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Instrument transformer WG series
encapsulatedlow-voltage

instrument transformer
instrument transformer
instrument transformer
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Characteristics

Type
instrument
Configuration
encapsulated
Electrical characteristics
low-voltage
Current

Min.: 150 A

1 A, 5 A

Max.: 400 A

Electric power

Min.: 0.005 kVA (0.0068 hp)

Max.: 0.03 kVA (0.0408 hp)

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) 0,72 Rated insulation level (kV) 0.72/3/- Rated primary current (A) 150 ip to 400 Rated secondary current (A) 5 or 1 Overcurrent factor 1,2 Accuracy class 0.5S:0.5;1;3 Instrument security factor 5 or 10 Rated burden (VA) 5 up to 30 Rated frequency (Hz) 50:60 Rated thermal short-time current (kA) Ith = 60 x In Rated dynamic current (kA) Idyn ■ 2 5x Ith Class of insulation E Maximum altitude of installation (m) ip to 1000 Ambient temperatire HI) - 5 up to + 50 Weight (kg) 1.10 up to 125 Specifications IEC 61869-1 & 2

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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.