Description
Presentation on the UPS system Requirements :
UPS system Type of your UPS system?
What’s the benefit from UPS ? How can the UPS system work? Where we can use your system?
I want a picture like the one in the presentation because it has an explanation of each type
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Unit 4-Troubleshooting a UPS System
Electrical Technician Program
ITD/SAITD/ESTU – MUB
Module 4.1
Objective 4.1.1
Critical loads
Equipment that is so important its operation must not be interrupted.
Its operation must be continuous and it must be regulated.
UPS systems have two important jobs:
1) During normal operation – firmly regulate voltage and frequency to the critical load
2) If normal supply voltage is lost-supply power to the critical load from batteries or an alternative source until
the normal supply is restored.
⚫ Configurations
1) Standalone configuration-protect simple applications that are not critical. Example, lights on a walkway.
normal
supply
UPS
load
normal
supply
RECTIFIER
INVERTER
BATTERY
load
auxiliary
supply
A standalone UPS system.
auxiliary,
supply
Standalone UPS Sub-system
2) Redundant configuration – there is a full back-up unit for example, process control equipment in a volatile
fractionation plant.
a) Parallel Redundant – made up of two identical UPS systems arranged so that UPS A and UPS B carry the load
together (load sharing 50/50).
normal
UPS A
supply A
RECTIFIER A
INVERTER A
BATTERY
-load
normal
supply
UPS B
normal
supply B
RECTIFIER B
INVERTER B
auxiliary
supply
A parallel redundant UPS system.
b) Cascaded Redundant-made up of two identical UPS systems arranged so that UPS A supplies the full load,
while UPS B is on standby.
supply
UPS A
static
switch A
normal
supply a
RECTIFIER A
INVERTER A
STATIC SWITCH A
load
BATTERY
UPS B
static
switch B
supply B
RECTIFIER
INVERTER B
STATIC SWITCH B
auxiliary
supply
A cascaded redundant UPS system.
c) Redundant UPS Sub-system, Paralleled for Capacity
INVERTER A
normal
supply
RECTIFIER
STATIC SWITCH
-load
INVERTER B
BATTERY
auxiliary
supply
Page 1 of 10
Objective 4.1.2
UPS main components:
1) Rectifier/charger-takes the mains supply to convert AC voltage to DC. Supplies the inverter and charges the
batteries.
2) Inverters converts DC voltage to A
plies the load.
Purchase answer to see full
attachment
Unit 4-Troubleshooting a UPS System
Electrical Technician Program
ITD/SAITD/ESTU – MUB
Module 4.1
Objective 4.1.1
Critical loads
Equipment that is so important its operation must not be interrupted.
Its operation must be continuous and it must be regulated.
UPS systems have two important jobs:
1) During normal operation – firmly regulate voltage and frequency to the critical load
2) If normal supply voltage is lost-supply power to the critical load from batteries or an alternative source until
the normal supply is restored.
⚫ Configurations
1) Standalone configuration-protect simple applications that are not critical. Example, lights on a walkway.
normal
supply
UPS
load
normal
supply
RECTIFIER
INVERTER
BATTERY
load
auxiliary
supply
A standalone UPS system.
auxiliary,
supply
Standalone UPS Sub-system
2) Redundant configuration – there is a full back-up unit for example, process control equipment in a volatile
fractionation plant.
a) Parallel Redundant – made up of two identical UPS systems arranged so that UPS A and UPS B carry the load
together (load sharing 50/50).
normal
UPS A
supply A
RECTIFIER A
INVERTER A
BATTERY
-load
normal
supply
UPS B
normal
supply B
RECTIFIER B
INVERTER B
auxiliary
supply
A parallel redundant UPS system.
b) Cascaded Redundant-made up of two identical UPS systems arranged so that UPS A supplies the full load,
while UPS B is on standby.
supply
UPS A
static
switch A
normal
supply a
RECTIFIER A
INVERTER A
STATIC SWITCH A
load
BATTERY
UPS B
static
switch B
supply B
RECTIFIER
INVERTER B
STATIC SWITCH B
auxiliary
supply
A cascaded redundant UPS system.
c) Redundant UPS Sub-system, Paralleled for Capacity
INVERTER A
normal
supply
RECTIFIER
STATIC SWITCH
-load
INVERTER B
BATTERY
auxiliary
supply
Page 1 of 10
Objective 4.1.2
UPS main components:
1) Rectifier/charger-takes the mains supply to convert AC voltage to DC. Supplies the inverter and charges the
batteries.
2) Inverters converts DC voltage to A
plies the load.
Purchase answer to see full
attachment
