Products
-> Power
Distribution Transformers -> Cast Resin Instrument
Transformers
In support of the Cast Resin Power Distribution transformers
we supply Cast Resin Instrument Transformers for the
monitoring of medium voltage systems manufactured by
TESAR SRL
Voltage Transformers
Tesar offer a range of voltage transformers to convert
the medium system voltage to a low voltage for metering
and protection purposes manufactured and tested in accordance
with IEC 60044-2.
Phase to Phase Transformers
Type |
Voltage
System
|
Standard
secondary voltage (1)
|
Standard burden /
Accuracy Class (1) |
VCA11
|
12 kV
|
100 or 110
|
25 VA / 0,2
50 VA / 0,5
100 VA / 1
50 VA / 3P |
VCB11
|
24 kV
|
100 or 110
|
VCC11
|
36 kV
|
100 or 110
|
VCAD1
|
12 kV
|
100 or 110
|
VCBD1 |
24 kV |
100 or 110 |
(1) Other values on request
All units can be supplied for either single or dual
primary voltage and with a second output on request
Phase to Earth Transformers
Type
|
Voltage System
|
Standard secondary voltage
(1)
|
Standard burden / Accuracy
Class (1) |
VFA11
|
12 kV
|
100/√3 - 100/3 or 110/√3 -
110/3
|
25 VA / 0,2 -
50 VA / 3P
50 VA / 0,5 - 50 VA / 3P
100 VA / 1 - 50 VA / 3P
50 VA / 3P - 50 VA / 3P |
VFB11
|
24 kV
|
100/√3 - 100/3 or 110/√3 -
110/3
|
VFC11
|
36 kV
|
100/√3 - 100/3 or 110/√3 -
110/3
|
VFAD1
|
12 kV
|
100/√3 - 100/3 or 110/√3 -
110/3
|
VFBD1
|
24 kV
|
100/√3 - 100/3 or 110/√3 -
110/3
|
VFTS1
|
12 kV
|
100/√3 - 100/3 or 110/√3 -
110/3
|
VFBS1
|
24 kV
|
100/√3 - 100/3 or 110/√3 -
110/3
|
VFCS1 |
36 kV |
100/√3 - 100/3 or 110/√3 -
110/3 |
(1) Other values on request
All units can be supplied for either single or dual
primary voltage and with a third secondary on request
Units type “11” are dimensioned to CEI-UNEL
21007
Units type “D1” are dimensioned according
to DIN 42 600 TIEL 9
Units type “S1” are complete with a high
voltage fuse holder
Current Transformers
Tesar manufacture medium voltage current transformers
for metering and protection purposes manufactured and
tested in accordance with IEC 60044-1.
Type
|
System Voltage
|
Max Primary Current
|
Secondary Current
|
Max No of Secondaries
|
Standard burden /
Accuracy Class (1) |
AA111
|
12 kV
|
600A
|
5A
|
1
|
20 VA / 0,5
or
10 VA / 5P10 |
AA121
|
12 kV
|
600A
|
5A |
2
|
AA131
|
12 kV
|
1200A
|
5A |
2
|
AA141
|
12 kV
|
2500A
|
5A |
3
|
AB111
|
24 kV
|
600A
|
5A |
1
|
AB121
|
24 kV
|
600A
|
5A |
2
|
AB131
|
24 kV
|
1000A
|
5A |
2
|
AB161
|
24 kV
|
2500A
|
5A |
3
|
AC121
|
36 kV
|
2500A
|
5A |
3
|
ABM11
|
24 kV
|
1250A
|
5A |
3
|
ABM22
|
24 kV
|
1250A
|
5A |
3
|
AAD11 (2)
|
12 kV
|
2500A
|
5A |
3
|
ABD11 (2) |
24 kV |
2500A |
5A |
3 |
(1) Other values of burdens and accuracy class on request
(2) Option for protective walls around terminals available
On special request 1A output current available
Units type “1X1” are dimensioned to CEI-UNEL
21009
Units type “D11” are dimensioned to DIN
42 600 TEIL 8
|
