Decision inputs
- Opening/closing speed and time requirements
- Operating energy and total travel
- Mechanism space and interfaces
- Mechanical life cycles
- Ambient temperature range
APPLICATION SOLUTION
Switchgear operating mechanism energy storage
High-voltage switchgear uses disc spring hydraulic operating mechanisms for high energy density storage and fast operation; this page covers energy storage design, simulation-to-test correlation of mechanical characteristics and life degradation prediction.
ENGINEERING PROBLEM
HV circuit breaker hydraulic spring mechanisms demand high energy density and fast reliable operation, with predictable degradation of characteristics over life.
BOUNDARY
This page describes a decision pattern and does not promise size or performance for another operating condition.
Solution pattern
- Disc spring stacks store operating energy, delivering near-constant force over the flat characteristic
- Build coupled disc spring-hydraulic models to predict operation
- Commission against mechanical characteristic tests (current/travel/speed)
- Predict life drift with low-cycle fatigue models
Key risks
- Low-cycle fatigue and relaxation shift closing time
- Hydraulic-spring coupled vibration
- Characteristic drift at low temperature
Verification plan
- Mechanical characteristic tests versus simulation
- Re-measured operating times before and after life tests
- Characteristic re-tests over temperature cycles
- Travel and stored-energy records
Source-backed correspondences
| Summary | Load | Travel | Source |
|---|---|---|---|
| 电气开关张紧——按tensioning目标预选产品族；场景摘要仅供决策参考，不构成对其他工况的产品承诺。 | 按触头压紧力目标 | 触头行程 | Source ↗ |
Evidence (library locators)
Every technical claim traces to a specific asset version and page; restricted sources show locator metadata only.
- 380 CN114664582A 一种断路器操动机构分闸缓冲器 平高集团 碟簧合闸缓冲 PDF p.1 · mechanism(internal source; excerpt not public)
- 2025 UHV Disc Spring Hydraulic Circuit Breaker Closing Time PDF p.1 · mechanism(internal source; excerpt not public)
- 381 CN103441005B 液压弹簧操动机构 高压断路器液压碟簧机构 PDF p.1 (OCR) · mechanism(internal source; excerpt not public)
- 超大功率碟簧液压机构的缓冲测试及改进 高压电器2019 PDF p.1 · mechanism(internal source; excerpt not public)
- 碟簧液压操动机构缓冲特性仿真与优化 高压电器2015 PDF p.1 (OCR) · mechanism(internal source; excerpt not public)
- de ETH Bi Stable Disc Springs HVDC Circuit Breaker PDF p.4 · mechanism(internal source; excerpt not public)
- 液压碟簧操动机构机械特性仿真与试验研究 高压电器2019 PDF p.1 · mechanism(internal source; excerpt not public)
- 379 US5189269 Fluid pressure switch having a Belleville washer Eaton 压力开关 PDF p.4 · mechanism(internal source; excerpt not public)
- 2025 UHV Disc Spring Hydraulic Circuit Breaker Closing Time PDF p.6 · numeric(internal source; excerpt not public)
- 2025 UHV Disc Spring Hydraulic Circuit Breaker Closing Time PDF p.9 · numeric(internal source; excerpt not public)
- de ETH Bi Stable Disc Springs HVDC Circuit Breaker PDF p.28 · numeric(internal source; excerpt not public)
- 378 US4245203 Circuit interrupter with pivoting contact arm Westinghouse 动 PDF p.2 · numeric(internal source; excerpt not public)
- 381 CN103441005B 液压弹簧操动机构 高压断路器液压碟簧机构 PDF p.7 (OCR) · numeric(internal source; excerpt not public)
- 382 CN106299734A 使用了碟形弹簧垫圈的柱形端子 端子碟簧垫圈预紧 PDF p.1 (OCR) · numeric(internal source; excerpt not public)
Cases illustrate decisions and do not constitute a specification promise for any other operating condition.
ENGINEERING REVIEW