ABB UniSec Manuale di funzionamento e manutenzione - Pagina 6

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U N I S E C D I G I TA L M A N U A L E D I F U N Z I O N A M E N TO E M A N U T E N Z I O N E

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2. General information about UniSec Digital

The UniSec Digital monitoring system can be

configured with the following components:

• Concentrator MDC4-M

• Wireless temperature sensors

• Environmental sensor (optional)

• Gas pressure sensor (optional)

Each sensor is connected via cable or in the wireless

mode (in the case of temperature sensors) to the

concentrator, which collects all the data measured

and transmits them to the user via LHMI module or

mobile APP.

Typically, 3 wireless sensors are installed in the main

circuit of the digital units (cable connection

monitoring), but up to 9 can be installed if

monitoring relating to circuit-breakers and busbars

is required.

Temperature sensor

pressure

The sensors installed in the switchgear enable the

following operating parameters to be monitored:

• Temperature of the main circuit (the monitoring

points depend on how the switchgear has been

configured)

• Temperature and humidity levels in the cable

compartment

• ressure of gas in GSec/HySec apparatuses

NOTE

The sensors in the monitoring system do

not need to be calibrated

Ambient T/Humidity

Local HMI

MDC4 -M Data concentrator