Caroline County, Virginia Request for Proposals Project 25 Radio ...
Caroline County, Virginia Request for Proposals Project 25 Radio ...
Caroline County, Virginia Request for Proposals Project 25 Radio ...
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UHF/700 MHz P<strong>25</strong> <strong>Radio</strong> Communications System<strong>Request</strong>ion <strong>for</strong> <strong>Proposals</strong><strong>Caroline</strong> <strong>County</strong>, <strong>Virginia</strong>h. When the fault has cleared, the static bypass transfer switch returnsthe load to the UPS system.i. If the battery is disconnected, the UPS continues to supply power tothe load with no degradation of its regulation of voltage andfrequency of the output bus.2. Manual operation includes the following:a. Turning the inverter off causes the static bypass transfer switch totransfer the load directly to the normal AC supply circuit withoutdisturbance or interruption.b. Turning the inverter on causes the static bypass transfer switch totransfer the load to the inverter.3. Controls and Indications:a. Basic system controls shall be accessible on a common controlpanel on the front of the UPS enclosure.E. Per<strong>for</strong>mance Requirements:1. Input:2. Output:6.5.2 DC Powera. Single phase, three-wireb. Voltage: 120/240V Nominalc. Frequency: 50/60 Hz +/- 3 Hza. Capacity: to be determined by SELECTED VENDOR duringpreliminary designb. Voltage: 120/240Vc. Frequency: 60 Hz, +/- 3 Hzd. Maximum Voltage Distortion: 5% at full loadA. The SELECTED VENDOR shall per<strong>for</strong>m electrical loading analysis <strong>for</strong> shelterequipment, excluding HVAC subsystems, during preliminary design to verify DCpower plant size required and battery count. All electrical loading calculationsMay 27, 2011 Page 67 of 134
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