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Modern electrical equipment demands voltage stability and power quality. High voltage networks have to be free from harmonics and other electrical disturbances.

The GFN Harmonic Monitor & Compensation will allow you to maintain adequate power quality in your high voltage network by;

  • Monitoring the harmonic content in your network
  • Compensating for the harmonic current in addition to the fundamental (50Hz) current in the case of an earth fault
  • Presenting trend analysis of your networks harmonic content

A harmonic free network also imposes much less strain on equipment and lengthens its life span. This means lower maintenance cost and lower cost for replacing worn-out equipment.

GFN Harmonic Monitor & Compensation Concept

The Harmonic Compensation consists of the following parts;

  • Harmonic Monitor
  • Harmonic Controller
  • Filter Hardware

The Harmonic Monitor measures & displays the harmonic content and provides input to the Harmonic Controller.

The Harmonic Controller controls the harmonic content during an earth fault.

The Filter Hardware protects the secondary load windings of the ASC and ensures that the RCC Inverter power is fully utilized.

Harmonic Monitor

The Harmonic Monitor measures and records harmonic components up to and including 7th harmonic with an accuracy of Class B as of the IEC standard 6100-4-7:1999.

Real time results are presented in the terminal software (NMTerm ). The 3rd, 5th, and 7th harmonics are displayed in volts, angles and as in percent of the fundamental.

Harmonic Trend Analysis

Historical results are presented in NMTerm. The fundamental, 3rd, 5th, and 7th harmonics phase to ground voltage and angle is stored for L1, L2 and L3. The logging interval and buffer size is adjustable.