Outdoor Circuit Breaker Production Line
Description
Raw material preprocessing unit
Sheet metal processing involves automatic cutting of metal casing sheets using laser cutters, while bending robots complete the box body forming. Surface treatment includes anti-corrosion processes through automated sandblasting/phosphating lines, followed by epoxy resin coating application using spraying robots (resistant to UV and salt fog).
Core component assembly line
Arc extinguishing chamber assembly involves robotic arms working with visual positioning systems to install ceramic or composite arc extinguishing chambers, with automatic vacuum detectors ensuring seal integrity. Contact system: Servo pressing machines precisely press silver tungsten alloy contacts, and torque sensors control the fastening precision (±0.1Nm).
Mechanism assembly module
Spring energy storage mechanism: Assemble the six-axis robot's closing and opening springs, calibrate the pre-compression amount using a laser rangefinder. Transmission components: Automated oil injection equipment fills lubricant, high-frequency test bench simulates ten thousand mechanical operations.
Secondary control system
Intelligent terminal installation: SCARA robots assemble microprocessor protection units and automatically burn firmware. Wiring process: Harnesses are automated for crimping and wiring, and a 3D scanner verifies wire routing compliance (to avoid electromagnetic interference).
Application
1. Power grid infrastructure construction
• Transmission and distribution system: Produces pillar-type circuit breakers for substations and overhead lines (such as 72.5kV to 550kV ratings) to meet the bidding requirements of State Grid/Southern Power Grid.
• Grid connection of new energy sources: Provides circuit breakers with rapid disconnection capability for wind power and photovoltaic power stations (with short-circuit breaking current exceeding 40kA) suitable for frequent switching operations.
2. Industrial sector
• Metallurgy/Chemical industry: Manufacturing corrosion-resistant circuit breakers (stainless steel casing + special sealing) for high-dust, high-humidity factory areas.
• Railway power supply: Producing 27.5kV circuit breakers specifically for electrified railways with earthquake-resistant design.
