Current Limiting Arcing Horn (CLAH) - Smart distribution arrester
CLAH with rubber molded ZnO elements and ring horn interrupts power follow current by lightning flashover.
- No service interruption (no circuit breaker tripping out)
- Protection of distribution line against lightning
Advantages over conventional arrester
Excellent protection performance
Lower discharge voltage than gappless arrester
No deterioration of ZnO elements and rubber housing by external series air gap
CLAH can be easily installed to insulator without
connecting lead wire and touching the energized part.
You have only to install it onto the earth side hardware of insulator.
Fig. and photo. : 24kV CLAH
Over 10million CLAH are used on Japanese and overseas power customers
Field data shows greatest effect of CLAH
Line faults by lightning are remarkably reduced as installation numbers of CLAH increases.
No deterioration problem
Not once have deterioration faults reported. (water immersion, tracking of housing, ZnO thermal runaway, etc.)
Inquiry about CLAH
Please apply with the contact form and give us your comments or questions.