REF HIGH IMPEDANCE SETTING

To have high sensitivity for Transformer REF protection Transformer REF setting as 10% 0r 15% or less. Transformer REF setting may not be more than 20%.

DSM REQUIREMENT

1.IP Address

2.Subnet Mask

3.Default Gateway

4.HAND OVER BOOK

HI POT TEST TIPS

1. Before IR value test remove the VT primary neutral and reconnect during HV test.

2. Remove the line capacitance primary links

3. Short all CT secondary