7. THE MONITORED THREE PHASE VOLTAGE MAY BE CONNECTED HV, TV OR LV SIDE.
8. DERIVED NEUTRAL POINT. SEE P64X/EN T/- - FOR DETAILS OF RESISTORS.
(USED BY V/Hz W1 PROTECTION AND OTHER VOLTAGE PROTECTION).
2. SEE TABLE 1 FOR BIAS ASSIGNMENT TO ACTUAL WINDINGS. T1
3. WYE GROUND INPUTS APPLICABLE FOR GROUNDED (EARTHED) WINDINGS.
4. THE VT MAY BE CONNECTED ACROSS ANY PHASE-PHASE PAIR.
PIN TERMINAL (P.C.B. TYPE)
C.T. SHORTING LINKS MAKE BEFORE (b) DISCONNECT.
IS ALWAYS AN HV WINDING CONNECTION.
5. FOR COMMS OPTIONS SEE DRAWING 10Px4001.
TERMINAL.
(USED BY V/Hz W2 PROTECTION ONLY).
6. THE VT STAR POINT MUST BE MADE EXTERNALLY AS SHOWN.
(b)
(c)
NOTES:
(a)1.
MiCOM P645 (PART)
P2S2
P1S1
GROUNDED WYE
P1S1
P2S2
TV
NOTE 6
HV
S1 P1
S2 P2
NEUTRAL TAILS
LV
NOTE 3
NOTE 7
b
a c
n
N
B
A
C
CC
a
N
n
A
b
c
NOTE 4
B
C
B
A
B
A
E4
FLUX
V
E3
N
E1
V
C
V
E2
C3
C1
B
C4
V
A
C2
V
C15
Y (HV)
Y (TV)
C14
C11
C13
C16
Y (LV)
C12
E1
E2
C4
C3
C1
C2
OPTIONAL
N
V
C
V
B
V
A
V
C
A
B
A
a
b
c
C
B
NOTE 8
VEE CONNECTED VTs (ALTERNATIVE)
TN3
TN2
TN1
Drg
No:
Issue: Revision:
Date:
Date:
Name:
Chkd:
DO NOT SCALE
CAD DATA 1:1 DIMENSIONS: mm
Title:
Substation Automation Solutions
ALSTOM GRID UK LTD
(STAFFORD)
Sht:
Next
Sht:
14/07/2014 S.WOOTTON
CID SWOO-9LNAWE. TABLE 1 REMOVED. NOTES 5&6 REMOVED. TMLS C11-C16 WERE D11-D16.
10P64504
2
-
EXTERNAL CONNECTION DIAGRAM: 5 BIAS INPUT TRANSFORMER
DIFFERENTIAL (24 I/P & 16 O/P) WITH 4 POLE VT INPUTS (60TE)
I
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