ABB HV CEF type Fuse link high-voltage backup fuses

CEF type:

Application: Mainly used for the protection of distribution transformers, suitable for indoor/outdoor and oil-immersed installation.

Voltage and current: The rated voltage range is 3.6/7.2-36kV, and the rated current is 6 - 200A.

Features: It has the advantages of low minimum breaking current, low power consumption, low arc voltage, high breaking capacity and high current limiting characteristics, which can effectively protect equipment and reduce the damage to equipment caused by short-circuit current.

ABB HV CEF fuse is a high-voltage current-limiting backup fuse, mainly used to protect distribution transformers, cables, overhead lines and other equipment from the thermal and dynamic effects of short-circuit current. Here is a detailed introduction:

Design standard: Designed and tested in accordance with IEC60282-1 standard, dimensions consistent with DIN43625.

Rated parameters: Rated voltage range is 3.6/7.2 - 36kV, rated current is 6 - 200A.

Product features:

Excellent performance: It has the advantages of low minimum breaking current, low power consumption, low arc voltage, high breaking capacity and high current limiting characteristics. It can effectively reduce short-circuit current, extend the service life of equipment, and can simultaneously cut off short-circuit current in three-phase systems.

Wide application: One design meets the requirements of indoor and outdoor use at the same time. The standard version includes outdoor sealing, which is suitable for harsh environmental conditions.

Easy to maintain: The fuse end cap is printed with barcodes and key information, and the key data of the fuse is engraved on the outer surface, which is easy to identify the product model and related information. In addition, ABB overvoltage detection technology is applied, and each fuse passes the airtightness test during the production process. The sealing system ensures the airtightness of the fuse, and even if the impactor pops out, it will not destroy the original airtightness.

Perfect protection: The melt welding process ensures the long-term operation reliability of the fuse, and is equipped with a temperature control unit (TCU) to prevent the fuse from overheating. The internal arc initiation is controlled by the overload point design, and it has excellent temperature performance.

The following are some common ABB HV CEF type fuse models:

1YMB710713M1611: rated voltage 3/7.2kV, rated current 6A.

1YMB710716M1611: rated voltage 3/7.2kV, rated current 10A.

1YMB710718M1611: rated voltage 3/7.2kV, rated current 16A.

1YMB710721M1611: rated voltage 3/7.2kV, rated current 25A.

1YMB710725M1611: rated voltage 3/7.2kV, rated current 40A.

1YMB710727M1611: rated voltage 3/7.2kV, rated current 50A.

1YMB710729M1611: rated voltage 3/7.2kV, rated current 63A.

In addition, there are models such as 1YMB751714M2502 (CEF-VT 10/17.5KV 6.3A), 1YMB711233M2612 (CEF 6/12KV). CEF fuses are available in voltage ratings from 3.6/7.2 to 36 kV and current ratings from 6 to 200 A. Different models vary in size, weight, minimum breaking current and other parameters.