020 series
A strong and flexible solution for your large distribution transformer



freccia

Key features

  • Direct and remote control available.
  • Customizable shaft length.
  • Microswitches for positioning monitoring available.
  • Motor Drive Unit applicable.


Technical data
Voltage class 24 kV, 36 kV, 52 kV, 72,5 kV
Rated current from 120 A up to 600 A
Number of positions from 2 up to 11 positions (up to 20 positions for special applications)
Available connections bridge, linear, star, series/parallel, star/delta

Download PDF
LDT 020 full catalogue pdf
Instruction manual pdf
Ordering sheet pdf

Product description

Strong and extremely flexible in the variants offered, 020 series allows to reach a maximum amount of 11 positions for standard applications. As for very special applications, the number of positions can be increased up to 20, thanks to the possibility of customizing the product.

Shaft can be placed at one side or between the phases. The change of position is allowed by a complete rotation of the shaft, which ensure a high precision and avoids any desplacement.

The drive equipment can be integrated with mechanical block or microswitches for remote control.
Motor Drive Unit (MDU) is also available as an option and it is guaranteed for 20.000 maneuvres with no extraordinary maintenance.

Contacts are available in different versions: threaded, tubular or flag-shaped. For rated currents at 600 A, contacts are always silver-plated as a standard solution to ensure better conductivity and resistance.



Fixed contacts

Threaded

Cap 8 - 120 A
Cap 10 - 200 A
Cap 12 - 300 A
Cap 14 - 400 A
Cap 16 - 600 A

Tubular

Sal 10 - 180 A
Sal 13 - 330 A
Sal 15 - 420 A
 
 

Flag

Flag B12 - 400 A
Flag B14 - 400 A
Flag B16 - 600 A
 
 

Basic connections

A

BRIDGE
CONNECTION

B

DOUBLE BRIDGE
CONNECTION

C

LINEAR
CONNECTION

D

DOUBLE LINEAR
CONNECTION

E

WYE (STAR)
CONNECTION

F

SERIES/PARALLEL
CONNECTION

H

DELTA/STAR
CONNECTION

I

EXCLUSION OF TURNS
CONNECTION

L

DELTA/STAR CONNECTION
WITH EXCLUSION OF TURNS

Handle drives

070-1.12.212

Mechanical block
 
 

pdf

070-1.12.212BE

Mechanical block
Microswitch for electrical block
 

pdf

070-1.12.101

Mechanical block
 
 

pdf

070-1.12.104

Mechanical block
Microswitch for electrical block
Microswitches for position transmitter

pdf

070-1.12.202

070-1.12.202-2

070-1.12.202BE

Mechanical block
Microswitch for electrical block
Microswitches for position transmitter

pdf

070-1.12.208

Mechanical block
 
 

pdf

070-1.12.209

Mechanical block
Microswitch for electrical block
 

pdf

070-1.12.501

Mechanical block
 
 

pdf

070-1.12.502

Mechanical block
Microswitch for electrical block
 

pdf

Layout configurations

Several configurations are available to our tap changers: please download the following PDF file and choose the most suitable layout for your project.

pdf  Download configurations

Motor Drive Unit (MDU)

One of the best advantages of 020 series is the possibility to apply our Motor Drive Unit: you can find additional information by downloading the following PDF files.

pdf  Download MDU

General features

  • All our tap changers are suitable for mineral oil-immersed transformers. Special executions for usage in synthetic and natural Ester fluids are also available upon request.

  • Drive handle and external parts can be provided with specific treatment in case of certain environmental conditions: with special gaskets for lower or higher temperatures; with anti-corrosive treatment for dust and very polluted air.

  • All our tap changers have padlockable drive for better safety and precision.

  • Customized solutions can be designed by our Technical Department according to the specific requirements of the single project.





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