110kV CT126-1 Circuit Breaker Spring Operating Mechanism Mekanismo sa Pana para sa 110kV CT126-1 na Circuit Breaker

Ang 110kV CT126-1 circuit breaker mao ang "pintuan sa kalambutan" sa high-voltage distribution networks. Ang iyang dedicated spring operated mechanism mao ang core power component, nga may "high-voltage adaptation, high reliability, ug fast response" isip design core. Pinaagi sa customized energy storage ug transmission systems, naka-match niya ang opening ug closing requirements sa circuit breaker, ug gi-gamit kini labi na sa 110kV substations, cross regional transmission lines, ug large industrial high-voltage distribution systems aron masiguro ang reliable on/off ug fault isolation sa high-voltage circuits. ​
1、 Core Working Principle: Energy Storage Transmission Logic in High Voltage Scenarios
1. Customized dual spring energy storage system
Isip tugon sa high operating power demand sa 110kV circuit breakers (closing operation power ≥ 450J), ang mechanism nag-adopar og dual spring combination design sa "main closing spring+auxiliary energy storage spring":
Main spring: Gihimo sa 60Si2MnA high-strength alloy spring steel nga may diameter nga 28mm, quenched sa 1050 ℃ ug tempered sa 450 ℃, ang tensile strength mobati sa 2100MPa, ug makapugos og 520J ka energy sa maximum deformation nga 35mm, naghatag og core power alang sa closing action; ​
Auxiliary spring: Gihimo sa φ 12mm 50CrVA spring steel, compressed synchronously sa main spring aron matumong sa load sharing, reduce fatigue loss sa main spring, ug extend ang overall spring component life (≥ 15000 energy storage cycles). ​
Ang energy storage method nag-support sa dual modes sa "electric+manual" ug suitable para sa emergency needs sa high-voltage scenarios
Electric energy storage: Equipped sa 2.2kW three-phase asynchronous motor (AC380V, speed 1450r/min), ang energy storage shaft gisulayan sa rotation pinaagi sa three-stage helical gear reduction (reduction ratio 1:150), ug ang cam mechanism gitakda ang spring aron mogas. Human sa energy storage completed, mechanical lock gihatagan sa double pawl, ug ang travel switch triggers ang motor aron maputli ang power. Ang tanang proseso magdili ≤ 25s
Manual energy storage: Sa emergency situations, isulod ang Z-shaped extended rocker handle (650mm in length, designed sa labor-saving lever). Kapag ang rocker handle rotates sa 20r/min, energy storage mahimong completed within ≤ 60 turns, meeting the emergency operation needs during power outages

2. Coordination of high-voltage opening and closing actions
Ang transmission connection tali sa mechanism ug CT126-1 circuit breaker gisunod sa precise calibration aron masiguro ang precise operation sa high-voltage scenarios
Closing process: Human natanggap ang closing signal, ang DC220V closing electromagnet (suction force ≥ 90N) gitakda ang release pin, ug ang double claws released synchronously. Ang main spring instantaneously releases energy, ug ang main shaft sa circuit breaker driven sa rotation pinaagi sa chrome molybdenum steel transmission connecting rod (φ 20mm, yield strength ≥ 800MPa), ug ang moving contact quickly closes. Ang closing time ≤ 80ms, ensuring the rapid restoration of power supply sa 110kV line; Sa parehas nga oras, ang opening spring stretches ug stores energy, ug ang pre tightening force adjustable within the range of 50-80N by adjusting the nut, adapting to the opening speed requirements of different arc extinguishing chambers. ​
Opening process: Kapag ang system detects faults sama sa short circuit (short circuit current ≤ 40kA), overload, etc., ang opening electromagnet (or manual opening handle) will act, ang opening lock will release, ang opening spring will release energy, ug ang transmission mechanism will drive ang moving contact to open. Ang opening time ≤ 30ms, ug it will cooperate with the arc extinguishing chamber of the circuit breaker to quickly cut off the high-voltage arc, avoiding the expansion of the fault. Ang opening rebound amount ≤ 2mm, which meets the requirements of GB/T 1984-2014 "High Voltage AC Circuit Breaker" standard.