BASIC LINE – PROFESSIONAL LINE – WI LINE – SYSTEM LINE
Woodward supervision relays for low voltage applications are equipped with a precise micro-controller and designed for DIN-rail mounting. They are easy to operate and simplify commissioning. This is advance technology at low price. Rated voltage and frequency can be set by means of DIP switches; pick-up values and tripping delays via potentiometers.
Woodward’s digital separate or combined relays provide all common protection functions for low and medium voltage applications, and are designed for DIN rail mounting. Rated voltage and frequency can be set by means of DIP switches; pick-up values and tripping delays via potentiometers. The wide-range power supply for AC and DC make the relays universal. An optionally available interface adapter enables the devices to communicate with your SCADA system.
WI Line & System Line
All relays from this Woodward’s WI Line are self-powered time overcurrent relays, which means they take their energy from the current transformers. Since they do not require auxilliary power, the WI Line relays are well suited for use in self-sustaining transfer and distribution stations, local grids, and ring-main-units. Tripping characteristics range from two-stage, independent (DEFT) and dependent (INV) time-overcurrent protection, up to special characteristic curves. As further options, we offer some relays with integrated earth fault protection.
Woodward has also developed serial products, which match nearly any circuit breaker commonly available on the market. The electronic parts of the relays are completely sealed in. This makes the relays resistant to even the very worst environmental influences.
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