UTMC OTU/MOVA Handbook
667/HB/31601/000
Page 19
Issue 5
3. SPECIFICATIONS
3.1 GENERAL
This Unit meets all the Environmental and EMC requirements as specified in TR2500
and BS EN50293:2001 respectively.
3.2 ELECTRICAL
3.2.1 Mains Supply
Voltage:
230V AC RMS, +15% to -20%
Frequency:
46 - 54 Hz
Mains fused:
The recommended rating of this external fuse is 2A anti-
surge. (The mains cable is rated to 6A, fuses up to 5A may
be used)
3.2.2 Power Supply
The unit incorporates its own internal power supply unit that provides the necessary
supply voltages to all of the cards and assemblies associated with the complete unit.
The cards operate from a single voltage regulated supply.
Output Supply:
Regulated 13.65V DC
Rating:
3.15A
Powering:
Processor card, IO card(s), Modem and Charging the Battery
3.2.3 Power Dissipation
Low power CMOS devices are used throughout the unit to keep the power dissipation
as low as possible.
Total power
consumption
8.0 W typical (using maximum configuration of 3 x IO cards and
battery float charging)
ELEXON code
79 10 008 000 100
3.2.4 Support Batteries
The Outstation unit is fitted with a rechargeable battery which supports the entire unit,
including the modem, for a minimum of four minutes under all conditions in order that
the Outstation may inform the Instation of a mains power failure. This battery must not