Self-load bank for UPS testing by circulating current method

C. L. Chu, Jiann-Fuh Chen

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


For saving energy and reducing costs of the burn-in test of an uninterruptible power supply (UPS) system, the self-load bank by the circulating method is proposed. The AC/DC converter of the tested UPS itself is used as a nonlinear load, the tested current flow as a form of circulation, and the power of the tested load is controlled by a DC regulator also supplying the energy loss of the tested UPS. To test a linear load, a regulator is used to regulate the load characteristic. From the experimental results the energy saved in the burn-in test is approximately 80% of that lost by the conventional method, using a directly connected RLC or rectifier load.

Original languageEnglish
Pages (from-to)191-196
Number of pages6
JournalIEE Proceedings: Electric Power Applications
Issue number4
Publication statusPublished - 1994 Jul 1

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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