Course Agenda (Course Code 400)

UPS Training Course

Course Code 400

Course Agenda

Day 1

8:00 – 8:15: Session One Part A:  Welcome and Introduction

 8:15 – 8:45: Session One Part B:  Brief Overview of a UPS

  • What is a UPS System?
  • Components of a UPS System?

8:45 – 11:00: Session Two: Batteries

10:00-10:20: Break

  • Flooded Lead Acid Batteries
  • Valve Regulated Lead Acid  ( VRLA )
    • Absorbed Glass Mat (AGM) –
    • Gelled Electrolyte.
  • Other Types of Batteries
    • Nickel-Cadmium (NiCd)
    • Vanadium redox battery and zinc-bromine battery.
  • Characteristics of Batteries suitable for Stand Alone Systems
  • Energy Storage in Batteries
  • Battery Capacity
  • Charging Rate
  • Cut off voltage
  • Depth of Discharge (D.O.D)
  • Daily Depth of Discharge (D.O.D)
  • Efficiency of a Battery
  • Discharge Rate
  • Equalisation
  • Gassing
  • Self Discharge Rate
  • State of Charge (SOC)

12noon – 13:00: Lunch

13:00 – 16:00: Batteries Final part

  • Specific Gravity
  • Sulphation
  • Battery Voltage
  • Charging after deep discharge
  • Determining State of Charge
    • Specific Gravity
    • Open Circuit Voltage
    • Discharging and Charging Voltages
  • Maintenance of Batteries
  • Effect of Temperature
  • Combining Batteries
  • Paralleling Batteries
  • Battery Selection Criteria

Day 2

08:00 – 10:00: Session Two: Inverters

  • Purpose of Inverters
  • Frequency (Hertz)
  • Harmonic Distortion
  • Power Factor
    • Resistive Loads
    • Inductive Loads
    • Power Factor Corrected Inductive Loads
    • Electronic Loads
    • High Power Factor Electronic Loads
  • Types of Inverters: How the DC is converted to AC
    • Rotary Inverter
      • The Basic Solid State Inverter
      • Switch Mode Inverters
    • Output Waveform
      • Square Wave Inverters
      • Modified (Stepped) Square Wave Inverters
      • Sine Wave Inverter
      • Bi-directional Inverters (Battery Charging Inverters)

10:00 – 10:20: Coffee Break

10:20 – 12:00: Continuation of Inverters

  • Protection Circuits
    • Reverse Polarity
    • Overloads
    • Over Temperature
    • High and Low Battery Voltage
  • Inverter Power
  • Surge Capacity
  • Ratings of Inverters
  • Auto-start / Demand Start Feature
  • Isolation
  • RFI

12:00 – 13:00: Lunch

13:00 – 15:00: Session Three: Designing a UPS System

  • Energy Efficiency- brief overview
  • Estimating the Electrical Energy Load required to be supplied by UPS
    • Completing the AC Load Assessment Form
  • Estimated Energy Usage
  • Total A-hr Demand
  • Determination of System Voltage
  • Sizing and Specifying Batteries
    • Based on load, Hours that system needs to supply energy, Maximum DOD
    • Temperature Correction Factor
    • Maximum or Surge Demand
    • Maximum Charging Current
    • Daily Depth of Discharge
    • Number of Parallel Battery Strings
  • Specifying an Inverter
  • System Losses

15:00 – 15:20: Break

15:20 – 16:00: Exercises: Load Assessment Exercise

Day 3

08:00 – 10:00: Exercises: Sizing a UPS System and Workshop: Testing Batteries
Workshop: Safety Clothing to be worn when working with wet lead batteries
Workshop: Testing and measuring voltage of cells
Workshop: Using hydrometer to measure Specific Gravity

10:00-10:20: Break

10:20 – 12:00: Installing, Maintenance and Faultfinding

  • Introduction
  • Cable Sizing
  • Line Losses (Voltage Drop)
  • Permissible voltage drop in conductors
    • Using a table of values which shows the voltage drop for different cables under different current conditions.
  • Excessive Current
  • Circuit Protection
  • Sizing main battery fuses:
  • Battery Isolation
  • Installation Preparation
    • Equipment Location
    • Drawings
    • Installation Checklist
  • Equipment Installation
    • Battery Bank includes ventilation
    • Inverter
  • Introduction- Maintenance
  • Maintenance Schedule and Log Books
    • Batteries
    • Inverters
  • System Integrity
    • Maintaining System Integrity
  • Introduction- Fault Finding
  • Fault Finding
    • Batteries
    • Inverters
  • System Integrity
    • Troubleshooting the Whole System

12:00 – 13:00: Lunch

13:00 – 15:00: Exercises: Sizing a UPS System Continuation

15:00 – 15:15: Break

15:15 – 16:00: Session Eight: Adding Solar to the UPS System

  • Components
    • Solar modules
    • Array frame
    • controller
  • Brief discussion on determining how many module?
  • How do you learn more?
  • Connecting a UPS system to the Grid with Solar.
Public Notice
In light of COVID 19 outbreak... DSTC courses can now be taken online via ZOOM app with virtual face to face sessions with our senior technical trainer... Nicholas Opoku Kwarteng. Join our next virtual class from 11th to 20th May.... call 02466976905 for details or visit www.dstcafrica.org The first week of the course provides an overview of the basic PV system applications, primarily focusing on standalone systems. The goal of this training is to create a fundamental understanding of the core concepts necessary to work with all PV systems, including: system components, site analysis, PV module criteria, mounting solutions, safety, and commissioning. The course will also cover the basics of wire sizing, overcurrent protection, and grounding.