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

Current transformer TOLU-36

The TOLU-42-1 transformer is made of modern materials. Its advantage is a core made of nanocrystalline alloy. The current passing through the winding can cause magnetization. This, in turn, can distort the signal at the output of the device. But the core made of this material remains insensitive to such effects. This allows you to capture correct information about the parameters of the signal at the input. The transformer also allows you to include automation and control devices in the network. You can buy it at an affordable price in our store.

It is capable of operating with AC voltage up to 42 kV. The current frequency is 50 Hz. Current transformers made in the climatic version "U" of the placement category 2 are installed in the switchgear. They can be installed in any position. The use of innovative materials ensures long-term (50 years) correct operation of the transformer.

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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, 6
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 measurement; - for protection;10 / 15
Rated primary voltage, A51015203040507510015020030040050060080010001500200025003000
Rated short-term thermal resistance current, Ith, kA0,61,31,32,63,33,33,77,77,414,414,428,828,836368686108108108108
Rated current strength of 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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