CT PT Primary Injection test DOC

Title	CT PT Primary Injection test
Author	R. Venkatesan
Pages	10
File Size	205 KB
File Type	DOC
Total Downloads	76
Total Views	208

Summary

Durga Site : M/S CHESLIND TEXTILES LTD Test Report Switchgears B.MADUGANAPALLI, Page No: 1a BAGALUR – 635 103. HOSUR TALUK. LOCATION : OUTDOOR Date: 14 th January 2016. FEEDER NAME : 33KV YARD INCOMER SERIAL NUMBERS : R PHASE - A 16673 MAKE : INTRANS ENGG. Y PHASE - A 16674 CORE 1 : CT RATIO : 150 /...

Description

Durga Switchgears Site : M/S CHESLIND TEXTILES LTD B.MADUGANAPALLI, BAGALUR – 635 103. HOSUR TALUK. Test Report Page No: 1a LOCATION : OUTDOOR Date: 14th January 2016. FEEDER NAME : 33KV YARD INCOMER SERIAL NUMBERS : R PHASE - A 16673 MAKE : INTRANS ENGG. Y PHASE - A 16674 CORE 1 : CT RATIO : 150 / 1 AMP B PHASE - A 16675 15 VA, CL 1 CORE 2 : CT RATIO : 150/1 AMP 15 VA, CL 5P10 ILV : 36/ 70 / 170 KV (Insulatin Level Viltage PRIMARY INJECTION TEST REPORT FOR CURRENT TRANSFORMER PRIMARY TERMINAL TIGHTNESS : SATISFACTORY SECONDARY TERMINAL TIGHTNESS : SATISFACTORY POLARITY TEST : OK RATIO TEST: CORE 1 - METERING CORE 2 - PROTECTION IR Value Test: Primary to Earth – 500 M Primary to Core 1- 900 M Primary to Core 2 - 600 M Core 1 to earth – 500 M Core 2 to earth - 500 M Current Injected in %age current in Amps Calculated secondary current in Amps Actual secondary current in Amps R-Phase Y-Phase B-Phase 20% 30 0.20 0.19 0.19 0.21 40% 60 0.40 0.40 0.40 0.40 60% 90 0.60 0.61 0.61 0.61 80% 120 0.80 0.81 0.79 0.79 100% 150 1.00 0.99 1.00 1.01 Current Injected in %age current in Amps Calculated secondary current in Amps Actual secondary current in Amps R-Phase Y-Phase B-Phase 20% 30 0.20 0.21 0.20 0.21 40% 60 0.40 0.39 0.39 0.40 60% 90 0.60 0.61 0.60 0.60 80% 120 0.80 0.81 0.80 0.80 100% 150 1.00 1.00 1.00 0.99...