현대 전기 시스템에 대한 Lsig 회로 차단기의 이점 탐색
LSIG functions give an engineer separate protection settings; they do not automatically make a system selective or safe at any setting. The benefit depends on the circuit study and the exact release supplied.
MCCB 구성 요구에 따라 후보군에 포함되어야 한다. 보호 기능 및 문서화된 전기 작업.
가이드 몰딩 케이스 방식 회로 차단기 프레임 크기, 등급 및 트립 동작의 차이점을 설명합니다.
Test and govern the settings
| 무대 | 보존할 증거 |
|---|---|
| Study | Source assumptions and coordinated curves |
| Configuration | Exact release, sensor and neutral arrangement |
| Test | Manufacturer-approved method and results |
| 인계 | As-left settings and authorised revision |
| Change | Reassessment and updated test record |
IEC 60947-2 product declarations do not approve an arbitrary delay or sensing arrangement. Follow the release’s test instructions, recognising the different scope of primary and secondary injection. Include test equipment, engineering, spares and inspection in lifecycle cost. Ask W9 for exact LSIG release documents rather than a broad claim of advanced protection.
사용하기 MCCB의 기술적 요구 사항 주문 코드와 프로젝트 파일에 따라 사양을 확인하십시오.
Assign each LSIG function a design job
Long-time pickup and delay protect the sustained-load region within the conductor limit. Short-time delay can support downstream discrimination but increases exposure while a fault persists. Instantaneous pickup must be reviewed against permitted inrush and fault-disconnection needs. Ground-fault sensing must match the earthing and neutral arrangement.
| 기능 | 설계 입력 | 확인하기 |
|---|---|---|
| L | Load and conductor ampacity | Pickup and overload curve |
| S | Downstream protection | Selectivity and withstand |
| I | Inrush and fault level | High-current response |
| G | Earthing and sensing | Pickup, delay and neutral path |
The resulting settings need authorisation, commissioning and change control. Do not disable a function to obtain a cleaner curve without reviewing the resulting protection gap. An LSIG label does not establish a 30 mA residual-current function or a communication interface.
자주 묻는 질문
What does LSIG stand for?
Long-time, short-time, instantaneous and ground-fault protection. Confirm which functions and setting ranges are present in the exact release.
Does LSIG guarantee selective coordination?
No. Selectivity depends on the actual devices, settings and fault levels. Complete the 협업 연구 and verify the approved settings.
Is G the same as an RCD’s additional shock protection?
Not automatically. Sensitivity, waveform response and sensing arrangement can differ substantially. Verify the required function separately.
Can settings be changed whenever loads change?
Changes require an approved protection review and updated records. Re-test as required and preserve conductor and equipment protection.
참고문헌
제안된 구성을 검토하기 위해, W9 그룹에 문의하기 로드 스케줄에 따라 사용 가능 과부하 전류 그리고 목적지 시장의 요구 사항도 있습니다.