Aierway 40.5KV Center Distance 400mm(standard pole)

The Aierway 40.5kV Center Distance 400mm (Standard Pole) represents a specialized, compact configuration of medium-voltage switchgear designed specifically for pole-mounted or compact ground-mount applications in 40.5kV distribution networks. The defining feature—a 400mm phase-to-phase (center-to-center) busbar distance—signifies an optimized, space-saving design that maintains full electrical performance for standardized installation footprints. This product is ideal for extending distribution networks, branching lines, or connecting distributed energy resources where space is constrained.

描述

Product introduction

The Aierway 40.5kV Center Distance 400mm (Standard Pole) represents a specialized, compact configuration of medium-voltage switchgear designed specifically for pole-mounted or compact ground-mount applications in 40.5kV distribution networks. The defining feature—a 400mm phase-to-phase (center-to-center) busbar distance—signifies an optimized, space-saving design that maintains full electrical performance for standardized installation footprints. This product is ideal for extending distribution networks, branching lines, or connecting distributed energy resources where space is constrained.

Key Features

1.Primary Switching Device: Usually integrates a **3-position SF₆ gas-insulated Load Break Switch (LBS)** with Make, Break, and Earth functions. Some variants may incorporate a Vacuum Circuit Breaker (VCB) for full fault interruption capability in the same compact footprint.
2.Modular Bay Design: Each unit typically functions as a single bay (e.g., one incoming or outgoing feeder). Multiple units can be bolted together side-by-side on a common frame to form a complete ring main or switching station, maintaining the consistent 400mm center distance.
3.Maintenance-Free Operation: No internal maintenance required for the sealed-for-life primary compartment.
4.Enhanced Safety: Fully grounded metal enclosure with no exposed live parts.

Main Technical Parameters

Specification Value
Rated voltage 40.5kV
Rated current 1250A, 1600A, 2000A, 2500A
Power Frequency withstand 95kV
Lightning Impulse withstand 185kV
Rated Frequency 50 Hz
Rated short circuit Breaking current 25kA, 31.5kA
Rated short circuit Breaking Times 30 times
Rated Peak withstand current 80kA
Rated single Capacitor Bank Breaking current 630A
Rated Back-to-Back Capacitor Bank Breaking current 400A
Loop Resistance under Rated contact Force ≤25 ~ 30μΩ
Contact Self-Closing Force 200±60N
Parameters of Matching Vacuum Switch
Specification Value
Contact opening Distance 20±1mm
Rated Over-Travel 5±1mm
Average Opening speed 1.7±0.2m/s
Average Closing speed 0.75±0.2m/s
Rated contact Force 3100±200N, 3600±300N
Contact Closing Bounce Time ≤3ms
Opening Contact Rebound Amplitude ≤2mm
Outline and dimensions of installation