• Model NO.: PRNT-15.5/-1.8
• Type: Current Fuse
• Shape: Insert
• Fusing Device: Link Break
• Trademark: zhenli
• Origin: Xi′an

• Breaking Capacity: High
• Usage: High Voltage
• Fusing Speed: FF
• Standard: UL
• Transport Package: Carbon
• HS Code: 8535100000

High-voltage fuse for overload protection of oil-immersed transformer

This product applies to indoor AC 50~60Hz system with the rated voltage of 15.5kV and shall be used in series with the backup fuse for oil-immersed transformer overload protection, and can provide the full range protection for indoor power system. The product has passed the type test conducted by the national high-voltage electrical equipment quality supervision and inspection center, and conforms to GB15166.2 and IEC282-2.
Model:
 

Basic parameters:
  Outline and installing dimensions:
 


                                           Fig.2 Dimensions of the Overall and Installation
Main technical performance:
           
Fig.3 the fuse and backup fuse protection feature
Note: Point A: the intersection of two curves
Point B: rated minimum breaking current of backup fuse
Point C: rated maximum breaking current of fuse
During the operation, point A must be present and point B is above point A
Point C is below point A.
 

  Fig. 4 Time - current characteristic curve
 
 
 
 
Installation and use
1. When mounting the fuse into the tank, ensure the oil level is within the range as shown in Fig. 2
2. When replacing the fuse, open the buckle on the handle and turn the handle for 90° to eliminate the adhesion between the sealing gasket and outer tube. Remove and replace the handle.
3. For the installation of three-phase fuse, replace all three phases unless you can confirm that the fault current passes through one phase.
 

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