Voltage Transformers According To Ieee - ABB TPU Series Instructions For Installation, Use And Maintenance Manual

Current and voltage instrument transformers
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No tap
C U R R E N T A N D VO LTA G E I N S T R U M E N T T R A N S F O R M E R S
12
I N S T R U C T I O N S F O R I N S TA L L AT I O N , U S E A N D M A I N T E N A N C E
1 tap

- Voltage transformers according to IEEE

2 taps
3 taps
Variants of connections of double row terminal
1 measuring winding with
no tap
1 measuring winding with
1 tap
2 measuring winding with
no tap
2 measuring winding with
1 tap
3 measuring
Three cores
x1
x2
y1
y2
z1
x2
x3
y3
z2
z3
x1
y1
y2
z1
x2
x3
y2
y3
z2
x1
x4
y1
y4
z1
x3
x4
x5
y4
y5
x1
x2
y1
y2
y3
x1
x2
H2
x1
x2
x3
H2
x1
x2
y1
y2
H2
x1
x2
y1
y2
x3
y3
H2
x1
y1
z1
x2
y2
z3
H2
x2
z2
x1
x2
x1
z3
x2
z4
x1
z4
z5
z1
z2
z3
PE
PE
PE
PE
PE
Three cores with CD
y2
z2
Ck
y1
z1
PE
x3
y3
z2
z3
Ck
y1
y2
z1
PE
x3
y2
y3
z2
z3
x4
y1
y4
z1
z4
Ck
PE

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