FEEDER METER | TSA & SBT 00

DESCRIPTION
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Smart Fuse Switch (SFS)

Description

NH 00 | UPPER SOLUTION

The SBT is the feeder meter for NH 00 switches. It´s located on top of the fuse switch, as an extension of the BTVC.
The SBT is connected to the CT’s and voltage taps installed at the rear of the fuse switch.

TSA (ADVANCED SUPERVISION CARD NH 1/2/3)

TSA is a three phase feeder meter compatible with both upper and lower LV monitoring solutions. It calculates RMS values per second of the following variables:

Voltage per phase
Current per phase and calculated neutral current
Imported / exported active, reactive and apparent power per phase and total
Power factor per phase
Phase presence
Frequency
Cumulative values of imported and exported energy
Cumulative values of reactive energy in all four quadrants
Temperature inside the card
Voltage and current oscilography in case of an alarm

Moreover the card can generate the following alarms per phase:
blown fuse, over/under voltage,current overload, shortcircuit current.

TSA can communicate by DLMS / COSEM protocol on HDLC with the LV Edge Node, or by Modbus RTU. They are connected by a RS485 serial bus in daisychain format (maximum 24 feeder meters per bus).