Harmonic filter resistors

all conductive parts are connected to a well-known potential

supported impulse test up to 400 kV

specific insulation design to guarantee the integrity of the unit in the event of overvoltages for atmospheric discharges or switching in the network

high insulations, internal and to ground

high reliability

low working overtemperature

low variation of resistance value at hot condition

These resistors , used together with reactors and capacitors, help to reduce and filter the harmonics. The main characteristics of TELEMA resistors are :

high currents at neutral point

resonances

interferences with radio and phone systems

malfunctioning of the test equipments

The Harmonic Filter resistors are used to eliminate the dangerous distortions (harmonics) generated inside the network due to connection of more and more number of electronic power converters. The main problems caused by harmonics, that are sinusoidal currents with different frequencies and amplitudes compared with the rated 50/60 Hz network currents, are :

increment of losses on the line

  • Country:Libyan Arab Jamahiriya
  • telephone:218-39 02 83382 1
The Harmonic Filter resistors are used to eliminate the dangerous distortions (harmonics) generated inside
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