Porcelain Housed Surge Arresters
Key attributes
| Brand | ROCKWILL |
| Model NO. | HM3/4 Porcelain Housed Surge Arresters |
| Rated voltage | 550kV |
| Series code | 4 |
| Series | HM3/4 |
Product descriptions from the supplier
Porcelain housed surge arresters have been the standard in the industry for the last 70 years. The MVN, MH3 and MH4family of surge arresters continue in this proud tradition and they are available for use on system voltages from 2.4 kV to 500 kV (2.52 kV max to 550 kV max). They offer high mechanical strength compared to polymer housed station class surge arresters.
Additionally, the MVN, MH3 and MH4 families (up to 353 kV MCOV) meet the requirements for High Seismic Performance per IEEE Standard IEEE 693-2018.
Construction:
Porcelain housing for maximized mechanical performance
Single column of MOV discs and aluminum spacers (as required) centrally located within housing
Disc column held under high spring compression between ductile iron end fittings affixed to housing
Directional pressure relief system built integrated into end fittings
At-a-Glance:
Operate at altitudes up to 12,000 feet/3,600 meters
Designed to withstand winds up to 120 mph
High cantilever strength for windstorms or earthquakes
Technology parameters
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m²m²
Total staff: 700+
Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: High Voltage Electrical Apparatus
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.
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