Earthing Calculation Software Free Download

This is a test format for 13.8 kv switchgear 1. GENERAL DATA AND INFORMATION Panel No: Designation No.: A.Q1 Manufacturer: ABB Rated Voltage: 24 KV Type No.: VD4/P 24.25.25 Rated Aux.

Earthing Calculation Software Free DownloadEarthing Calculation Software Free Download

DESIGN OF GROUNDING SYSTEMS IN SUBSTATIONS BY ETAP INTELLIGENT SOFTWARE N.M. Tabatabaei 1 S.R. Mortezaeei 2 1 Electrical Engineering Department, Seraj Higher Education Institute, Tabriz, Iran, n.m.tabatabaei@gmail.com 2 Electrical Engineering Department, Azarbaijan University of Tarbiat Moallem, Tabriz, Iran. Jan 25, 2018 - Feeder voltage drop in excel free downloads Electrical MS Excel Spreadsheets (Calculations of cables, voltage drop etc.) Subscribe to free job,.

Voltage: 125 VDC Serial No.: 1VC1AL000 Rated Current: 2300 A 2. MECHANICAL CHECK AND VISUAL INSPECTION ITEM DESCRIPTION CHECKED 1 Inspect for physical damage / defects. 2 Check nameplate information for correctness 3 Check tightness of all bolt connections (Torque Wrench) 4 Check racking mechanism for alignment and Smoothness of operation 5 Check quality of paint work 6 Check proper operation of all mechanical interlocks 7 Check for correct breaker position indications 8 Check for correct spring status indication 9 Check all wiring correctness as per approved drawings 10 Check that all grounding are securely connected 3. Convert chessbase to pdf. ELECTRICAL TESTS 3.1 Function Test.

ITEM DESCRIPTION CHECKED 1 Local control, alarm and indications 2 Remote control, alarm and indications 3 Check correct operation of all auxiliary “a” and “b” switch contacts. 4 Check breaker operation counter 5 Check trip free and anti-pumping circuit 6 Check electrical operation of breaker racking tracks. (interlocks and limit switches). 3.2 Insulation Resistance Measurement: TEST VOLTAGE CONDITION DURATION READING (TΩ) 5KV CB CLOSE: R-Y+B+GROUND 1 MIN CB CLOSE: Y-R+B+GROUND 1 MIN CB CLOSE: B-R+Y+GROUND 1 MIN CB OPEN: R1+Y1+B1-R2+Y2+B2+GROUND 1 MIN 3.3 Contact Resistance Test: Current injected 100A CONDITION R-PHASE (µΩ) Y-PHASE (µΩ) Y-PHASE (µΩ) CB CLOSED Test Kit: Megger & CPC 100 3.4 Breaker Timing Set TEST RΦ (in mSec) YΦ (in mSec) BΦ (in mSec) Closing Operation Closing Coil Open Operation Tripping Coil 1 Open Operation Tripping Coil 2 Test Kit: EGIL.

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