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EL-322A digital transformer backup protection device
EL-322A digital transformer backup protection device
Product details
product description

EL-300AThe series of digital protection and measurement devices are suitable for22OkThe protection and measurement of interval units with voltage levels below V have complete protection, measurement, control, fault recording, and communication monitoring functions, providing a complete solution for the protection and control of substations, power plants, high and low voltage distribution, and plant power systems, which can effectively ensure the safe and stable operation of high and low voltage power grids and plant power systems. All devices can be installed in a centralized manner through screen grouping, or can be installed on-site in high and low voltage switchgear. The configuration is flexible, easy to expand, the operation is simple, and the maintenance is convenient.

scope of application

apply to220kVTransformer protection for the following voltage levels. It can be centrally assembled into screens or installed on-site in the switchgear, fully supporting the comprehensive automation system of the substation.

Protection function

Three stage overcurrent protection (negative sequence control, directional control, low voltage control)

Zero sequence overcurrent protection/call the police

Overload alarm

Zero sequence overvoltage protection/call the police

heavy gasprotect/call the police

Light gascall the police

Over Temperature Protection/call the police

PTWire breakage alarm

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Successful operation!

Successful operation!

Successful operation!