GE T60 User Manual

GE Multilin T60 Transformer Protection System 5-213
5 SETTINGS 5.6 GROUPED ELEMENTS
5
5.6.6 TRANSFORMER ELEMENTS
a) MAIN MENU
PATH: SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  TRANSFORMER
This menu contains the settings for the transformer differential elements and the transformer thermal elements.
The thermal elements include hottest-spot temperature, aging factor and loss of life. The computation of these elements fol-
lows IEEE standards C57.91-1995: “IEEE Guide for Loading Mineral-Oil-Immersed Transformers” and C57.96-1989: “IEEE
Guide for Loading Dry-Type Distribution Transformers”. The computations are based on transformer loading conditions,
ambient temperature, and the entered transformer data.
 TRANSFORMER

 PERCENT
 DIFFERENTIAL
See page 5–214.
MESSAGE
 INSTANTANEOUS
 DIFFERENTIAL
See page 5–219.
MESSAGE
 HOTTEST-SPOT
 TEMPERATURE
See page 5–219.
MESSAGE
 AGING FACTOR

See page 5–220.
MESSAGE
 LOSS OF LIFE

See page 5–221.

GE T60 Specifications

General

Frequency	50/60 Hz
Mounting	Panel Mount
Protection Functions	Overcurrent
Communication Protocols	DNP3
Operating Temperature	+70°C
Enclosure	IP54 (front panel)