User's Manual

18 Universal Metering Transponder for kV2c™ Meter User Guide
Functional Description of the UMT-C-KV
Time-of-Use (TOU)
The kV2c meter can perform time-of-use metering when required and programmed
accordingly. The time-of-use schedule is loaded into the meter during meter/RCE
integration. This schedule determines the times that the different TOU rates are in
effect.
The UMT-C-KV supports the kV2c meter TOU functionality. The UMT-C-KV
transponder can be programmed to retrieve TOU data when its registers are
appropriately mapped.
Billing Data
The kV2c transponder can retrieve active, reactive, and apparent power from a
correspondingly programmed kV2c meter. The UMT-C-KV can be programmed at
Integration to retrieve any of these values from a kV2c meter. Table 2.4 lists the
approved quantities that the kV2c meter is capable of measuring.
Loss of Power Handling
The UMT-C-KV transponder is powered by DC voltage from the meter power
supply. It does not have its own “on-board” power supply. The UMT-C-KV
recovers from any and all voltage interruptions and low voltage events upon
restoration of normal power.
Data is stored in non-volatile memory in the UMT-C-KV and is not lost during
brief power interruptions. The UMT-C-KV marks 5-minute bins that were marked
as invalid. The Power Down Count register increments for each power event.
AC Input Voltage Tolerance Characteristics
Unregulated AC power for the UMT-C-KV is supplied from the kV2c meter and
has a dependent voltage tolerance curve (CBEMA).
Table 2.4 Metered quantities
Metered Quantity
Delivered Energy (Wh)
Received Energy (Wh)
Net Energy (Wh)
Secure (Sum) Energy (Wh)
Delivered Reactive Energy (VARh)
Received Reactive Energy (VARh)
Delivered Apparent Energy (VAh)
Received Apparent Energy (VAh)
Delivered Q Energy (Qh)
Received Q Energy (Qh)