Current transformers - TIN

TI SERIES

TIN

Measuring transformers

The short circuit on terminals or the connection to earth can be achieved by the double fast-on or connecting two wires on the same terminal.

Protection transformers

The C.T. when used as a current generator for protection relays has electrical characteristics which differ from those of the measuring transformer.

In fact, the measuring C.T. is expected to give a saturation of the magnetic circuit with 5P in primary currents, while in the case of protective C.T., it is necessary for the secondary current value to follow the increase in the primary current up to 10-15-20In, so as to guarantee the intervention of the relay in the case of unforeseen breakdown current.

It is important not to load the C.T. with a P performance which is greater than that indicated, so as not to modify the saturation value of the C.T.

P=R∗I2

P = Load on the C.T.

R = Resistance of the relay and resistance of the cables

I = Nominal secondary current of the C.T.

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TIN400A

TIN500A

TIN600A

TIN800A

TIN1000A

TIN1200A

TIN1500A

LBL_INT_E400 A500 A600 A800 A1000 A1200 A1500 A
LBL_INT_S5 A5 A5 A5 A5 A5 A5 A
Class0,5 / 1 / 30,5 / 1 / 30,5 / 1 / 30,5 / 1 / 30,5 / 1 / 30,5 / 1 / 30,5 / 1 / 3
Rating1,5 VA / 3 VA / 10 VA2,5 VA / 5 VA / 15 VA2,5 VA / 5 VA / 17,5 VA3 VA / 7 VA / 18 VA5 VA / 9 VA / 20 VA6 VA / 11 VA / 24 VA8 VA / 17 VA / 30 VA
Frequency50 - 60 Hz50 - 60 Hz50 - 60 Hz50 - 60 Hz50 - 60 Hz50 - 60 Hz50 - 60 Hz
Thermic short circuit current40 IpN 1 seg.40 IpN 1 seg.20 In20 In20 In20 In20 In
Dynamic short circuit current2,5 I th 1 seg.2,5 I th 1 seg.2,5 I th 1 seg.2,5 I th 1 seg.2,5 I th 1 seg.2,5 I th 1 seg.2,5 I th 1 seg.
Permanent overloading120% Icth120% Icth120% Icth120% Icth120% Icth120% Icth120% Icth
InsulationIn air, Class EIn air, Class EIn air, Class EIn air, Class EIn air, Class EIn air, Class EIn air, Class E
Test voltage3kv (50Hz) 1 min.3kv (50Hz) 1 min.3kv (50Hz) 1 min.3kv (50Hz) 1 min.3kv (50Hz) 1 min.3kv (50Hz) 1 min.3kv (50Hz) 1 min.
Protection degreeIP30IP30IP30IP30IP30IP30IP30
Ambient temperature-20ºC a 40ºC-20ºC a 40ºC-20ºC a 40ºC-20ºC a 40ºC-20ºC a 40ºC-20ºC a 40ºC-20ºC a 40ºC
StandardsEN 60044-1EN 60044-1EN 60044-1EN 60044-1EN 60044-1EN 60044-1EN 60044-1
MountingScrewsScrewsScrewsScrewsScrewsScrewsScrews
Weight1,3 kg1,3 kg1,3 kg1,3 kg1,8 kg1,8 kg1,8 kg
Dimensions114x50x145 mm114x50x145 mm114x50x145 mm144x50x185 mm144x50x185 mm144x50x185 mm144x50x185 mm
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