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Author: AdminEMTP-RV
Type: Model
Downloaded: 136 times
Date: 2012-06-18

Sic_Test

Description:
Example of a 276 kV Sic arrester.

This is a contribution of Bob Wilson from WAPA in the USA.
This file can only be read by V 2.0.1 or higher.

This design introduces a test c... see moreircuit to evaluate different discharge voltages and the 60 Hz follow current of the Sic arrester.

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Author: AdminEMTP-RV
Type: Model
Downloaded: 207 times
Date: 2012-06-18

SVC_Simple

Description:
This is a simple SVC model with a TCR branch and fixed capacitors.

This case is taken from the book of T.E. Miller entitled 'Reactive Power Control in Electric System.

Tag(s): Power Electronics

Author: AdminEMTP-RV
Type: Model
Downloaded: 251 times
Date: 2012-06-18

SW_tContr

Description:
This design introduces a contolled-closing switch very appropriate for asymetrical current or transient voltage studies during shunt-reactor/capacitor bank switching or fault creation.

This... see more is a contribution of Pierre Larivière from Hydro-Québec TransEnergie.

Tag(s): Protection

Author: AdminEMTP-RV
Type: Model
Downloaded: 209 times
Date: 2012-06-18

TCR1

Description:
Example of single phase Thyristor Controlled reactor using TACS control devices. This circuit reproduces the TCR case presented in the EMTP Workbook volume 4 chapter 6.

Example of single ph... see morease Thyristor Controlled reactor using TACS control devices. This circuit reproduces the TCR case presented in the EMTP Workbook volume 4 chapter 6.

The basic static Var system consists of a static switch in series with an inductor. This is normally called a phase controlled reactor, or Thyristor Controlled Reactor (TCR). The TCR is in parallel with a fixed capacitor. Together they interface with the power system at some interconnection point. The control circuit of the TCR can be divided into three parts. There is the gate pulse generator (GPG), the heart of the control system, a voltage regulator and an interface to the power systems which could be simply a RMS voltage meter.

The purpose of the gate pulse generator is to provide firing pulses to the thyristors. The regulator calculates the conduction angle, ?, which is passed to the gate pulse generator as a control signal. It is the function of the gate pulse generator to generate the correct firing pulses to achieve the requested conduction angle, ?. In this example the gate pulse generator is modeled using TACS control devices.

Tag(s): Power Electronics

Author: AdminEMTP-RV
Type: Model
Downloaded: 183 times
Date: 2012-06-18

Test_Secarc_Final

Description:
This design introduces a validated secondary arc model useful for the study of single-pole switching.

The secondary arc model is taken from the litterature. Although it is still not possibl... see moree to predict secondary arc extinction time, this model may be used to study the interaction of the secondary arc with the circuit.

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