Instrument transformer WA seriesencapsulatedlow-voltagetoroidal
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Characteristics
- Type
- instrument
- Configuration
- encapsulated
- Electrical characteristics
- low-voltage
- Other characteristics
- toroidal, primary, secondary, frequency
- Primary current
Max.: 2,000 A
Min.: 50 A
Description
TWB SA manufactures all types of low voltage instrument transformers, current and voltage, 0.75kV and 1 kV, for indoor as well as for outdoor applications, according to IEC 61869-1. They are window, wound or split core type. They are either encapsulated by a high grade flame self-extinguishing polycarbonate housing or resin impregnated.
Highest voltage for equipment (kV) 072
Rated insulation level (kV) 072/3/-
Rated primary current (A] 50 up to 2000
Rated secondary current (A) 5 or 1
Oyercurrent factor 1,2
Acciracy class 05:1:3
Instriment security factor 5 or 10
Rated burden (VA) 1 up to 20
Rated frequency (Hz) 50:60
Rated thermal short-time current (kA) Ith = 60 x In
Rated dynamic current (kA) Idyn = 2.5 x Ith
Class of insulation E
Maximum altitude of installation (m) up to 1000
Ambient temperature K) - 5 up to + 50
Specifications IEC 61869-1 & 2
Catalogs
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See all of TWB SA‘s catalogs
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.