Project: Consultant : MEP Contractor: PREPARED BY: DORMAN SMITH SWITCHGEAR - DUBAI REVIEWED BY CONSULTANT : Page 1 of 15

Transcription

1 PRCEDURES FR RUTINE TESTING F CAPACITR BANKS Consultant : MEP Contractor: Project: PREPARED BY: DRMAN SMITH SWITCHGEAR - DUBAI NAME: REVIEWED BY CNSULTANT : NAME: SIGNATURE: SIGNATURE: Page 1 of 15

2 Table of Contents Description SCPE PURPSE DEFINITIN RESURCES TEST INSTRUMENT MANPWER MANUFACTURER / VENDR / SPECIALIST LIAISN REFERENCE LIST F RUTINE TESTS TESTING METHDLGY RUTINE TESTS Page 2 of 15

3 1.0SCPE This Method Statement covers the routine testing of the Capacitor Banks to be supplied for in compliance with the specified tolerance and limitations outlined with IEC / EN standards, guidelines and with reference to project specifications, Dorman Smith test criteria / instructions and requirements of BSEN and Utility requirements 2.0PURPSE This procedure provides the methodology that will be used for routine testing of the LV Main power distribution boards / Sub-main distribution boards / Motor Control Centres as per the project specifications, manufacturer recommendations, relevant standards, and approved drawings. This procedure is a guideline and includes an internal routine test checklist to record & complete routine testing of the Equipment/Panel. 3.0DEFINITINS Main Consultant Contractor MS QAQC Lab. Tech TITLE DEFINITIN Method Statement Quality Assurance Quality Control 3 rd Party Laboratory Technician Page 3 of 15

4 4.0Resources 4.1 Measuring and Test equipment Digital Multifunction meter Insulation Resistance Tester (Megger) HV Test Kit Torque Wrench Electrician Hand tools 4.2 Personnel involved: Consultant (WSP) Contractor Representatives (TGEM) Manufacturer representatives.(ds) QA/QC Engineer. (DS) 4.3 Manufacturer / Vendor / Specialist Liaison Dorman Smith Switchgear Ltd. (DS) 4.4 Reference: Approved Shop Drawings Test equipment calibration certificates Internal Routine test certificate format (Annexure-1) Routine test checklists & Test Formats (Annexures 2-5) 4.5 List of Routine tests Visual Inspection Mechanical Functional test Electrical Functional test All internal pre-inspection checks & records carried out and maintained as per Internal Routine test format - Annexure-1. Tests carried out in the check lists being part of this document is for verification and record of pre-dispatch tests carried out in the presence of the Client / Contractor and cover test requirements of the BSEN / IEC standards Page 4 of 15

5 5.0TESTING METHDLGY 5.1General Requirements Ensure that all equipment and materials are as per approved shop drawing prior to the commencement of any testing All materials and documentation relevant to this testing works shall be checked by the responsible personnel prior to the commencement of testing activities Before any item of equipment is accepted for testing a visual inspection will be carried out on that equipment. Where defective equipment is found the same is to be reported to the concerned authority Test power supply availability Ensure all test equipment is calibrated. 5.2 Visual Check of Distribution Boards: As per Visual Inspection Checklist Annexure Mechanical Functional Test: As per Mechanical Function Checklist Annexure Random Torque test on Bus Bar Joints Annexure Electrical Functional test: As per Electrical Function Checklist Annexure - 5 Page 5 of 15

6 ANNEXURE - 1 INTERNAL RUTINE TEST DCUMENT Documents Attached : Format of Internal Routine test format Page 6 of 15

7 ANNEXURE - 2 Test: Visual Inspection Documents Attached : Check list for Visual Inspection Page 7 of 15

8 VISUAL INSPECTIN Equipment Type / Ref : Contractor : I Visual Inspection Test Test Description bservations / Results 1 Enclosures & General Arrangement of Capacitor Banks a Form of Construction as per approved drawing K NT K N/A b IP rating as per approved drawing K NT K N/A c General arrangement / Dimensions / No. of sections as per approved drawings K NT K N/A d Ratings / Mounting arrangements of CT s / Metering as per approved drawings K NT K N/A e Main labels / designation labels / Danger labels as per requirements K NT K N/A f Conformance of switchboard / panel board to distribution system rating K NT K N/A requirements Voltage / frequency / power g Neatness of Metal work and cut outs, paint finish K NT K N/A h Check door locking provisions / panel covers / enclosure ventilations K NT K N/A i Check lifting provisions / mounting plinth K NT K N/A J Check interlocking limit switch provisions on removable doors K NT K N/A 2 Bus bar System a Confirm main bus bar sizes and interconnections sizes as per approved K NT K N/A drawings b Check vertical bus bar sizes and interconnections as per approved drawings K NT K N/A c Check identification of color codes on phases, earth and neutral K NT K N/A d Protection shrouds / barriers against accidental access of LIVE parts K NT K N/A e Conformance of segregation to Form of construction as per requirement K NT K N/A f Check bus bar supports K NT K N/A g Check earthing bus bars / Neutral bus bars K NT K N/A 3 Incoming & utgoing Devices / Capacitors / Reactor / Control gear a Switchgear Devices mounting location as per approved drawings K NT K N/A b Switchgear Devices / Rating / Type / Trip unit as per approved drawings K NT K N/A c Check Incoming cable provisions (cable space) / bus bar extension links / K NT K N/A protective shrouding d Controlgear & Reactors, HRC Fuses, Capacitor Rating / Type as per approved K NT K N/A drawings e Check rotary handles / racking handles K NT K N/A f Check Identification / Designation / Danger labels K NT K N/A g Check cable glanding facility and gland plates (Al. / GI) as required K NT K N/A Page 8 of 15

9 h Check provisions for Neutral and Earth 4 Metering & Indications a Check mounting arrangements / front facia arrangements of meters / switches / K NT K N/A control devices / PF Regulators b Check CT provisions / mounting / control fuse provisions K NT K N/A c Check Indications K NT K N/A 5 Power & Control wiring K NT K N/A a Control voltage as per approved drawings K NT K N/A b Size and identification of control wires K NT K N/A c Terminal block provisions for control wiring / BMS provisions / Inter-panel wiring K NT K N/A / Identification of control cables d Check control cable dressing / routing of cables K NT K N/A Tests Conducted by Date Name : Signatur e : Page 9 of 15

10 ANNEXURE - 3 Test: Mechanical Functional Test Documents Attached : Check list for Mechanical functional test. Page 10 of 15

11 MECHANICAL FUNCTINAL TEST Equipment Type / Ref : Contractor : II Mechanical Functional Test Test Test Description bservations / Results 1 Enclosures A Checking of hinge operation, alignment of doors and door closing. K NT K N/A B Check door earthing cable and termination K NT K N/A C Check locking provisions / keys for doors K NT K N/A D Check transport joints of sections and busbars K NT K N/A E Check limit switch operation on removable doors K NT K N/A 2 Bus bar System A Check transport interconnection of bus bars and random torque tightness (record values) B Check all segregations and protective shrouds are in place and secured K K NT K N/A NT K N/A 3 Incoming & utgoing Devices / Capacitors / Reactor / Control gear A Check manual spring charging mechanism for ACB s (if applicable) K NT K N/A B Check racking mechanism for drawing out ACB (if applicable) K NT K N/A C Draw out ACB and check position interlock in Connected-Test-Isolated K NT K N/A positions. (if applicable) D Check the mechanical N-FF function for ACB. (if applicable) K NT K N/A E Check N-FF operation of all Non-Auto MCCB / Isolators extended K NT K N/A rotary handles and door interlock features. F Check mechanical N-FF-TRIP functions for MCCB devices. K NT K N/A 4 Metering & Indications A Check mechanical operation for all selector switches, pushbuttons K NT K N/A B Check all pointers in analog measurement instruments are set to 0 K NT K N/A C Check PF Regulator mounting K NT K N/A D Check kwh wiring / mounting and viewing provisions K NT K N/A Tests Conducted by Date : : Name : Signature Page 11 of 15

12 ANNEXURE - 4 Test: Random Torque Test on Bus bar Joints Documents Attached : Bus bar tightening torque test Record. Page 12 of 15

13 RANDM BUS BAR TIGHTENING TRQUE TEST RECRD Thread size Torque Required N-M Tested Torque N-M Remarks M M M M Remarks (if any) Tests Conducted by Date : Name : Signature : Page 13 of 15

14 ANNEXURE - 5 Electrical Functional Test Documents Attached : Check list for conducting Electrical Functional Test Page 14 of 15

15 ELECTRICAL FUNCTINAL TEST Equipment Type / Ref : Contractor : ELECTRICAL FUNCTINAL TEST Test Test Description bservations / Results 1 Service conditions A Check supply system parameters with a digital multi meter on the incoming cable K NT K N/A termination end.(voltage / Frequency / phase sequence) B Check auxiliary supply availability. K NT K N/A C Check fuses continuity and ensure all protection in place on auxiliary circuits K NT K N/A D Check limit switch electrical operation on removable doors K NT K N/A 2 Incoming & utgoing Devices / Capacitors / Reactor / Control gear A Manually charge spring for closing mechanism of ACB s / or through motor K NT K N/A mechanism if provided B Check and close the incoming device. Check supply availability on outgoing side of K NT K N/A incoming device C Check and close the outgoing devices. Check supply availability on outgoing side of K NT K N/A device. D Manually switch FF / TRIP all devices and check loss of supply on outgoing side of K NT K N/A all devices. E Close all devices to energize switchboard on completion of above sequence K NT K N/A F Check operation of capacitor contactors via manual switching operations of PF K NT K N/A Regulator G Check remote signalling (Volt free contact initiation) as applicable in devices K NT K N/A 3 Metering & Indications A Check Voltmeter / MFM readings direct / PF regulator etc via selector switches on K NT K N/A front facia of panel. B Check provisions for communication in metering as applicable K NT K N/A C Check all indication lamps K NT K N/A Tests Conducted by Date : Name : Signature : Page 15 of 15