SERD GmbH
   
  info@serd-gmbh.ch
   
   
   

  Transformer-Bushings  
     
  For oil immersed applications e.g. version to DIN 42 533 (e.g. Type 20N / 1000)
Exchange against existing Porcelain Bushing at Retrofit.
 
 
  Robust Design with field-proven modern Technology
 
  • Silicon-Fibre reinforced Insulation
  • Explosion und Splinter Safe
  • Stone throw- and Shock resistant
  • Simpler, easier Assembling.


Technical main Data
  • Rated Voltages Un 12 to 52kV
  • Rated Currents In 1000A; 2000A; 3150A
  • Partial Discharge free above Un
  • Temperature resistant -40°C- +120°C
  • DIN conforms or to Customer specification
    e.g. prolonged creep ages
    O-ring seal instead of flat seal


Tested Data
  • Lightning Impulse withstand
  • Power Frequency withstand 50/60Hz
  • 1min, try and rained
  • Bending load and Burst Pressure

 

 
         Type SIDI Silicon-DIN-Bushing  
 


Out of the Basic Design

SERD is able to realize Customer -Specifications for all specific Length, Flange-or Top- Connecting variants and Creep ages for all silicon isolated variants listed below.

Our innovative technologies enable us to venture into future markets.
One example is the silicone technologies as advanced modern Insulation.
 
 
 
 

Transformer –DIN Bushings with Oil Insulation

Standard Typ SIDI and Type STC

Voltages

Currents IN/  A

UN / kV

1000

2000

3150

4500

5000

8000

12

X

X

X

X

X

X

24

X

X

X

X

X

X

36

X

X

X

X

X

 

52

X

X

 

 

 

 

   
       
 


High Current- Bushing Type SIDI- HCF

Voltages

Currents IN / kA

UN / kV
8
12.5 
16
25

12

X

X

X

X

24

X

X

X

X

36

X

X

X

X

   
       
  Please ask SERD, describe the PROBLEM, we solve it!