AMD – Current transformer above 2000 amps

Instrument current
Transformers, indoor,
Ring Type ,
Cast-Resin Insulated
Technical data
Type
 
AMD12
AMDL12
AMD24
AMDL24
Highest voltage for equipment
kV
3.6 , 7.2 , 12
24
24
Power frequency withstand test voltage, 1 minute
kV
10 ,  20  , 28
50
50
Lightning impulse test voltage (1.2/50 m s full wave)
kV
40 ,  60  , 75
125
125
Rated frequency
Hz
50/60
50/60
50/60
50/60
Max. Rated primary current
A
4000
4000
4000
4000
Primary reconnection« 1:2
A
——
——
——
——
Secondary current
A
5 or 1
5 or 1
5 or 1
5 or 1
Max. rated continuous thermal current ´ In
A
1.2
1.2
1.2
1.2
Rated short time thermal current Ith in1 sec.(100-1000) ´ In
Max.kA
60
60
60
60
Rated dynamic current Idyn = 2.5 ´ Ith
Max.kA
120
120
120
120
Max. number of cores (Depends on burden , accuracy class , Ith value)
2
3
2
3
Accuracy class measuring / protection
0.2-0.5-1/5P -10P
Rated output (measuring / protection)
5-30VA/1-30 VA
Instrument security factor (measuring; FS5,FS10)/ Accuracy limit factor (protection; P5-P30)
On Request:
Constructions with capacitive layer
Category:

Description

AMD12-AMDL12-AMD24- AMDL24

AMD Series : suitable for I primary ≥ 2000 A

Type
AMD12
AMD24
AMDL12
AMDL24
e1
210
280
L
292
362
b1
196
266
b2
178
178
h
295
295
d
12
12
d1
260
260
d2
115
112

Dimensions in mm