Introduction; Product Overview; Scope; Abbreviations & Definitions - GE Intellix BMT 330 Installation Manual

INTRODUCTION

Product Overview

Intellix™ BMT 330 (the product) is a monitoring system that continuously:
▪
measures the condition of transformer bushings (through changes in Capacitance
and Power Factor) for one or two sets of three bushings in a single three-phase
transformer, or three single-phase transformers.
▪
detects any Partial Discharges (PD) activity in the transformer main tank (measured
as high frequency pulses).
All measurements and alarms can be reported to a remote monitoring centre via the
standard RS-485 connection or one of the other available communications options.
Alternatively, they can be manually downloaded locally using the USB cable. The product
is supplied with PC configuration software that is used to set up the product. Refer to the
Intellix™ BMT 330 User Manual.
The following sensors can be fitted:
▪
Three Bushing Adaptors (Primary input) connected to the tapping point of the
bushings being monitored.
▪
(Optional) Three Bushing Adaptors (Secondary input) connected to the tapping
point of a second set of bushings being monitored.
▪
Three Current Transformer (CT) sensors at the transformer(s) neutral (if available).
▪
Three magnetically-mounted temperature sensors (MMTS) mounted on the
transformer tank(s) to measure the transformer top oil temperature.
▪
A combined ambient temperature and humidity sensor mounted at the bottom of
the product cabinet.

Scope

This manual details the installation tasks for the product.
Abbreviations & Definitions
Table 1-1: Installation materials
Abbreviation
BMT
HFCT
HV
LOTO
LV
PD
MA-017 – BMT 330 Installation Manual – Rev 3.3
Meaning
Bushing Monitor for Transformers
High Frequency Current Transformer
High Voltage
Lock Out, Tag Out procedure
Low Voltage
Partial Discharge
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