TRANSIENT TRIPPING OF DC CIRCUIT BREAKER POWER SUPPLY PP-2953B/U.
Abstract
Field tests and depot tests of Radio Terminal Set AN/GRC-163 and Radio Set AN/VRC-47 indicate that the DC circuit breaker on Power Supply PP-2953B/U opens when these systems are run on high power. Cause of the problem is identified by analysis of dynamic system performance. System deficiency is corrected by changing to a breaker with a higher trip current rating and longer delay time. Attendant design changes to the voltage control circuitry to protect the solid-state devices against destructive overload conditions are described. A modification has been devised to make the PP-2953B/U compatible with the AN/GRC-163 and AN/VRC-47 systems. The modification can be quickly and satisfactorily implemented by depot retrofit of existing power supply items. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1969
- Accession Number
- AD0695649
Entities
People
- Melvin E. Cannon
- William L. Dudley
Organizations
- United States Army Communications-Electronics Command