CEE Relays Ltd.

87C Whitby Road, Slough, SL1 3DR

Telephone: (01753) 576477        Fax: (01753) 825661

Website: www.ceerelays.co.uk

 

 

 

IEC_FAULT Study ModuleIEC_FAULT Study Module

IEC_FAULT calculates short-circuit currents using the equivalent voltage sourceas required by the IEC 60909 Standard (formally IEC909).
 

Features

User-defined voltage factor table for assigning pre-fault voltages.

Earth return current for two phase to earth faults.

Option to use load flow results for assigning system pre-fault voltages.

Models transformer and generator earthing impedances.

Models transformer taps in all three sequence networks.

Calculates near/far and meshed/non-meshed status for each source.

Three phase, single-phase to earth, two-phase to earth, and phase to phase faults.

Reports positive, negative, and zero sequence Thevenin impedance at each bus.

Complete representation of the positive-, negative-, and zero-sequence networks.

Reports total initial symmetrical apparent power, S"k.

Reports total asymmetrical breaking current, Ib at user defined Tmin.

Reports total steady state apparent power, Sk.

Reports total initial symmetrical current, I''k.

Reports total aperiodic component of short circuit current, Idc at Tminimum.

Reports total peak current, Ip.

Reports symmetrical breaking current, Ib at user defined Tmin.

Reports steady-state symmetrical current, Ik.

Reports system branch flows for each fault location.

Download the brochure in PDF format:

      IEC60909.pdf (480kB)

Download Acrobat Reader - version 5.0 (or above) required.

 

 


Copyright © 2002-2006 CEE Relays Ltd.

 

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