VMB-VMD – Voltage Transformer

Instrument voltage
transformers, indoor,
Cast-Resin Insulated
On Request:
Secondary change over provides dual primary
rated voltage for instance (20000-11000/100V).

Technical data

Type
 
VMB12-1
VMB24-1
VMB12-2
VMB24-2
Highest voltage for equipment
kV
12
24
12
24
Power frequency withstand test voltage, 1 minute
kV
28
50
28
50
Lightning impulse test voltage (1.2/50μs full wave)
kV
75
125
75
125
Rated frequency
Hz
50/60
50/60
50/60
50/60
Max. rated primary voltage
kV
12/√3
24/√3
12
24
Secondary thermal limit current for measuring winding
A
7
7
4
4
Rated voltage factor /8h
1.9
1.9
Secondary thermal limit current for Earth – fault winding
A
4
4
Secondary voltage
V
100/√3; 110/√3; 220/√3
100;110;220
Max number of cores
3
3
2
2
Accuracy class measuring / protection
0.2-0.5-1/3P -6P
Rated output
15-100 VA

Category:

Description

Type
VMB12-1
VMB24-1
VMD12/24-2
VMB12/24-2
e1
280
280
e2
140
165
e3
210
e4
58
L
362
362
b1
148
148
b2
178
178
h
250
250/280
250
h1
35
d
14
14

Dimensions in mm

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