, Italian, Portuguese, Japanese, Chinese, Russian, Turkish, Polish
Highlights
- Designed as a compact solution for complex power management applications
- Control up to 32 breakers on up to 32 bus segments in an application
- Purpose-built application modes
- Synch check and mains decoupling in one compact controller
- Utility import/export control
- Accepts utility approved power measurement for loading/unloading
- Automatic and Manual mode
- LS-5 “Standalone” mode for use without easYgen3400XT/3500XT System
- Logics Manager functionality for application customization
- Adjustable vector groups for synchronization
- CAN and RS-485 interfaces for remote control and visualization
- True RMS sensing
- Available as cabinet front door-mounted or DIN-Rail back panel mounted rugged metal housing
- Freely configurable relay outputs
- Freely configurable discrete inputs
- RoHS2, BDEW and VDE AR-N 4105 compliant
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