Technical Overview of FRD Series Wired High-Voltage Phase Comparators for Power Systems

The FRD Series Wired High-Voltage Phase Comparator, developed for power system applications, addresses the critical need for safe and efficient phase verification, voltage detection, and grounding fault identification. Designed with metal-film resistor voltage reduction technology, this device ensures reliable phase discrimination through intuitive pointer-based visualization, while integrating advanced safety and functionality for high-voltage environments. Supporting voltage classes from 3kV to 110kV (including a 380V low-voltage variant), the FRD series combines precision engineering with robust insulation to meet diverse operational demands.

Key Design Features

Dual-Mode Phase Indication
The device provides unambiguous phase status feedback via audible alerts and visual signals (LED indicators), regardless of phase alignment. This ensures rapid decision-making in both synchronized (same-phase) and unsynchronized (different-phase) conditions.

Self-Testing Capability
A unique low-voltage validation feature allows technicians to verify instrument functionality using 220V/380V power sources prior to high-voltage deployment, enhancing operational safety.

Energy-Efficient Automation
An integrated auto-power management system activates the device upon use and deactivates it during idle periods, minimizing power consumption without manual intervention.

Technical Specifications
The FRD series offers six voltage-specific configurations, optimized for distinct operational parameters:

Safety and Reliability

Insulation Design: Multi-layered epoxy resin composite insulation rods exceed IEC standards for dielectric strength, ensuring operator protection at specified voltage levels.

Phase Discrimination Accuracy: Linear scaling of the pointer mechanism correlates precisely with voltage differentials, enabling clear identification of phase mismatches (e.g., 0kV for synchronized phases vs. line voltage for unsynchronized phases).

Ergonomic Construction: Lightweight, modular components (e.g., detachable insulated rods) facilitate easy transport and assembly in confined or elevated workspaces.

 Operational Applications

Phase Verification: Confirm phase alignment during grid synchronization, transformer commissioning, or feeder transfers.

High-Voltage Detection: Validate live/dead status of circuits up to 110kV.

Ground Fault Localization: Identify resistive or conductive grounding anomalies in distribution networks.

The FRD Series Phase Comparator exemplifies a harmonized balance of precision, safety, and adaptability for high-voltage electrical testing. Its tiered voltage-specific configurations, coupled with self-diagnostic and energy-saving features, render it indispensable for technicians engaged in grid maintenance, substation operations, and fault analysis. By adhering to stringent insulation protocols and delivering real-time phase data, the FRD series significantly mitigates risks associated with traditional manual phase-checking methods.

GDZX is a manufacturer of power testing equipment, offering a wide range of product categories with comprehensive models and providing professional technical support. Contact: +86-17396104357.Website: https://www.highvoltage-testequipment.com/