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. rage 5b or ai <br /> • OTEC Open � 3 <br /> � Microprocessor control <br /> ■ Simple, easy-to-use control provides transfer switch information and <br /> operator controls _ <br /> ■ LED lamps for source availability and source connected indication, exercise <br /> mode, and test mode. LED status lamps also provided for control set-up and <br /> configuration. � <br /> ■ Pushbutton controls for initiating test, overriding time delays and setting ` <br /> exercise time. <br /> ■ Field-configurable for in-phase open or programmed open transition. <br /> ■ Integral exerciser clock <br /> ■ Control is prototype-tested to withstand voltage surges per EN 60947-6-1. <br /> ■ Gold-flashed generator start contacts <br /> Controf functions <br /> Voltage sensing: All phases on the normal source and single phase on generator source. Normal Source Pickup: <br /> adjustable 90-95%, Dropout: adjustable 70-90% of nominal voltage; Generator Source Pickup: 90%, dropout: 75% of <br /> nominal voltage. <br /> Frequency sensing: Generator Source Pickup: 90% of nominal frequency; Dropout: 75% of nominal frequency. <br /> Exerciser clock: Switch is furnished with an integral engine exerciser configurable for operation on a 7, 14, 21, or <br /> 28-day cycle with a fixed exercise period duration of 20 minutes.A 12-hr exerciser time offset allows for the <br /> convenient setting of exercise time without the need to activate the timer at the exact time that you need to schedule <br /> the generator exercise for.Software selectable capability allows for the exercising of the generator with or without <br /> load. <br /> Time-delay functions <br /> Engine start: Prevents nuisance genset starts due to momentary power system variation or loss. Adjustable: 0-10 <br /> seconds; default: 3 seconds. <br /> Transfer normal to emergency:Allows genset to stabilize before application of load. Prevents power interruption <br /> if normal source variation or loss is momentary.Allows staggered transfer of loads in multiple transfer switch systems. <br /> Adjustable 0-300 seconds, default 5 seconds. <br /> Retransfer emergency to normal:Allows the utility to stabilize before retransfer of load. Prevents needless power <br /> interruption if return of normal source is momentary.Allows staggered transfer of loads in multiple transfer switch <br /> systems. Adjustable 0-30 minutes, default 10 minutes. <br /> Genset stop: Maintains availability of the genset for immediate reconnection in the event that the normal source fails <br /> shortly after transfer.Allows gradual genset cool down by running unloaded. Adjustable 0-30 minutes, default 10 <br /> minutes. <br /> Delayed (programmed) transition: Controls the speed of operation of the transfer switch power contacts to allow <br /> load generated voltages from inductive devices to decay prior to connecting a live source.Adjustable 0-10 seconds, <br /> default 0 seconds. <br /> Elevator signal: Provides a relay output contact for the elevator signal relay(load disconnect). The signal can also <br /> be configured to provide a post transfer delay of the same duration. Adjustable: 0-300 seconds (requires optional <br /> elevator signal relay for use). <br /> Options <br /> Elevator signal relay: Provides a relay output contact for the signal relay function <br /> Programmable exerciser clock: Provides a fully-programmable 7-day clock to provide greater flexibility in <br /> scheduling exercise periods than standard integral exerciser.Time-of-day setting feature operates generator during <br /> periods of high utility rates. <br /> S-1464q(1/15) <br /> Rav fl <br />