Electrical Motor Installation Details

Here you will learn about Electrical Motor Installation Details, Belowground Motor Installation Details, Above Ground Motor Installation Details. BELOWGROUND MOTOR …

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TESTING AND COMMISSIONING OF AC UPS SYSTEM

The main points and Keywords to be discussed in this article are testing and commissioning of ac ups system. ups system electricala. Inverter. Static transfer switch overload test. Inverter overload test.

TOOLS AND EQUIPMENT TESTING AND COMMISSIONING OF ELECTRICAL EQUIPMENT

Tools and equipment should be in good condition for use in the construction area. All test equipment required to be calibrated not more than 3 months before the date of test. All equipment calibration “original” certificates should be presented at site.

These includes but not limited to the following:

  • Common Hand Tools
  • Digital Volt-ohm Meter
  • 500/5000V MEGGER
  • Current Tester (Multi-Amp or equal)
  • Torque Wrench
  • Ductor (Micro ohm Meter)
  • Protective Relay Test Set
  • Thermometer
  • Oscilloscope
  • Load Bank
  • Manufacturer’s Instruction Manuals
  • Personal Protective Equipments
  • Timing Tester
  • Hydrometer
  • Relay testing set
  • DLRO

PROCEDURES FOR TESTING AND COMMISSIONING OF AC UPS SYSTEM

GENERAL PREPARATORY WORKS

  • COMPANY shall appoint qualified employees as their ‘competent persons’. Such persons shall be capable of working safely and shall be knowledgeable on the precautionary techniques, personnel protective equipment, shielding and insulating materials and tools.
  • All permanent and consumable materials shall prepare prior to testing.
  • Manpower, equipment, tools and other logistics shall be prepared and ready for installation.
  • Prepare the workplace such as barricading the area and housekeeping.
  • Review the AC/DC control schematic of the disconnect switch assembly. All connection diagram vendor and IFC drawing shall be available in the work area.
  • Review all technical specifications, operating manuals and previous inspection data if appropriate.
  • Electrically Hazardous Task Plan / Permit shall be completed and signed before any work proceeds.

AC UPS SYSTEM ELCTRICAL COMMISSIONING

Visual Inspection

  • Compare equipment nameplate information data with actual operating conditions, drawings and specifications.
  • Inspect the physical condition of all electrical and mechanical components for deterioration and missing, broken, or loose parts, etc. This includes the inspection of insulators, insulation materials, sign of overheating or electric sparks and door fastener functionality.
  • Check for proper wiring and terminal connection are done.
  • Check that all grounding is securely connected (including star neutral points).
  • Check cleanliness of interior of cubicle, clean using manufactures approved method and material.

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TESTING AND COMMISSIONING OF ELECTRICAL EQUIPMENT DC UPS

The main keywords for this article are testing and commissioning of electrical equipment, ups test, commissioning and testing and commissioning of dc ups system. 

TOOLS AND EQUIPMENT TESTING AND COMMISSIONING OF ELECTRICAL EQUIPMENT

Tools and equipment should be in good condition for use in the construction area. All test equipment required to be calibrated not more than 3 months before the date of test. All equipment calibration “original” certificates should be presented at site.

These includes but not limited to the following:

  • Common Hand Tools
  • Digital Volt-ohm Meter
  • 500/5000V MEGGER
  • Current Tester (Multi-Amp or equal)
  • Torque Wrench
  • Ductor (Micro ohm Meter)
  • Protective Relay Test Set
  • Thermometer
  • Oscilloscope
  • Load Bank
  • Manufacturer’s Instruction Manuals
  • Personal Protective Equipments
  • Timing Tester
  • Hydrometer
  • Relay testing set
  • DLRO

PROCEDURES TESTING AND COMMISSIONING OF ELECTRICAL EQUIPMENT

GENERAL PREPARATORY WORKS

  • COMPANY shall appoint qualified employees as their ‘competent persons’. Such persons shall be capable of working safely and shall be knowledgeable on the precautionary techniques, personnel protective equipment, shielding and insulating materials and tools.
  • All permanent and consumable materials shall prepare prior to testing.
  • Manpower, equipment, tools and other logistics shall be prepared and ready for installation.
  • Prepare the workplace such as barricading the area and housekeeping.
  • Review the AC/DC control schematic of the disconnect switch assembly. All connection diagram vendor and IFC drawing shall be available in the work area.
  • Review all technical specifications, operating manuals and previous inspection data if appropriate.
  • Electrically Hazardous Task Plan / Permit shall be completed and signed before any work proceeds.

DC UPS SYSTEM

Visual Inspection

Compare equipment nameplate information data with actual operating conditions, drawings and specifications.

Inspect the physical condition of all electrical and mechanical components for deterioration and missing, broken, or loose parts, etc. Complete visual inspection of the battery system as follows.

  • Broken or missing flame arresters and caps.
  • Sediment in the bottom of batteries.
  • Cracked, swelled, or damaged battery cases.
  • Abnormal battery plate appearance.
  • Visible corrosion on battery terminals or battery rack.
  • Normal excessive ambient temperature in battery room.
  • Normal excessive ambient humidity in battery room.
  • Normal excessive dust or dirt in battery room.
  • Wet floor around batteries and electrolyte on tops of batteries.

Inspect for battery and racks are properly installed.

Check for proper battery terminal and grounding connection are done.

Tighten main current carrying part (terminal connection, etc.) to the manufacture torque specification. If such information is not available, tighten in accordance with SA-P-000 page 4. Ductor test may also be used to confirm proper connection after initial torque test has been completed.

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Battery Charger and Rectifier Test Procedure

This procedure describes the methods and requirements in the start-up and commissioning of the Rectifier / Charger System of UPS. The main keywords for this article are battery charger, rectifier, Battery charger test procedure,  Load Test Rectifier, Load Test charger.

GENERAL REQUIREMENTS

✓ Each item should be checked in accordance with the requirements in specification, drawings and manufacturer’s instruction and technical data as required to verify completeness of installation.
✓ All necessary verification activities for the equipment should be completed before implementation of start-up and commissioning.

SAFETY PRECAUTIONS

✓ Start-up and commissioning must be carried out by a qualified engineer, trained by the manufacturer or one of its agents. Failure to observe this will invalidate any future claims.
✓ The rectifier/ charger will contain potentially lethal voltages at all times once power is applied from the main distribution panel. Safety tagging and clearance procedure should be utilized in the start-up and commissioning.
✓ Clear the area of all unauthorized personnel and install barricades if possible to restrict entry of unauthorized persons.
✓ Tag the power disconnect switches on the distribution panel board which supplies power to the rectifier/ charger before working on the equipment.

Test Equipment & Tools Rectifier / Charger System

✓ Digital Multimeter.
✓ Phase Sequence Meter.
✓ Temperature Measuring Equipment.
✓ Load bank.

What Inspection need to be done.

✓ Inspect all wires and conductor insulation for damage.
✓ Inspect all wiring connections to the capacitor banks. Re-tighten if necessary.
✓ Check all terminal and breaker connections for tightness. Re-tighten if necessary.
✓ Remove and foreign objects from the components or the interior area of the unit. Make sure air passages are clear and free of debris. Re-tighten if necessary.
WARNING:
HAZARDOUS VOLTAGES ARE PRESENT IN THE EQUIPMENT THROUGHOUT THE MAJORITY OF THE START-UP PROCEDUR.
PROCEED WITH CAUTION.
✓ Carry out a thorough visual inspection of the equipment. Check the security of all cable terminations and ensure that all electrical connectors, plugs and sockets are correctly located and firmly fitted.

START- UP:  CAUTION!!!!
It is assumed that the installation is complete, the system has been personalized and set-up accordingly.

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OUTDOOR LIGHTING AND ELECTRICAL OUTLET INSTALLATION AND TESTING

In this topic main keywords to be discussed and outdoot lighting, electrical outlet, wiring an outlet, light pole, electrical outlet installation, lighting.

 

OUTDOOR LIGHTING & CONVENIENCE ELECTRICAL OUTLET INSTALLATION AND TESTING

TOOLS AND EQUIPMENT ELECTRICAL OUTLET INSTALLATION AND TESTING

Tools and equipment needed should be in good condition and must be checked by Supervisor / Safety Engineer prior to use in the construction area. These includes but not limited to:

  • Man lift.
  • Boom Truck
  • Crane
  • Welding Machine
  • Multi-meter
  • Ladders
  • Insulation Tester
  • Electric Power Tools (i.e. drill with bits, grinder)
  • Termination Tools
  • Lux Meter
  • Knock out Punch Machine (Hydraulic)
  • Hydraulic Pipe Bender
  • Cut off wheels (speed cutter)
  • Tripod vise
  • Threading machine
  • Torque Wrench
  • Drill Press Machine (Magnetic Mounted)
  • Claw bar
  • Measuring Tape

All tools utilized in a classified area should be intrinsically safe and suitable for hazardous areas.

LIGHTING IN PLANT / LIGHT POLE 3 MTR LONG WITH CABLING WORKS (Light Pole at Platforms and Railings)

  • Expedite materials for lighting and equipment supports from lay down yard to job site utilizing boom truck for loading and unloading.
  • QC visual inspection and acceptance for lighting equipment including material supports.
  • Erect scaffoldings outside railings and underneath grating platform.
  • Fabrication of light pole 2″Ø painted HOG steel pipe sched 40.
  • Fabrication and installation of supports for light pole at handrail and base using angular/unistrut channel.
  • Primer, finishing and touch up paint for every cutting, grinding and drilling edge of trays and conduits.
  • QC inspection and acceptance for light pole and supports prior to installation.
  • Light pole wiring an outlet and lighting fixtures assembly and installation.
  • Light pole wiring an outlet termination, splicing with proper terminal lugs, heat resistance insulation sleeve and name plate installation.
  • QC inspection and acceptance for 3.0 meters long pole.

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OIL LEAK REPAIR OF TRANSFORMER

Main keywords are for this article: Oil leak repair transformer, Oil leak sealer

TOOLS AND MATERIALS

  • Replacement New Radiator with set of New Gasket.
  • Clean empty plastic drum.
  • Clean Plastic Flexible Hose
  • Drain Valve Fitting
  • Electric Oil Pump
  • NOT Materials for leak verification.

OIL LEAK REPAIR TRANSFORMER

GENERAL PREPARATORY WORKS

Manpower, equipment, tools and other logistics are ready and prepared for rectification.
Rectification of damaged radiator shall be in accordance with vendor procedures as stated in this article.

ISOLATION OF DAMAGED RADIATOR

  • Close the radiator butterfly/ shut-off valve (Upper & Lower) to isolate the oil volume within the radiator.
  • Full volume of oil in the radiator shall be drain out.
  • Loosening the responsible nuts and washers for the radiator flanges will set it free and ready for detachment.
  • With lifting equipment (crane), damaged radiator to be detached from transformer main tank.

INSTALLATION OF REPLACEMENT NEW RADIATOR

  • Installed the new radiator to the transformer with the lifting equipment.
  • Open the shut-off valve (oil from transformer tank to fill the space in the radiator).
  • Air to be bled out totally form the radiator through the upper fill plug until oil seeps out.
  • Filled oil (removed transformer oil from existing radiator) to the transformer main tank.

 

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