Characteristics of unbalance about the earth and the calculation for a balanced cable with partial unbalance at arbitrary positions
✍ Scribed by Yoshifumi Shimoshio; Masazumi Miyoshi; Hiroaki Koga; Masamitsu Tokuda; Tomoaki Takai
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 314 KB
- Volume
- 83
- Category
- Article
- ISSN
- 8756-6621
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✦ Synopsis
It has not been clarified how the unbalance about Earth of a balanced cable varies according to the position and degree of unbalance. The unbalance comes from the cable itself or some external conditions. This article has proposed a new method of calculating the longitudinal conversion transfer loss (LCTL) characteristics of a balanced cable with partial unbalance at arbitrary positions on the cable. In this method, the balanced cable with partial unbalance is represented by adding a lumped element, which represents unbalance of the cable, to a perfectly balanced cable, which is represented by a distributed-constant circuit. Two kinds of chain matrices are derived for the perfectly balanced cable and lumped element, respectively. The balanced cable with partial unbalance is represented by a cascade connection of the matrices. We examine the LCTL characteristics of the balanced cable with capacitive unbalance at an arbitrary position and the LCTL characteristics of the balanced cable with test splicing. It is confirmed that the proposed method is useful for LCTL calculation of a balanced cable with partial unbalance.