SINGLE PHASE

SINGLE PHASE
1 KVA TO 20 KVA

  • Isolation transformers provide galvanic isolation and are used to protect against electric shock, to suppress electrical noise in sensitive devices, or to transfer power between two circuits which must not be connected. ... Suitably designed isolation transformers block interference caused by ground loops.

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Features

Isolation Transformer

  • A transformer is a static electrical device which transfers power from one voltage level to another while keeping the frequency same. And, if the primary and secondary windings are coupled through a common iron core, they are considered as the Isolation Transformer.
  • The secondary winding, as usual in transformers, is physically and electrically isolated from the primary winding.
  • There is no literal electrical link between the two windings. They are magnetically coupled, not electrically linked.
  • This “line isolation” is a very desirable characteristic for various applications. As there is no electrical connection between the load and source, the transformer behaves like a filter between the two windings by segregating them from each other.
  • The Isolation Transformers significantly block the voltage spikes, switching transients and noise that originate in the supply side from being getting transferred to the load side.
  • Some isolation transformers are built with a turn ratio of 1:1. Such transformers are exclusively built to have the same input and output voltage and are used for isolation only.
  • All transformers except autotransformers provide isolation.
  • When used with a switching power supply, an Isolation Transformer prevents higher-order harmonic signals from degrading the performance of adjoining circuitry.
  • It is especially crucial in computers or other equipment incorporating microprocessors. Improper isolation can cause interference to other functions of the system and can cause excess ripples at the output voltage waveform.

Applications

  • Data Centres
  • Industrial PLCs
  • Emergency Devices (Lights/Alarms)
  • Electro-Medical Devices.
  • Telecommunication Devices
  • Industrial Applications.
  • CNC Machines

Specification

Input Voltage    230 Volt AC
Output Voltage    230 / 110 Volt AC
Frequency    50 Hz.
Leakage Current   < 20 Micro Amps (μA)
Regulation   2-4%
Coupling Capacitance    Less than 0.01 Pf
Noise Level   45 dB / 65 dB or as required
DC Galvanic Insulation    Over 1000 Mega Ohms between any winding Or winding to ground
Type of Cooling    Natural Air Cooled /     Oil Cooled
Ambient temperature    0 ºC – 55 ºC
Power Factor   0.75 Lag to lead
VI Electric strength    2500 V AC for 120 sec.
Insulation Resistance    More Than 100M Ohms.
Class of Insulation    Class ‘F’ or 'H'
Losses    3% – 5%