DV Power TRT30C Manual - Página 13

Procurar online ou descarregar pdf Manual para Transformador DV Power TRT30C. DV Power TRT30C 19 páginas. Three-phase transformer, turns-ratio test instrument

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TRT30C

4 Error Messages

Any operational error is indicated by a red LED and accompanied by an audio alarm. Furthermore, the

display indicates an error status message. To remove the status message on the display and return to the

main menu, press

STOP

4.1 Error Message "Excitation current too high"

The Error message "Excitation current too high" is displayed if the excitation current exceeds expected

values. This value is set to 500 mA. The excitation current can be reduced by selecting lower test voltages

from the device menu.

Figure 4-1:

Error message

"Excitation current too high"

Possible reasons for this are that the transformer is drawing too much current. In that case, the test should

be repeated with a lower test voltage. Another reason for an excitation current which is too high is that the

connections are reversed. If there are no connections errors found, there may be a short circuit within the

transformer itself.

4.2 Error Message "Turns ratio too low"

This message is displayed if the turns ratio of the transformer under the test is lower than 0.8. In this case

the user should check whether H and X cables are misplaced (reversed).

Figure 4-2:

Error message

"Turns ratio too low''

4.3 Error Message "Malfunction"

In the case of an internal error, the TRT30C will display the massage "Malfunction". In this case, the

TRT30C device should be restarted.

If the error occurs repeatedly, please contact the DV P

"Manufacturer Contact Information").

Figure 4-3:

Error message

"Malfunction"

M-T030CN-203-EN

Support Team (refer to the section

OWER

Error Messages