LS-5 Breaker control (LS-521 LS-511 - LS-522 LS-512)

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.

LS-521 LS-511

The LS-5x1 devices manage synchronization, loading and un-loading on each bus segment and send the required voltage, frequency and phase angle references via CAN bus
to the easYgen-3400XT/3500XT genset controllers. When serving an incoming mains
breaker it automatically detects mains failure, performs mains decoupling and sends the
start signal to the easYgen. The LS-5x1 is software selectable to be applied as an independent synch check relay, mains circuit breaker control or bus tie-breaker control
thereby providing exceptional versatility and value for OEM switchgear builders, generator packagers, and system integrators.

LS-522 LS-512

The LS-5x2 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 guidance of an external supervisory control. The LS-5x2 is software selectable to be applied as an LS-5x1 thereby facilitating hardware standardization to OEM switchgear builders, generator packagers, and system integrators.

Part numbers list:

84402150 LS-521-5/P1 1CB, 1 BREAKER CONTROL & PROTECTION (Panel Mounting)

84402152 LS-511-5/P1 1CB, 1 BREAKER CONTROL & PROTECTION (In-Cabinet Mounting)

84402151 LS 522-5/P1 2CB, 2 BREAKER CONTROL & PROTECTION (Panel Mounting)

84402153 LS-512-5/P1 2CB, 2 BREAKER CONTROL & PROTECTION (In-Cabinet Mounting)