Capacitor Unbalance Voltage Protection: Working Principle, Function, and Setting Calculation
Capacitor Unbalance Voltage Protection is used to monitor the voltage distribution among individual units within a capacitor bank, particularly in series-connected banks. Its operating principle is based on Kirchhoff's Voltage Law and capacitor voltage division. Under normal operating conditions, the voltage across each unit in the bank is relatively balanced, resulting in a minimal unbalance voltage. When a capacitor unit fails (e.g., internal short circuit, open circuit, or performance degradation), the voltage distribution becomes unequal, generating a significant unbalance voltage.
2025/11/12
Capacitor Unbalanced Current Protection: Working Principle, Function, and Setting Calculation
Capacitor unbalanced current protection is a critical technology in power systems used to detect and protect against internal faults within capacitor banks. It operates by monitoring the changes in unbalanced current at the neutral point or bridge circuit of the capacitor bank, promptly isolating faults to prevent their escalation.
2025/11/05
Generator Protection Relay Panel : Composition and Function
Integrating protection, measurement, and communication, the Generator Protection Relay Panel can realize the protection and control of various units, enabling unattended or minimally attended operation. It can achieve generator differential protection, rotor earth fault protection, stator earth fault protection, excitation protection, overcurrent protection, overvoltage protection, overload protection, backup protection, etc.
2025/11/25
