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Home❯Products❯Medium Voltage Distribution❯Overhead Line Apparatus

Standardized Primary-Secondary Fusion Pole-Mounted CB

The Standardized Primary-Secondary Fusion Pole-Mounted Circuit Breaker integrates primary equipment (such as circuit breaker and disconnector) with secondary equipment (such as protection and measurement devices) into an intelligent distribution device. It is designed to improve the automation level, reliability, and safety of distribution networks, while facilitating installation, operation, maintenance, and interchangeability among equipment from different manufacturers. Widely used at tie points, section points, or customer boundary points on 10kV overhead distribution lines, it performs line breaking, control, protection, and line loss data acquisition functions.


Specifications

Specifications Product Image
Rated voltage: 12kV
Rated current: 630A
Rated short-circuit breaking current (rms): 20kA
Rated short-circuit current breaking operations: ≥30 times
Rated short-circuit making current (peak): 50kA
Rated frequency: 50Hz
Rated short-time withstand current (4s): 20kA
Partial discharge of complete unit (at 14.4kV): ≤20pC
Mechanical life (circuit breaker / disconnector (optional)): ≥10,000 / 3,000 operations
Lightning impulse withstand voltage (peak), phase-to-phase and phase-to-ground / open contact: 75 / 85kV
Power frequency withstand voltage (1min) (rms), phase-to-phase and phase-to-ground / open contact: 42 / 48kV
Secondary circuit 1min power frequency withstand voltage: 2kV
Rated peak withstand current: 50kA

Features

Installation interface: Provides standardized mounting interface design for easy connection and interchangeability with other equipment.
Intelligent functions: Supports analog and status data acquisition and monitoring, enables on-site operational analysis, and achieves accurate fault identification and fast isolation for short circuit, ground fault, and broken con
Environmental adaptability: Suitable for various conditions including high altitude, high pollution, high condensation, high salt fog, and extremely cold regions.

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