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Isolation Transformer

$96.80$290.40 inc. GST

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Isolation Transformer

$96.80$290.40 inc. GST

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Isolation Unit includes On/Off Switch and Electrostatic Screening.

An isolation transformer is a transformer which is used to decouple two circuits, with the transformer coil windings designed for an input/output voltage of 240/240V.

This type of transformer allows an AC signal or power to be taken from one device and fed into another without electrically connecting the two circuits. Isolation transformers block transmission of DC signals from one circuit to the other, but allow AC signals to pass. They also block interference caused by ground loops.

Isolation transformers with electrostatic shields are used for power supplies for sensitive equipment such as computers or laboratory instruments.

Note: Tortech Isolation 240/240V transformers include a grounded shield between the primary and the secondary windings as a standard accessory (E/S Models). This screen has a very high coupling to the input winding. Hence it reduce common mode noise on the 240V input side.

Differential noise can magnetically couple from the primary to the secondary of an isolation transformer. This requires other measures, such as a filter, to block differential noise from the secondary of an isolation transformer.

Isolation transformers are also used for the power supply of devices not on ground potential as one option.

Features of Tortech Quality Isolation Transformers:

  • All units are High Quality Toroidal Construction
  • Input voltage 240V ±10% 50Hz. Australian flex and plug
  • Output voltage nominal 240V Unregulated. All units are fully enclosed
  • One Australian female chassis socket Output. Extra Outlets Optionally Available
  • All units are double wound. Primary to Secondary fully Isolated
  • Earthing is NOT carried to Outlet Socket, hence Isolated and Floating
  • Incorporated soft start circuitry to eliminate inrush current problems during turn on available
  • All enclosures are metal, with white powder coat finish

Note: RCD Testing: Please note the nature of an isolation transformer means the earth is not carried through. 
You will need this special modified Unit for elcb/ RCD testing

We also provide custom Isolation transformers up to 500 KVA for a quote on custom units

We also make custom 1/3 Phase Isolation transformers 

Additional information

WeightN/A
DimensionsN/A
Product Rating

300VA, 600VA, 1000VA, 2000VA, 4000VA

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Item 1 – Cast Resin type Isolation Transformer

HV Winding 1

LV Winding 1

LV Winding 2

Rated power

kVA

315

1250

1250

Rated voltage

kV

33

0.48

0.48

Frequency

Hz

50

Off circuit tapping links

%

±2.5%, +-5%

Nil

Nil

Connection

Delta

Star

Star

Vector group

Dy11y11

Insulation level (Maximum BIL/AC)

kV

150/70

10/3

10/3

Winding material

Aluminium cast windings in quartz filled self-extinguishing epoxy resin

Aluminium cast windings in quartz filled self-extinguishing epoxy resin

Aluminium cast windings in quartz filled self-extinguishing epoxy resin

Type of winding

Vacuum Resin Cast

Vacuum Resin cast

Vacuum Resin cast

Standard

AS 60076-11, AS 2374

Installation

Indoor

Degree of protection

IP22

Type of cooling

AN/AF

Installation altitude

< 1000 a.m.s.l

Climatic/environmental

And fire behaviour class

E2-C2-F1

test