13/14 MAMATA SOCIETY, SONEGAON

NAGPUR - 440 025

09:30 AM - 6:00 PM

Monday to Saturday

Isolation Transformer
isolation-transformer

Any Double Wound Transformer is inherently an ISOLATION TRANSFORMER as the primary and secondary are isolated from one another through insulation.  However, modern   machines and   systems need a truly isolated, clean and stable power requirement.  This is ensured by an Ultra Isolation Transformer (UIT).  It provides for total electrical and electro static isolation with most effective screening of spikes, surges and transients.  Further, it gives a true isolated local neutral and dedicated earth which are very essential for modern machines.

Ultra Isolation Transformer attenuates common mode noise and transverse mode noise and provides for noise or interference free power.  In principle, UIT only transfers 50 Hz power by transformer action through mutual inductance.  It prevents transfer of RF and HF disturbances with extensive insulation between primary and secondary.  The insulation levels withstands HV breakdown strength of 2.5 KV and gives a DC galvanic isolation of above 1000 mega ohms.

TECHNICAL SPECIFICATION:

1.  RATING : 40  TO  1000  KVA& 1 TO 20KVA 1 Phase
2.  INPUT  VOLTAGE : 415 V AC  +/-  10%
3.  OUTPUT  VOLTAGE : 415 V AC, 3  PHASE
4.  INPUT-OUTPUT

VOLTAGE  RATIO

:  1 : 1
5.  TYPE :  DELTA/ STAR
6.  COOLING :  AIR  COOLED
7.  COMMON  MODE

NOISE  ATTENUATION

:  100 DB
8.  COUPLING  CAPACITENCE :  0.01  P.F
9.  AMBIENT :  0-45  DEG  CENT, 90% R.H
10. D.C GALVANIC ISOLATION : GREATER  THAN 1000 MEGA

OHMS

11. DIE  ELECTRIC  STRENGTH :  2500V  AC  FOR 60 SEC.
12.  REGULATION :  2 TO 4% FROM NO LOAD TO

FULL LOAD AT  UNITY

POWER  FACTOR

13. LOAD  POWER  FACTOR :  0.75 TO + 0.75
14  LINE  LEAKAGE CURRENT :  LESS THAN 20 MICRO AMPS
15. TERMINATIONS :  ALL  INPUT AND OUTPUT

TERMINAL  BROUGHT OUT

ON A TERMINAL BOARD

THROUGH STUDS OF

ADEQUATE  RATING

16. CABLE  ENTRY :  ON THE SIDES AT THE TOP
17.  ENCLOSURE :  ENCLOSED IN SHEET  METAL

STRUCTURE OF ADEQUATE

THICKNESS WITH LOUVRES

FOR VENTILATION AND

WHEELS  FOR MOBILITY

IP ENCLOSURE PROTECTION FOR ISOLATION TRANSFOEMER:

ARMO Isolation Transformer conforms to IP-30 protection as per IS:2147.

DETAILS OF EARTHING FOR ISOLATION TRANSFORMER

It is recommended that every Isolation Transformer should have its own grounded earth, complete in itself.

CONSTRUCTIONAL FEATURES OF ISOLATION TRANSFORMERS

Isolation Transformer shall invariably be in one air cooled section.

The enclosures are constructed from MS angles and CRCA MS sheets of best quality of reputed make only.

The professional painting process comprises of

  1. 7 Tank Pre-Treatment,
  2. Primer Coating and
  3. Two Coats of final finish paint or POWDER COATING.