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  4. Voltage range 36-42 kV
  5. Current transformer TOLU-42

Current transformer TOLU-42

The TOLU-42 transformer is designed to operate with alternating current at a frequency of 50 Hz with a voltage of up to 42 kV. It can be installed in any position. It is manufactured in climatic version "U" of placement category 2.1. The production meets the requirements of DSTU 15150-69. It is designed to convert the parameters of the input signal to values suitable for taking measurements using measuring equipment. It can also be used to connect automation or control devices.

The durability (50 years of flawless operation is guaranteed) is ensured by the properties of the innovative material from which the core is made. It is a nanocrystalline alloy. Its advantage is its immunity to magnetization caused by currents and leading to distortion of signal parameters. You can buy a transformer TOLU-42 at an affordable price by contacting our managers by phone or through the feedback form.

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Type examination certificate (Module B) No. UA.TR.001 150-19 Rev.2 reference number 29/3/B/12/016 20. Complies with DSTU EN 61869-2:2017.

Technical specifications

Parameter nameValue
Maximum operating voltage, kV42
Rated primary current, A5, 10, 15, 20, 30, 40, 50, 75, 100, 150, 200, 300, 400, 500, 600, 800, 1000, 1500, 2000, 2500, 3000
Rated secondary current, A1;5
Rated frequency, Hz50
Number of secondary windings2, 3, 4, 5
Accuracy class of the secondary winding: - for measurement; - for protection;0,2S; 0,5; 0,5S;0,5S+ / 5P;10P
Rated secondary load at cos φ = 0.8, VxA winding: - for measurements; - for protection;10 / 15
Rated primary current, A51015203040507510015020030040050060080010001500200025003000
Rated short-term thermal resistance current, Ith, kA0,61,31,32,63,33,33,77,77,414,414,428,828,836368686108108108108
dynamic stability Idyn, kA1,63,33,36,58,38,39,318,518,5363672729090215215270270270270
Safety factor of the device, FS, not more than333333333333334555555
Ultimate accuracy factor, ALF, not less than **7777788787878899910131313

It is possible to supply a cover to protect the secondary winding terminals from unauthorized access (sealing) as part of the transformer package - if specified in the supply contract.

* Transformers with rated secondary load up to 30 V-A can be supplied (please specify when ordering).

** Transformers with a maximum accuracy factor of at least 10 can be supplied (specify when ordering).

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