British Standard IEC Fuses for Use in Oil Filled Distribution Switchgear : OEFMA

British Standard IEC Fuses for Use in Oil Filled Distribution Switchgear : OEFMA

BS 2692-1 medium voltage fuses for use on the primary circuit of three-phase 50Hz transformers in oil field switchgear. Fitted with powerful pyrotechnic striker pin

 

 

Catalog Details

Medium Voltage Fuse Catalog # MVFL1111

Agency Cards

 Catalog Numbers/ Transformer Primary Voltage

  3.3kV

  3.6OEFMA63

  3.6OEFMA80

  3.6OEFMA100

  3.6OEFMA125

  3.6OEFMA160

  3.6OEFMA200

  3.6OLGMA250

  3.6OLGMA250*

This Catalog Number selection table is based upon the following criteria:

1. Withstand against magnetizing inrush current taken as 12 times full-load current for 0.1 second.

2. Withstand against 150% permissible overload current. Recommendations marked with asterisks have the following significance:-

*Limited to permissible overloads of 130%.

**Permits use of a 12kV OHFMA 80A fuse with a 100kVA transformer where permissible overload does not exceed 130%.

3. For 6.6kV systems, 12kV fuses are recommended where possible in the interests of standardization.

4. Wherever possible, 10 inch long FO1 fuses are offered rather than equivalent 14 inch FO2 types.

5. The above recommendations are not generally applicable to transformers feeding motor circuits with starting currents in excess of the transformer full load current. In this event, please consult Cooper Bussmann.

 Basic Catalog Numbers

  3.6OEFMA

  3.6OEGMA

  3.6OLGMA

  7.2OEFMA

  7.2OHGMA

  12OEFMA

  12OHFMA

  12OHGMA

  12OLGMA

  15.5OEFMA

  15.5OHGMA

  15.5OLGMA

  17.5OHGMA

  24OEGMA

For Additional Information: Catalog Details