简单描述：

The PGTN1 detects short circuits between phases or phase and earth, voltage drops and any operation faults. In addition to the transformer protection and monitoring, it integrates a backup protection function for catenaries and feeder.

详细介绍：

Built-in vector compensation can suit all transformers, including Scott.

PROTECTION FUNCTIONS :
50 / 51 / 67 / 27 / 50N / 50BF
BACKUP FOR PDZIN1
21
The differential NPDT 600s detect various types of faults such as faults between phases, short-circuit between a
winding and the earth or between turns on the same phase.
MAIN OPERATING FUNCTIONS :
87T
64REF (option, NPDT 630)
CUSTOMER BENEFITS
Temperature monitoring
Helps network operation
Monitoring and
assistance to maintenance of CB
Inrush insensitive (H2 detection)
Safe operation with secured tripping
circuit
OPERATING FUNCTIONS :
Voltage reverse protection
CB SF6 fault monitoring