- 1 -
NECOM
®
TRANSFORMERS
CTN - indoor current instrument transformers
Product presentation
MEDIUM VOLTAGE
Highest voltage for equipment [kV] 7,2 ÷ 24
Power frequency test voltage - 1 min. [kV] 10 ÷ 50
Lightning impulse test voltage - 1,2 / 50 µs [kV] 40 ÷ 125
Rated primary current – Ip [A] 10 ÷ 1000
Rated short-time thermal current - 1 sec. - Ith [kA] 1 ÷ 100
Rated secondary current - Is [A] 1 or 5
Rated output (burden) [VA] 5 ÷ 30
Accuracy class of measuring windings [%] 0,2S ÷ 1
Instrument security factor - FS - 5 or 10
Accuracy class of protection windings - 5P or 10P
Accuracy limit factor - ALF - 5 ÷ 20
Designed and manufactured according to IEC 60044 - 1 & IEC 61869 - 2
Product overview
CTNx.xx.xxx current instrument transformers are casted in
epoxy resin under vacuum and designed for indoor use.
They are used for measuring and protection in medium
voltage equipments, with insulation level of 7,2; 12 or 24
kV.
The transformers are designed with the possibility to be
reconnectible on the primary side.
The number of secondary windings can be 1, 2 or 3,
depending on: accuracy class, rated output and the rated
short-time thermal current.
One terminal of each secondary winding used must be
earthed during the transformer operation, using a M5 screw
on the transformer base plate.
Not used secondary windings have to be short-circuited.
Connections to the secondary terminals will be made into a
terminal box, provided with a sealable transparent cover
and with cable glands.
The transformers are support-type and can operate in any
position.
The transformers mounting is achieved by the fixing base
plate, using four M10 or M12 screws.
Connection to the earth will be made with a M8 screw fixed
on the transformer base plate.
CTNx.xx.xxx instrument transformers will be delivered with
all required screws to connect it in the circuit.
Technical data
Rated current in primary windings can have the value:
10, 15, 20, 25, 30, 50, 75, 100, 150, 200, 250, 300, 400,
500, 600, 800, 1000 A. On request we can provide another
value for primary currents.
Primary reconnectable transformers can be made up to
2 x 300 A.
Rated current in secondary windings can be 1 A or 5 A, or
another values on request.
Accuracy class of measuring windings can be:
0,2S; 0,2; 0,5S; 0,5 or 1 for a value between 25 … 100%
from the rated output and for rated primary current between
(1) 5 ... 120%.
Instrument security factor: FS5 or FS10.
Accuracy class of protection windings can be: 5P or
10P at rated output.
Accuracy limit factor (ALF) can be: 5; 10; 15; 20 or with
another values on request.
It’s not recommended to connect in the transformer
secondary other burdens than those from the specified
range.
Rated frequency: 50 or 60 Hz.
Operating altitude: max. 1000 m.
Operating ambient temperature: - 25 … + 40ºC.
Storage temperature: - 40 … + 40ºC.
Force limits for screws tightening:
M 5 = 2,8 … 3,5 Nm
M 8 = 16 … 20 Nm
M12 = 40 … 50 Nm
- 2 -
NECOM
®
TRANSFORMERS
Terminal markings of current instrument transformers
Code designation
Type
CTN
Ith/Idyn
[kA]
Ratio
[A]
Burden
[VA] Accuracy FS/ALF
1.A1.350 6,3/16 10/5 10 0,5(5P) FS5(10)
1.A1.350 6,3/16 10//5/5 10/10 0,5/5P FS5/10
1.A1.350 12,5/31,5 10/5 10 0,5(5P) FS5(10)
1.A1.350 12,5/31,5 10//5/5 10/10 0,5/5P FS5/10
1.A1.350 6,3/16 15/5 10 0,5(5P) FS5(10)
1.A1.350 6,3/16 15//5/5 10/10 0,5/5P FS5/10
1.A1.350 12,5/31,5 15/5 10 0,5(5P) FS5(10)
1.A1.450 12,5/31,5 15//5/5 10/10 0,5/5P FS5/10
1.A1.350 16/40 15/5 10 0,5(5P) FS5(10)
1.A1.450 16/40 15//5/5 10/10 0,5/5P FS5/10
1.A1.350 6,3/16 20/5 15 0,5(5P) FS5(10)
1.A1.350 6,3/16 20//5/5 15/15 0,5/5P FS5/10
1.A1.350 12,5/31,5 20/5 15 0,5(5P) FS5(10)
1.A1.350 12,5/31,5 20//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 20/5 15 0,5(5P) FS5(10)
1.A1.450 16/40 20//5/5 15/15 0,5/5P FS5/10
1.A1.350 6,3/16 25/5 15 0,5(5P) FS5(10)
1.A1.350 6,3/16 25//5/5 15/15 0,5/5P FS5/10
1.A1.350 12,5/31,5 25/5 15 0,5(5P) FS5(10)
1.A1.350 12,5/31,5 25//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 25/5 15 0,5(5P) FS5(10)
1.A1.350 16/40 25//5/5 15/15 0,5/5P FS5/10
P1 P2
S1 S2
P1 P2
S1 S2 S3
1S1 1S2 2S1 2S2
P1 P2 P1 P2
1S1 1S2 2S1 2S2 3S1 3S2
P1 P2
1S1 1S2 1S3 2S1 2S2 2S3
P1 C1 C2 P2
1S1 1S2 2S1 2S2
(5) (6)
(1) (2)
(4)
(3)
CTN x xx xxx
Base plate type (dimension)
Primary terminal type (A1, A2, A3, A4, A5, B1, B2 and C1)
The number of primary windings (1 or 2)
NECOM Current instrument Transformer
- 3 -
NECOM
®
TRANSFORMERS
Type
CTN
Ith/Idyn
[kA]
Ratio
[A]
Burden
[VA] Accuracy FS/ALF
1.A1.350 25/63 25/5 15 0,5(5P) FS5(10)
1.A1.450 25/63 25//5/5 15/15 0,5/5P FS5/10
1.A1.350 6,3/16 30/5 15 0,5(5P) FS5(10)
1.A1.350 6,3/16 30//5/5 15/15 0,5/5P FS5/10
1.A1.350 12,5/31,5 30/5 15 0,5(5P) FS5(10)
1.A1.350 12,5/31,5 30//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 30/5 15 0,5(5P) FS5(10)
1.A1.350 16/40 30//5/5 15/15 0,5/5P FS5/10
1.A1.350 25/63 30/5 15 0,5(5P) FS5(10)
1.A1.350 25/63 30//5/5 15/15 0,5/5P FS5/10
1.A1.350 6,3/16 50/5 15 0,5(5P) FS5(10)
1.A1.350 6,3/16 50//5/5 15/15 0,5/5P FS5/10
1.A1.350 12,5/31,5 50/5 15 0,5(5P) FS5(10)
1.A1.350 12,5/31,5 50//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 50/5 15 0,5(5P) FS5(10)
1.A1.350 16/40 50//5/5 15/15 0,5/5P FS5/10
1.A1.350 25/63 50/5 15 0,5(5P) FS5(10)
1.A1.350 25/63 50//5/5 15/15 0,5/5P FS5/10
1.A1.350 31,5/80 50/5 15 0,5(5P) FS5(10)
1.A1.350 31,5/80 50//5/5 15/15 0,5/5P FS5/10
1.A1.350 12,5/31,5 75/5 15 0,5(5P) FS5(10)
1.A1.350 12,5/31,5 75//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 75/5 15 0,5(5P) FS5(10)
1.A1.350 16/40 75//5/5 15/15 0,5/5P FS5/10
1.A1.350 25/63 75/5 15 0,5(5P) FS5(10)
1.A1.350 25/63 75//5/5 15/15 0,5/5P FS5/10
1.A1.350 31,5/80 75/5 15 0,5(5P) FS5(10)
1.A1.350 31,5/80 75//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 100/5 15 0,5(5P) FS5(10)
1.A1.350 16/40 100//5/5 15/15 0,5/5P FS5/10
1.A1.350 25/63 100/5 15 0,5(5P) FS5(10)
1.A1.350 25/63 100//5/5 15/15 0,5/5P FS5/10
1.A1.350 31,5/80 100/5 15 0,5(5P) FS5(10)
1.A1.350 31,5/80 100//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 150/5 15 0,5(5P) FS5(10)
1.A1.350 16/40 150//5/5 15/15 0,5/5P FS5/10
1.A1.350 25/63 150/5 15 0,5(5P) FS5(10)
1.A1.350 25/63 150//5/5 15/15 0,5/5P FS5/10
1.A1.350 31,5/80 150/5 15 0,5(5P) FS5(10)
1.A1.350 31,5/80 150//5/5 15/15 0,5/5P FS5/10
1.A1.350 16/40 200/5 15 0,5(5P) FS5(10)
1.A1.350 16/40 200//5/5 15/15 0,5/5P FS5/10
1.A1.350 25/63 200/5 15 0,5(5P) FS5(10)
1.A1.350 25/63 200//5/5 15/15 0,5/5P FS5/10
1.A1.350 31,5/80 200/5 15 0,5(5P) FS5(10)
1.A1.350 31,5/80 200//5/5 15/15 0,5/5P FS5/10
1.A1.350 40/100 200/5 15 0,5(5P) FS5(10)
- 4 -
NECOM
®
TRANSFORMERS
Type
CTN
Ith/Idyn
[kA]
Ratio
[A]
Burden
[VA] Accuracy FS/ALF
1.A1.350 40/100 200//5/5 15/15 0,5/5P FS5/10
1.A1.350 25/63 250/5 15 0,5(5P) FS5(10)
1.A1.350 25/63 250//5/5 15/15 0,5/5P FS5/10
1.A1.350 31,5/80 250/5 15 0,5(5P) FS5(10)
1.A1.350 31,5/80 250//5/5 15/15 0,5/5P FS5/10
1.A1.350 40/100 250/5 15 0,5(5P) FS5(10)
1.A1.350 40/100 250//5/5 15/15 0,5/5P FS5/10
1.A1.350 31,5/80 300/5 15 0,5(5P) FS5(10)
1.A1.350 31,5/80 300//5/5 15/15 0,5/5P FS5/10
1.A1.350 40/100 300/5 15 0,5(5P) FS5(10)
1.A1.350 40/100 300//5/5 15/15 0,5/5P FS5/10
1.A1.350 50/125 300/5 15 0,5(5P) FS5(10)
1.A1.350 50/125 300//5/5 15/15 0,5/5P FS5/10
1.A2.350 40/100 400/5 15 0,5(5P) FS5(10)
1.A2.350 40/100 400//5/5 15/15 0,5/5P FS5/10
1.A2.350 50/125 400/5 15 0,5(5P) FS5(10)
1.A2.350 50/125 400//5/5 15/15 0,5/5P FS5/10
1.A2.350 40/100 500/5 15 0,5(5P) FS5(10)
1.A2.350 40/100 500//5/5 15/15 0,5/5P FS5/10
1.A2.350 50/125 500/5 15 0,5(5P) FS5(10)
1.A2.350 50/125 500//5/5 15/15 0,5/5P FS5/10
1.A2.350 40/100 600/5 15 0,5(5P) FS5(10)
1.A2.350 40/100 600//5/5 15/15 0,5/5P FS5/10
1.A2.350 50/125 600/5 15 0,5(5P) FS5(10)
1.A2.350 50/125 600//5/5 15/15 0,5/5P FS5/10
1.A3.350 40/100 800/5 15 0,5(5P) FS5(10)
1.A3.350 40/100 800//5/5 15/15 0,5/5P FS5/10
1.A3.350 50/125 800/5 15 0,5(5P) FS5(10)
1.A3.350 50/125 800//5/5 15/15 0,5/5P FS5/10
1.A3.350 50/125 1000/5 15 0,5(5P) FS5(10)
1.A3.350 50/125 1000//5/5 15/15 0,5/5P FS5/10
1.A3.350 63/160 1000/5 15 0,5(5P) FS5(10)
1.A3.350 63/160 1000//5/5 15/15 0,5/5P FS5/10
Notes:
1. The transformers (CTN1) 100 // 5 / 5A with Ith/Idyn = 16 / 40 kA can be ordered reconnectable on the primary side
(CTN2). In this case, the transformer 2 x 100 // 5 / 5A with Ith/Idyn = 16 / 40 kA will became 200 // 5 / 5A with Ith/Idyn =
32 / 80 kA.
2. For another values of rated output (burden), transformer ratio, Ith / Idyn, accuracy class (0,2S; 0,2; 0,5S; 1), FS, ALF, the
price and overall dimensions will be communicated on request.
- 5 -
NECOM
®
TRANSFORMERS
- 6 -
NECOM
®
TRANSFORMERS
- 7 -
NECOM
®
TRANSFORMERS
VTN1 - indoor voltage instrument transformers (single pole)
Product presentation
MEDIUM VOLTAGE
Highest voltage for equipment [kV] 7,2 ÷ 24
Power frequency test voltage - 1 min. [kV] 10 ÷ 50
Lightning impulse test voltage - 1,2 / 50 µs [kV] 40 ÷ 125
Rated primary voltage [kV] max. 20/√3
Rated secondary voltage of measuring windings [V] 100/√3; 110/√3
Rated secondary voltage of protection windings [V] 100/3; 110/3
Overvoltage factor - 1,9*Un / 8 hrs.
Accuracy class of measuring windings [%] 0,2; 0,5; 1
Accuracy class of protection windings [Hz] 3P or 6P
Rated frequency - 50 ÷ 60
Designed and manufactured according to IEC 60044-2 & IEC 61869 - 3
Product Overview
VTN1.xxx.xx.xx.xx voltage instrument transformers are
casted in epoxy resin under vacuum and designed for
indoor use. They are used for measuring and protection in
medium voltage equipments, with insulation level of 7,2;
12 or 24 kV.
The number of secondary windings can be 1 or 2,
depending on rated output (burden) and accuracy class.
The "N" terminal of the primary winding and “n” and “dn”
terminals of the secondary windings must be earthed.
Connections to the secondary terminals will be made into
a terminal box, provided with a sealable transparent cover
and with cable glands.
The transformers are support-type and can operate in any
position.
The transformers mounting is achieved by the fixing base
plate, using four M10 or M12 screws.
Connection to the earth will be made with a M8 screw
fixed on the transformer base plate.
VTN1.xxx.xx.xx.xx instrument transformers will be
delivered with all required screws to connect it in the
circuit.
Technical data
Rated voltage in primary winding can have the value 6/√3,
10/√3 or 20/√3 kV. On request we can provide another
values for primary voltage.
Rated voltage in secondary windings can be 100/√3,
110/√3 V for measuring and 100:3, 110:3 V for protection,
or another values on request.
Rated output (burden) for both secondary windings
(summed) can be max. 170 VA or 200 VA.
Accuracy class of measuring windings can be: 0,2; 0,5;
or 1 for a value between 25 … 100% from the rated output
and for rated primary voltage between 80...120%.
Accuracy class of protection windings can be: 3P or 6P
at rated output.
Operating altitude: max. 1000 m.
Operating ambient temperature: - 25 … + 40ºC.
Storage temperature: - 40 … + 40ºC.
Force limits for screws tightening:
M 5 = 2,8 … 3,5 Nm
M 8 = 16 … 20 Nm
M10 = 20 … 25 Nm
- 8 -
NECOM
®
TRANSFORMERS
Terminal markings of voltage instrument transformers
Code designation
Type
VTN1
U primary
[kV]
U secondary
[V] Accuracy
Burden
[VA]
Max. weight
[kg]
30 / 30
50 / 50 SBK.150.78.50.50 6 / √3 100 / √3 100 / 3
0,5 / 3P
50 / 120
36
30 / 30
50 / 50 SBK.150.78.50.50 10 / √3 100 / √3 100 / 3
0,5 / 3P
50 / 120
38
30 / 30
50 / 50 SBK.150.78.50.50 20 / √3 100 / √3 100 / 3
0,5 / 3P
50 / 120
38
Notes:
1. Voltage instrument transformers type VTN1.SBK.150.78.50.50 can be made with 1 or 2 secondary windings, for the
following rated output (burdens):
- max. 10 VA for accuracy cl. 0,2 and max. 10 VA for accuracy cl. 3P (or max. 30 VA for accuracy cl. 6P);
- max. 50 VA for accuracy cl. 0,5 and max. 120 VA for accuracy cl. 3P;
- max. 70 VA for accuracy cl. 0,5 and max. 70 VA for accuracy cl. 0,5.
2. For max. 75 VA accuracy cl. 0,5 and max. 125 VA accuracy cl. 6P, the transformers will be manufactured on
VTN1.SBK.152.85.50.50 structure.
3. For another values of rated output (burden), transformer ratio, accuracy class (0,2; 1), the price and overall dimensions
will be comunicated on request.
A N
a n
(1)
A N A N
1a 1n 2a 2n
(2) (3)
a n da dn
Single pole ( + “S” extension for fuse – VTN1S )
NECOM Voltage instrument Transformer
VTN SBK xxx xx xx 1
Internal Code
xx
- 9 -
NECOM
®
TRANSFORMERS
- 10 -
NECOM
®
TRANSFORMERS
- 11 -
NECOM
®
TRANSFORMERS
VTN2 - Indoor voltage instrument transformers (double pole)
Product presentation
MEDIUM VOLTAGE
Highest voltage for equipment [kV] 7,2 ÷ 24
Power frequency test voltage - 1 min. [kV] 10 ÷ 50
Lightning impulse test voltage - 1,2 / 50 µs [kV] 40 ÷ 125
Rated primary voltage [kV] max. 20
Rated secondary voltage of measuring windings [V] 100; 110
Rated secondary voltage of protection windings [V] 100; 110
Overvoltage factor - 1,2*Un / cont.
Accuracy class of measuring windings [cl.] 0,2; 0,5; 1
Accuracy class of protection windings [cl.] 3P or 6P
Rated frequency [Hz] 50 ÷ 60
Designed and manufactured according to IEC 60044-2 & IEC 61869 - 3
Product Overview
VTN2.xxx.xx.xx.xx voltage instrument transformers are
casted in epoxy resin under vacuum and designed for
indoor use. They are used for measuring and protection in
medium voltage equipments, with insulation level of 7,2;
12 or 24 kV.
The number of secondary windings can be 1, 2 or 3,
depending on rated output (burden) and accuracy class.
Primary windings are isolated from the earth.
Connections to the secondary terminals will be made into
a terminal box, provided with a sealable transparent cover
and with cable glands.
The transformers are support-type and can operate in any
position.
The transformers mounting is achieved by the fixing base
plate, using four M10 or M12 screws.
Connection to the earth will be made with a M8 screw
fixed on the transformer base plate.
VTN2.xxx.xx.xx.xx instrument transformers will be
delivered with all required screws to connect it in the
circuit.
Technical data
Rated voltage in primary winding can have the value 6, 10
or 20 kV. On request we can provide another values for
primary voltage.
Rated voltage in secondary windings can be 100; 110 V for
measuring and 100, 110 V for protection, or another values
on request.
Rated output (burden) for both secondary windings
(summed) can be max. 100 VA.
Accuracy class of measuring windings can be: 0,2; 0,5;
or 1 for a value between 25 … 100% from the rated output
and for rated primary voltage between 80 ...120%.
Accuracy class of protection windings can be: 3P or 6P
at rated output.
Operating altitude: max. 1000 m.
Operating ambient temperature: - 25 … + 40ºC.
Storage temperature: - 40 … + 40ºC.
Force limits for screws tightening:
M 5 = 2,8 … 3,5 Nm
M 8 = 16 … 20 Nm
M10 = 20 … 25 Nm
- 12 -
NECOM
®
TRANSFORMERS
Terminal markings of voltage instrument transformers
Code designation
Type
VTN2
U primary
[kV]
U secondary
[V] Accuracy
Burden
[VA]
Max. weight
[kg]
15 / 15
30 / 30 SBK.152.85.50.50 6 100 100
0,5 / 3P
50 / 50
40
15 / 15
30 / 30 SBK.152.85.50.50 10 100 100
0,5 / 3P
50 / 50
40
15 / 15
30 / 30 SBK.152.85.50.50 20 100 100
0,5 / 3P
50 / 50
40
Notes:
4. Voltage instrument transformers type VTN2.SBK.152.85.50.50 can be made with 1, 2 or 3 secondary windings, for the
following rated output (burdens):
- max. 10 VA for accuracy cl. 0,2 and max. 50 VA for accuracy cl. 3P;
- max. 50 VA for accuracy cl. 0,5 and max. 50 VA for accuracy cl. 3P.
5. For another values of rated output (burden), transformer ratio, accuracy class (0,2; 1), the price and overall dimensions
will be comunicated on request.
For any other information, please contact us!
A B
a b
(1)
A B A B
1a 1b 2a 2b
(2) (3)
a b da dn
Double pole ( + “S” extension for fuse – VTN2S )
NECOM Voltage instrument Transformer
VTN SBK xxx xx xx 2
Internal Code
xx
- 13 -
NECOM
®
TRANSFORMERS
- 14 -
NECOM
®
TRANSFORMERS
Instrument transformers laboratory
Our metrological laboratory has the facilities and expertise to perform routine tests and check the results for voltage and current instrument transformers in accordance with the actual applicable standards, as following: Current instrument transformers for medium and low voltage, indoor and outdoor type ( according to: IEC 60044 - 1 & IEC 61869 – 2 ). - primary current up to 4000 A, secondary current 5 or 1 A, accuracy class: 0,2S; 0,2; 0,5S; 0,5 for one or more measurement intervals. Voltage instrument transformers for medium and low voltage, indoor and outdoor type (according to IEC 60044-2 & IEC 61869 – 3 ). - primary voltage up to 24 kV, secondary voltage: 100√3; 110√3; 100; 110 V, accuracy class: 0,2; 0,5 or 1 % for one or more measurement intervals. Each instrument transformer is subjected to all routine tests including partial discharge test, according to applicable standards and customer specifications on request. NECOM instrument transformers are type tested by approved laboratories for design validation and fault withstand capabilities. All these tests allow us to ensure the high quality of transformers. The laboratory is accredited by Romanian Bureau of Legal Metrology. All equipments and standards used, has beeen calibrated by accredited laboratories ( PTB, METAS, INM, EPRO ), thereby traceability of measurment results is ensured. The testing of instrument transformers service is also available to external companies.
- 15 -
NECOM
®
TRANSFORMERS
TSN 2 - indoor auxiliary power transformers
Product presentation
MEDIUM VOLTAGE
Highest voltage for equipment [kV] 7,2 ÷ 24
Power frequency test voltage - 1 min. [kV] 10 ÷ 50
Lightning impulse test voltage - 1,2 / 50 µs [kV] 40 ÷ 125
Rated primary voltage [kV] max. 20
Rated secondary voltage [V] 100; 220; 230
Short-circuit voltage - Uk [%] max. 10
Rated frequency [Hz] 50 ÷ 60
Insulation class - B
Degree of protection - IP 00
Cooling type - AN
Designed and manufactured according to IEC 60076 - 11
Product overview
TSN2.xxx.xx.xx.xx transformers for auxiliary services are
casted in epoxy resin under vacuum and designed for
indoor use, to make the transition from medium voltage to
low voltage, as auxiliary power supply for many
consumers.
They are provided with only one secondary winding.
The primary winding is isolated from the earth.
At request, these type of transformers can be made in
monopolar version. In this case, B terminal of primary
winding becomes N and must be earthed.
Connections to the secondary terminals will be made with
two M10 screws.
The transformers are support-type and can operate in any
position, except TSN2.SBK.184.90.90.R type that must be
placed only vertically.
The transformers mounting is achieved by the fixing base
plate, using four M10 or M12 screws.
Connection to the earth will be made with a M8 screw
fixed on the transformer base plate.
Technical data
Rated voltage in primary winding can have the value 6, 10
or 20 kV. If is asking for monopolar version, the rated
primary voltage have the value: 6/√3, 10/√3 or 20/√3 kV.
On request we can provide another values for primary
voltage.
Rated voltage in secondary windings can be: 100 V, 220 V,
230 V or another values on request.
It is mandatory to use protective devices, both on the
primary and on the secondary syde of the transformer.
Operating altitude: max. 1000 m.
Operating ambient temperature: - 25 … + 40ºC.
Storage temperature: - 40 … + 40ºC.
Force limits for screws tightening:
- M 8 = 16 … 20 Nm
- M10 = 20 … 25 Nm
Terminal markings
TSN 2
A B a b
Primary
Secondary
- 16 -
NECOM
®
TRANSFORMERS
Code designation
Type
TSN2
Primary voltage
[kV]
Secondary voltage
[V]
Power
[VA]
Max. weight
[kg]
6 100 / 220 / 230 1000
10 100 / 220 / 230 800 SBK.150.78.50.50
20 100 / 220 / 230 600
36
6 100 / 220 / 230 1500
10 100 / 220 / 230 1200 SBK.152.85.50.50
20 100 / 220 / 230 1000
40
6 100 / 220 / 230 2000
10 100 / 220 / 230 2000 SBK.172.88.55.55
20 100 / 220 / 230 1500
58
6 100 / 220 / 230 4000
10 100 / 220 / 230 4000
20 100 / 220 / 230 4000 SBK.184.90.90-R
20 100 / 220 / 230 2500
80
Notes:
1. On request we can made the transformer in single pole version (TSN1). 2. For another values of the rated power or rated primary voltage, the prices will be communicated on request.
Double pole ( “1” assigned for single pole type )
NECOM Auxiliary power transformer
TSN SBK xxx xx xx 2
Internal code
xx
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