MEDIUM VOLTAGE INSTRUMENT TRANSFORMERS

Metallized voltage transformers with silicon or resin insulator

BBY1 BBY2 VE6

This range can be split into 2 parts:

  • 1 insulated pole VTs: BBY1, BBY2 and YE9A
  • 2 insulated poles VTs: VE6, VE7 and VE9.

You can find the different models for each requirement in the 2 following charts (click on the name to see the drawing):

1 INSULATED POLE - PHASE to GROUND

insulation
kV
BIL
kV
 MAXIMUM primary voltage
V
Type MAXIMUM possible burden (VA) Thermal burden (VA)
1 secondary 2 secondaries
class 0.2 class 0.5 class 1.0 cl. 0.5
+
cl.0.5
cl. 1.0
+
cl.1.0
12 75 11000/V3 BBY1 20 100 200 50 + 50 100 + 100 400
BBY2 50
300 600 150 + 150 300 + 300 700
24 125 22000/V3 BBY1 20 100 200 40 + 40 80 + 80 400
BBY2 50
300 600 150 + 150 300 + 300 700
36
170 33000/V3 BBY2 50
250 500 100 + 100 200 + 200 700
YE9A 50 250 500 150 + 150 300 + 300 700
 52 250
 44000/V3
 BBY2 50
150
300
60 + 60
120 + 120
500
YE9A
50 200
400
100 + 100
200 + 200
700

Secondary voltage : 110/V3 or 100/V3 V, other values on request.

Voltage factor is 1.2Un permanent and 1.9Un 30sec. for all transformers. We can provide 1.9Un 8 hours on request.

Also, an open delta winding can be added to some models on request.

 

2 INSULTED POLES - PHASE to PHASE

insulation
kV
BIL
kV
MAXIMUM primary voltage
V
Type MAXIMUM possible burden (VA)  Thermal burden (VA)
1 secondary 2 secondaries
class  0.2 class  0.5 class  1.0 cl. 0.5
+
cl.0.5
cl. 1.0
+
cl.1.0
12 75 11000 VE6 20 150 300

400
VE7 30
250 500 100 + 100 200 + 200 800
24 125 22000 VE6 20 150 300

400
VE7 30
250 500 100 + 100 200 + 200 800
36
170 33000 VE7 30
250 500 80 + 80 200 + 200 800
 52 250
 44000
 VE9 20
150
300
50 + 50
100 + 100
1000

Secondary voltage: 110 or 100 V, other values on request.

Voltage factor is 1.2Un permanent for all models.