Coupling Capacitor Voltage Transformers (126–550kV)

Property Specification

Type: High-Voltage Coupling Capacitor Voltage Transformer / CVT (126 kV to 550 kV)

Features: Engineered for phase-to-ground installation within high-voltage networks operating with grounded or isolated neutral points, this single-phase CVT covers voltage ranges from 126 kV up to 550 kV. Precision-manufactured using advanced automated processes, its capacitive elements feature a balanced mixed dielectric system that maintains low electrical gradient stress and excellent thermal stability across harsh operating temperatures. Built for exceptional long-term operational durability, it performs reliably across diverse geographical environments, including sub-zero polar regions and hot desert conditions.

Applications: Utility revenue billing and tariff metering systems, transmission grid protection schemes and relaying, and real-time power flow indication, telemetry, and system control.

Description

Key Technical Performance Specifications

Technical Parameter / Specification Unit Specification Rating / Capability
Deployment / Environment Outdoor
Structural Architecture / Construction Capacitor Type (IEC Standard Compliant)

Dielectric Insulation System

• Capacitor Voltage Divider (CVD)

• Electromagnetic Unit (EMU)

Aluminum-Foil / Paper / Polypropylene-Film with Synthetic Oil

Paper-Insulated with Mineral Oil

Rated Maximum System Voltage kV 126 – 550
Rated Voltage Factor (Vf) Up to 1.9 / 8 h
External Insulator Material Porcelain / Silicon Rubber
Specific Creepage Clearance mm/kV > 25 (Extended distances available upon request)
Operating Ambient Temperature Limits °C -40 to +40 (Others available upon request)
Standard Installation Altitude m ≤ 1000 (Others available upon request)