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Home❯Products❯Medium Voltage Distribution❯Overhead Line Apparatus

Traveling Wave Fault Locating Type Primary and Secondary Fusion Pole-Mounted CB Assembly

The Traveling Wave Fault Locating Primary-Secondary Integrated Pole-Mounted CB Assembly integrates the vacuum interrupter, high-frequency current coil, and voltage sensor into the embedded pole, offering a compact profile and light weight for easy field installation. When used with a feeder terminal unit (FTU), it achieves fault location accuracy within <150m.

Specifications

Specifications Product Image
Secondary circuit 1min power frequency withstand voltage: 2kV
Rated short-circuit making current (peak): 50kA
Mechanical life (circuit breaker / disconnector (optional)): ≥10,000 / 3,000 operations
Rated voltage: 12kV
Rated current: 630A
Lightning impulse withstand voltage (peak), phase-to-phase and phase-to-ground / open contact: 75 / 85kV
Rated short-circuit current breaking operations: ≥30 times
Rated frequency: 50Hz
Power frequency withstand voltage (1min) (rms), phase-to-phase and phase-to-ground / open contact: 42 / 48kV
Partial discharge of complete unit (at 14.4kV): ≤5pC
Rated short-time withstand current (4s): 20kA
Rated short-circuit breaking current (rms): 20kA
Rated peak withstand current: 50kA

Features

AI deep learning algorithms adopted for accurate fault type identification and precise fault location, with fault locating error <150m
Traveling wave current sampling frequency ≥1MHz, time synchronization accuracy ≤0.1μs
Full-band current sensor capable of measuring power frequency, fault, and traveling wave currents
GPS high-precision synchronized time reference with dual-terminal device synchronization error <100ns
Embedded poles manufactured using APG integrated casting process with composite insulation (epoxy resin plus outer silicone rubber), offering reliable performance and excellent weather resistance
Supports combination with a disconnector to form a "combined circuit breaker" with visible break

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