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TRANSFORMERS

ISOLATION TRANSFORMERS:

   Isolation transformer is one that contains two windings Primary and Secondary winding, that are separated from each other but wound on the same Iron core.

The secondary that governs the output is, in this manner, separated from the input. Input and output are totally independent of each other except for the magnetic linkage between the two.
     


The results of an Isolation transformer are:

  • It provides a perfectly balanced neutral at 'zero' potential and neutral can be used by grounding it.
  • The supply of the output is free from all surges/spikes and so called electrical noise, which predominantly is present on the input side.
  • Since the output is totally isolated from the input, any short circuits or faults on the primary side are not reflected on the secondary, thus avoiding damage to the sensitive electrical equipment.
  • Due to Delta/Star three limbed construction the input currents get fairly balanced even though there is unbalancing of loads on the output.

 

TECHNICAL SPECIFICATION ISOLATION TRANSFORMER

CAPACITY 1KVA TO 500KVA-3PHASE
INPUT  VOLTAGE 415V-3PHASE / 230V-1PHASE
OUTPUT  VOLTAGE 415V-3PHASE/200V-3PHASE/230V-1PHASE
COOLING FORCED AIR COOLING
OPERATING TEMP 50 DEGREE C
REGULATION BETTER THAN 2%
OPERATING FREQUENCY 50Hz +/-3Hz
POWER FACTOR 0.8PF
DIELECTRIC STRENGTH 2500V AC FOR 120 SEC
NOISE NOISE/SPIKE SUPPRESSION MORE THAN 135 DB.
INSULATION RESISTANCE 3000 MOHM INSULATION RESISTANCE
HIGH GRADE INSULATION CLASS “F”
LAMINATION CRGO
LEAKAGE CURRENT LESS THAN 100 MicroAmps
OPERATING FREQUNCY 50HZ+/-3%
TERMINATION TERMINAL BLOCK FOR INPUT & OUTPUT
METERING VOLTMETER  WITH PHASE SELECTOR SWITCH
ENCLOSER GI
POWDER COATING SIEMENS GREY
I T  STANDARD AS PER IS:2026.

 
Key Features of Isolation Transformer

  • High efficiency, high reliability and accuracy. Compact, rugged in construction, free standing, floor mounting model and housed in sturdy metal casing with sufficient ventilations.
  • Double wound with copper conductor with low coupling capacitance to isolate the voltage spikes and noise from the mains.
  • High insulation values.
  • Suitable for use with modern sophisticated micro processor based equipment, CNC machines, computers and other Industrial processing.
  • To withstand the ambient temperature up to 55 centigrade and 95% humidity.