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VF TRANSFORMER
SPECIFICATION NO. : IRS : TC 22-76
DESCRIPTION :
V.F And Signaling transformer used for derivation and termination of underground telecommunication cable with various impedance ratio such as – (i) 1120:1120 (ii) 470:1120 (iii) 1120:600.Other impedance as per requirement of customer. The transformers are enclosed in rectangular M.S. Box and sealed.
TECHNICAL SHEET :
CHARACTERISTICS: Terminating & Tapping Transformer For V.F.side Circuits excluding telegraph
Impedance Ratio: 1120:1120±2%
Insulation Resistance with 500V Winding-Winding-Case: 10,000 MΩ
Dielectric Strength Winding-Winding-Case: 2KV(rms) FOR 1 min.
Return Loss: More than 20dB
Insertion Loss: Not more than 0.6dB
Bridging Loss with secondary open: Not more than 0.015dB
Attenuation Distortion: Within±0.1dB
Winding Balance: More than 60dB
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