Advanced technology solves Big Rivers capacitor-bank-protection problems

Journal Article · Sun Jun 01 04:00:00 EDT 1980 · Electr. Light Power (Boston); (United States)

OSTI ID:5226194

Schultz, D E; Shelley, D A; Zulaski, J A

Thirty months of operation have proven that Big Rivers Electric Corp. has found an improved, technically sound, economically superior solid-state solution to its grounded wye-connected shunt-capacitor-protection problems. Specifically, the new capacitor-bank protection system is highly sensitive to overvoltage stresses on individual capacitor units within the bank, yet is insensitive to routine system and back-to-back switching disturbances. It provides fast, easy compensation for signal errors introduced by capacitor-unit manufacturing tolerance variations and by fixed-system voltage unbalance. Its built-in panel controls enable operators to achieve signal-error compensation in minutes following capacitor-bank energization, eliminating the tedious shakedown operation of relocating individual units within the bank. In addition, the system's improved grounding and surge protection at critical points in the control circuits preclude misoperation and surge-voltage damage sometimes experienced with other solid-state devices.

• OSTI ID: 5226194
• Journal Information: Electr. Light Power (Boston); (United States), Journal Name: Electr. Light Power (Boston); (United States) Vol. 58:6; ISSN ELLPA
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
ALGEBRAIC CURRENTS
CAPACITORS
CONTROL EQUIPMENT
CURRENTS
ELECTRICAL EQUIPMENT
ELECTRICAL TRANSIENTS
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
NEUTRAL CURRENTS
POWER TRANSMISSION LINES
SURGES
SWITCHING CIRCUITS
VOLTAGE DROP