UPS Service Training

SESSION-1 UPS – Introduction
Difference between UPS & Inverter Basic working principles of UPS
(i) When the AC main supply is available
(ii) When the AC main supply is not available.
(iii)Automation Section.
Types of UPS
(1)Online UPS . (2)Off line UPS.
Various types Components used in the UPS
Relay/Transformer/Battery/Fuse/fuse holder switches/sockets/panel indicator (LED/Neon Lamp)/meter (volt/Ampere)/Transistor/Mosfet/Ics.
SESSION-2 Switching Transistors & Mosfet’s
Advantages of electronic switch/Transistor as switch/Bi polar Transistor vs Mosfet/comparator/AC Voltage level sensor
Relays
Solenoid/ Relay/ Constructions of Relay, Relay in circuit/ single ,double& triple pole Relays
SESSION-3 PRACTICAL
SESSION-4 Transformer
- Types of Transformer
- Step down transformer,
- Step-up Transformer,
- Auto transformer
- Transformer Ratings(watts/volt/Ampere)
- Applying DC to Transformer
- Parts Transformer Coil/ Former/ Bobbin/ Core
SESSION-5 PRACTICAL
SESSION-6 BATTERY:-Rechargeable Battery
- Primary Battery / Secondary Battery / Cell & Batteries / Rechargeable Battery Wet lead – Acid Battery / Dry lead – Acid Battery or Maintenance Free Battery.
- Types of Battery Charger:-(a) Charger using SCR (b) Charging using L 200. (c) Charging using LM317 (d) Trickle charging (e) Diode using charger CHECKING BATTERY VOLTAGE
SESSION-7 Practical for the previous day
SESSION-8 ICs in the UPS Circuit
- LM 324N–Operational Amplifier(op-Amp) What is an OP- Amp
- KA3524 / SG3624 –PWM Controller Oscillator
- CD4073–AND Gate (4) NE555 Timer ( 5) 4N35-Opto Coupler
- LM7812–12 Voltage Regulator (7) CM 317 Adj Regulator
SESSION-9 500VA / 12V UPS Circuit Black Diagram & its Sections
- Oscillator,PWM controller& Out Put Section
- What is PWM,how does this function working of PWM
- Automatic Voltage Regulator (AVR) Section
- Low Voltage cut Section.5. High Voltage cut Section
- Charging Section & Etc.
SESSION-10 Practical for the previous day
SESSION-11 500VA / 12V UPS Circuit Description and working principle
- Oscillator section & its working principle
- Circuit Description
- Mosfet Drive section :- .Circuit description & its working principle
- Out put Section :- Circuit Description & working principle
SESSION-12 PWM (Pulse With Modulation)
- Safety Section:-Circuit Description / working principle & 5V Regulator Supply
- AVR Section : –
- 1st- AVR Circuits and its working principle
- 2nd- AVR Circuits and its working principle
SESSION-13 Practical for the previous day
SESSION-14 Voltage cut off Section
- Low voltage cut off Section / working principle
- High voltage cut off Section. / working principle
- Charging Section / working principle
- AC Mains ON / Charging indicator LED.
- Supply to AVR Section / Regulator power supply section
- Charge over Section and its working principle
- No Load Shutdown Section
SESSION-15 Practical
SESSION-16 BATTERY SECTION
- Low Battery Shutdown Circuit and its working principle
- Overload Shutdown Section
- Overload circuit / working principle
SESSION-17 Practical for the previous day
SESSION-18 625VA / 24V OFF LINE UPS
- UPS Description /Ics- Used /Battery Back Up /Out put power main functions
- Ics used in this USP :– SG3524 / LM339 / LM324 / LM73 /CD4011 /555
- CONVERTING 500VA / 12V UPS to 625VA /24V & 1250 VA / 24A UPS
1 Primary winding / 2. Secondary winding
3 Charging winding / 4. Transformer weight of wire
SESSION-19 Introduction & Installation of a common 625VA ups
Introduction 2 Front panel / “Replace battery” Indicator {Red led}
“Back up”–indicator {Yellow led} , “Line normal” –indicator {Green led} “On/off/test/silence” button.
SESSION-20 Rear panel
- Computer interface
- Insulation/Placement/Connect computer interface/ Connect to
- main power supply/ Change the battery/Connect the
- loads/Connect the telephone/ Modem lines
- IImpt :- {425Ap/525Ap/625Ap Models only}
SESSION-21 Common Faults and Troubleshooting
Troubleshooting from all sections & Doubt clearing
Course Features
- Lectures 0
- Quizzes 0
- Duration 2 hours Daily
- Skill level All levels
- Language English , Hindi
- Students 1205
- Certificate Yes
- Assessments Self
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