Transformer Neutral Point Protection Equipment - BZX Series for 110kV/220kV Systems

Fenarro's BZJ series transformer neutral point protection equipment is manufactured in strict compliance with DL/T620-1997 "Overvoltage Protection

and Insulation Coordination for AC Electrical Installations" and State Grid Corporation's "Eighteen Grid Major Anti-Accident Measures" (2005 edition).

Designed specifically for 110kV and 220kV effectively grounded power systems, our integrated protection solutions provide reliable overvoltage

protection for ungrounded transformer neutrals through gap protection technology.

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Transformer Neutral Point Equipment Series

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Key Features for Transformer Neutral Point Equipment

Advanced Switching Capability

Rated load breaking current: 630A to 1250A
Fault making capacity: 20kA to 25kA
Vacuum interruption technology
Visible isolation points

Fuse Protection Integration

Combined fuse-switch design
Transformer protection coordination
Fast fault clearance
Backup protection capability

Outdoor Reliability

IP67 protection rating
-45°C to +55°C temperature range
UV-resistant composite housing
Corrosion-resistant mechanical parts

Application Scenarios

Distribution Transformer Protection

Ideal for 10kV/0.4kV transformer protection using fuse-switch combination for overload and short-circuit protection.

Feeder Sectionalizing

Perfect for distribution network automation with sectionalizing functionality to minimize outage areas during faults.

Industrial Power Distribution

Suitable for factory power distribution systems requiring frequent load switching and transformer protection.

Renewable Energy Connections

Excellent for solar and wind farm collection systems where reliable load switching and protection are required.

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FAQs About Fenarro's Vacuum Load Break Switches

Q Do you provide complete fuse-switch combination units?

A Yes, we offer complete combination units with appropriate fuses for transformer protection.
Q What fuse types are compatible with your switches?

A Our switches are compatible with Bay-O-Net, DIN, and ANSI standard fuse types.
Q Can your load break switches be motorized for remote operation?

A Yes, we offer motorized versions with remote control capability for automation applications.
Q What is the difference between load break switches and circuit breakers?

A Load break switches can interrupt load currents but not fault currents, while circuit breakers can interrupt both load and fault currents.

Fenarro has been committed to providing safe, efficient and convenient solutions for power systems since 2009

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Quick Links

Email: julien@fenarro.com
Mobile: +86-13962241135

Telephone: +86-0512-66728956
Fax: +86-0512-66728971

Address: 2009, Bldg 2, No.168 Jingmao road, Suzhou Industrial Park, Suzhou, Jiangsu, China