No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

TP48200A-DT19D1 Telecom Power User Manual

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
DC Over Volt

DC Over Volt

Possible Causes

  • The DC overvoltage alarm threshold is incorrectly set on the SMU.
  • The power system voltage has been manually set to a very high value.
  • Rectifiers are faulty.

Measures

  1. Check whether the DC overvoltage alarm threshold (58 V DC by default) is correctly set. If not, set the threshold to the correct value.
  2. Check whether the system voltage has been manually set to a very high value. If so, check with other maintenance personnel whether the voltage can be changed to a normal value.
  3. Remove the rectifiers one by one and check whether the alarm is cleared. If the alarm still exists, reinstall the rectifier. If the alarm is cleared, replace the rectifier.
Download
Updated: 2019-11-27

Document ID: EDOC1000078784

Views: 23760

Downloads: 495

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Share
Previous Next