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Ultra Isolation Transformer

Ultra Isolation Transformer


Regulation 2-4% for 100% change in current @ unity P.F.
Connections Delta/Star for 3 phase
Operating Power Factor 0.75 lagging to 0.75 leading
Dielectric Strength 2500 V for 60 seconds
Resistance Greater than 1000 Mega Ohms
Coupling capacitance 0.1 pf for 100dB 0.05pf for 120dB
Leakage Current: Less than 20 micro Amps.

Salient features :

  • Symmetrical characteristics allow noise attenuation from sides.
  • No need for extra filter circuits.
  • Can be used where different ground potential exists or the ground of the equipment cannot be earthed.
  • No impedance matching required.

Transformer Applications :

  • Protect the Computers, CNC Machines and Telecommunications equipment from damage due to electrical noise, spikes etc.
  • If ground potential of system units are different from each other and are exposed to the effects of instability at high frequencies.
  • If ground of the equipment cannot be earthed.
  • When no slightest current leakage is permitted in the equipment. Especially for computers and CNC controls less than 100 micro Amps is only permitted.
  • To protect against strong lighting, impulse noise, bus short-circuit, accidental discharge of capacitors etc. When no slightest current leakage is permitted in the equipment.
  • When multiple Noise Cut-off transformers are used, the suppression effects increase in proportion. Therefore, the effects of cascading Noise Cut-off Transformers is remarkable.
  • To shield large number of electronic equipment which individually also are producing different types of electrical noise at a common busbar typically CNC machines, Drives, Hardening equipment etc. The use of NCT, being bidirectional, prevents damage due to circulating noise interference within them.

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Technical Specification

  Input Output Rating Common Mode Attenuation
Single Phase 110/220V 110/220V 0.4, 1, 2, 3, 5, 8, 10, 15, 20, 25 120dB
Three Phase 415V* 415V 1, 2, 3, 6, 9, 5, 25, 30, 40, 50, 60, 75, 100, 125, 150, 200, 225, 250 & 300 100dB Standard & 120dB on request

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