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Main specifications
All specifications
Heat resistance class of insulating material:
Е
Nominal frequency, Hz:
50
Nominal winding accuracy class for measurements:
0,2; 0,2S; 0,5; 0,5S; 1,0; 3,0.
Number of secondary windings:
1, 2, 3, 4
Operating temperature °C:
from - 45 °С to 50 °С
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Same day when ordering before 16:00
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The current transformer is a single-phase cast construction. The primary winding, core, and secondary winding of the current transformer are filled with cycloaliphatic epoxy resin under vacuum, which provides protection against corrosion, moisture penetration, has high insulating capacity, and is resistant to environmental and climatic conditions such as ultraviolet radiation and air. The transformer does not require additional service and maintenance during operation. It has a copper primary winding that can be ordered with switching the number of turns. Secondary windings are multi-turn, made of copper wire, located on charged magnetic conductors made of cold-rolled electrical steel.
Reference current transformers are designed for external installation in networks with a voltage of up to 36 kV (40.5 kV). The current transformer is intended for the transmission of signals (measurement information) from the primary circuits of measurement of measuring devices, means of protection or control, for networks of secondary connections from high voltage. The current transformer acts as a support for the conductor of the primary circuit.
Specifications
Parameters
Heat resistance class of insulating material
Е
Nominal frequency, Hz
50
Nominal winding accuracy class for measurements
0,2; 0,2S; 0,5; 0,5S; 1,0; 3,0.
Number of secondary windings
1, 2, 3, 4
Operating temperature °C
from - 45 °С to 50 °С
Rated accuracy class of windings for protection
5P, 10P
Rated primary current, A
from 5 to 2500
Rated winding power per measurement, VA
from 1 to 100
Test impulse voltage, kV
190
Weight, kg
140
Winding device safety factor for measurement FS
from 5 to 30
Nominal voltage, kV
to 52
Maximum operating voltage, kV
to 40,5
Test alternating voltage, kV
95
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