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.