synchronizer testing 2cmcs ans 10003 enu

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© OMICRON of 7

Application Note

Testing 6-phase Synchronizers with two CMC Test Sets

Author Stephan Geiger | [email protected]

Date

Nov 23, 2010

Related OMICRON ProductsCMC Test Sets, Test Universe

Application AreaRelay testing

KeywordsTesting, synchronizer, relay

Versionv1.0

Document ID ANS_10003_ENU

mailto:[email protected]






© OMICRON 2011 of 7

Content

1 Introduction ..................................................................................................................................... 3

2 Wiring Diagram ................................................................................................................................ 3

3 Software Settings ............................................................................................................................ 4

Please use this note only in combination with the related product manual which contains several important safetyinstructions. The user is responsible for every application that makes use of an OMICRON product.

OMICRON electronics GmbH including all international branch offices is henceforth referred to as OMICRON.

© OMICRON 2010. All rights reserved. This application note is a publication of OMICRON.

All rights including translation reserved. Reproduction of any kind, for example, photocopying, microfilming, opticalcharacter recognition and/or storage in electronic data processing systems, requires the explicit consent of OMICRON.Reprinting, wholly or in part, is not permitted.

The product information, specifications, and technical data embodied in this application note represent the technicalstatus at the time of writing and are subject to change without prior notice.

We have done our best to ensure that the information given in this application note is useful, accurate and entirelyreliable. However, OMICRON does not assume responsibility for any inaccuracies which may be present.OMICRON translates this application note from the source language English into a number of other languages. Anytranslation of this document is done for local requirements, and in the event of a dispute between the English and a non-English version, the English version of this note shall govern.




1 Introduction

Usually for testing 6-phase synchronizer relays six voltage channels are necessary in order to simulate twoindependent 3-phase systems. Therefore often external voltage amplifiers like the CMS 156 are connectedto the CMC Test Set. However, instead of an external voltage amplifier also a second CMC Test Set with itssynchronization feature can be used.

This Application Note should provide assistance with testing a 6-phase synchronizer relay without anyadditional voltage amplifiers by making use of two CMC Test Sets.

Required Hardware:

> 2 x CMC 256-6 / 256plus / 356 / 353

Required Test Universe modules:

> Synchronizer

> QuickCMC

2 Wiring Diagram

The devices have to be wired as shown in the wiring diagram below:

Figure 1: Wiring diagram




3 Software Settings

1. Start the Synchronizer module

2. Choose CMC#1 in the Hardware Configuration and select the configuration as shown inthe figures below.

Figure 2: Output configuration of CMC#1

Figure 3: Analog output configuration of CMC#1




3. Define the relay test in the Synchronizer module. The figure below shows an example.

Figure 4: Test example

4. Open a QuickCMC module parallel to the Synchronizer module and select CMC#2 in the HardwareConfiguration. The output configuration of CMC#2 has to be defined as shown in the figure below.

Figure 5: Output configuration of CMC#2




5. Now define the output voltage in QuickCMC . Enter the voltage which has been defined in theSynchronizer module for System 1 (figure 6). The phase shift between the voltages has to be 0°, -120°and 120°.

Figure 6: Transferring the settings

6. As a next step select Synchronize to Input... from the Parameters menu entry in QuickCMC and

activate the button Synchronize.

Figure 7: Synchronize mode

7. Start thereupon QuickCMC by pushing the ON button or F5-key and execute the defined test in theSynchronizer module subsequently. Now CMC#2 will be synchronized to CMC#1 and a test with sixvoltages takes place.

8. As soon as the test in the Synchronizer module is finished, switch off the outputs in the QuickCMC module and save the results.



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synchronizer testing 2cmcs ans 10003 enu

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