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Current transformer AK 12
instrumentcast resinprotection

current transformer
current transformer
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Characteristics

Type
current, instrument
Configuration
cast resin
Applications
protection, for indoor service
Electrical characteristics
medium-voltage
Other characteristics
primary, secondary
Current

Min.: 5 A

Max.: 600 A

Description

We produce supporting type current transformers for indoor installation. They contain up to five cores for revenue metering and protection purposes, constructed from high quality siliceousor nickel steel laminations. All active parts are altogether impregnated with cycloaliphatic outdoor resin. In case 1:2 reconnection is requested, thiscan be achieved either by mounting reconnection bars to the primary terminals, or by an intermediate terminal at the secondary coil. Each terminal of the secondary coil can be grounded individually directly to the metal base through a bolt. These types aremaintenance free,and with respect to their main dimensions many types correspond to the German standards DIN 42600. Highest voltage for equipmet (kV) - 12 Rated insulation level (kV) - 12/28/75 Rated primary current (A) - 5 up to 600 Rated secondary current (A) - 5or 1 Accuracy class of measuring core - 0.1; 0.2S: 0.2:0.5S: 0.5 ¡1:3 Instrunent security factor - 5 or 10 Rated burden of measuring core (VA) - 1.25 up to 30 Accuracy class of protection core - 5P: 10P Accuracy limit factor - 5 or 10 or 15 or 20 Rated burden of protection core (VA) - 1.25 up to 30 Number of cores - up to 2 Rated frequency (Hz) - 162/3:50:60 Rated thermal short-time current (kA) - lth= 100 x In (max 120)/1 s Rated dynamic current (kA) - ldyn = 2.5 x1th Class of insulation - E Weight (kg) - 15 Cantilever strength (N) - >5000 Maximum altitude of installation (m) - up to 1000 Ambient temperature PC] - - 5 up to ♦ 50 Specifications - IEC 61869-1 & 2: DIN ¿2600 Capacitive voltage divider - available upon request Drawing Nr. - 2110/12
*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.