CYG PRS-7367 User Manual

Protection Functions
PRS-7367 201
This protection can be easily configured with any type of transformer likes two winding, three
winding, scot T connection transformer and auto transformer.
In addition, the 64REF can be configured on the high-voltage side, middle-voltage side or
low-voltage side of the transformer.
3.42.1.1 Function Block
64REF
64REF_Blk
64REF_Str
64REF_Op
Id0
64REF_CT_Satu
64REF_CT_Fail
64REF_I0Neu
3.42.1.2 Signals
Table 3.42-1 64REF Input Signals
NO.
Signal
Description
1
ID0
The differential and restrained current
2
64REF_Blk
This signal blocks all the binary output signals of the
function
Table 3.42-2 64REF Output Signals
NO.
Signal
Description
1
64REF_Str
Start signal from 64REF
2
64REF_Op
Operation signal from 64REF
3
64REF_CT_Satu
CT Saturation signal of 64REF
4
64REF_CT_Fail
CT fail singal of 64REF
5
64REF_I0Neu
I0>B0×I Signal of 64REF
3.42.2 Protection Principle
3.42.2.1 Fault Detector
REF's pickup criterion is:
0
I 64 _ _
d
REF Cur Str
Where:

CYG PRS-7367 Specifications

General

Brand	CYG
Model	PRS-7367
Category	Control Unit
Language	English