fundamentals of telecom power supply_ems1
TRANSCRIPT
Fundamentals of Telecom Power Supply SystemFundamentals of Telecom Power Supply SystemShelby Wey, Customer Trainer
86-755-6812363
ContentContent Primary functions of telecom power
supply system
Principle of telecom power supply system
Basic PrincipleBasic Principle
Power, don’t interrupt!Power, don’t interrupt!
Communication, don’t interrupt !Communication, don’t interrupt !
Telecom Power SystemTelecom Power System
Power supply
Power supply SwitchSwitch
TransmissionTransmission
Bu
s Bar
Bu
s Bar
48VDC
220/380VAC
1. AC DC rectifying
Telecom Power SystemTelecom Power System
Power supply
Power supply
BatteryBattery
SwitchSwitch
TransmissionTransmission
Bu
s Bar
Bu
s Bar
48VDC
220/380VAC
Telecom Power SystemTelecom Power System
Power supply
Power supply
BatteryBattery
SwitchSwitch
TransmissionTransmission
Bu
s Bar
Bu
s Bar
48VDC
220/380VAC
2. Manage the battery
Primary functionsPrimary functions
2. Manage the battery
1. AC DC rectifying
Battery BankBattery Bank
++ --
Battery voltage1.8~2.23V
43.2V~53.5V
24 batteries
Manage the battery(1)Manage the battery(1) Charge Voltage
– FC (Floating charge) 53.5V
• Complement the charge loss for self-discharge in the battery
– EC (Equalizing charge) 56.4V
• Quickly charge
• Make the performance of each battery accordant
Equalizing ChargeEqualizing Charge
Power supply
Power supply
BatteryBattery
SwitchSwitch
TransmissionTransmission
Bu
s Bar
Bu
s Bar
56.4VDC
220/380VAC
1. Charge the battery quickly
2. Make the performance of each battery accordant ( equalized )
Not full
Floating ChargeFloating Charge
Power supply
Power supply
BatteryBattery
SwitchSwitch
TransmissionTransmission
Bu
s Bar
Bu
s Bar
53.5VDC
220/380VAC
Complement the charge loss for self-discharge
full
Manage the battery(2)Manage the battery(2)
Charge Current
– <= 0.1~0.15 C10
• As the user, we hope the battery can be charged fully as quickly as possible.
• Not too small, otherwise the battery hasn’t been charged enough before next power cut.
• Not too large, otherwise the battery will be damaged.
ExampleExample
C10
– Capacity (discharging all in 10 hours)
Example
– C10=1000AH
– Charge current limit =100A ~150A
Primary functionsPrimary functions
2. Manage the battery
1. AC DC rectifying
ContentContent Primary functions of telecom power
supply system
Principle of telecom power supply system
ACDistributor
DCDistributor
Rectifiers
MonitoringModule
Telecom power supply systemTelecom power supply system
RS485/422Auxiliary AC Output
AC
A
C
Distrib
utio
nD
istribu
tion
整流模块
Rectifier n
DC
D
C
Distrib
utio
nD
istribu
tion
Monitor
Battery 1
Battery 2
Current Sampling
AC Input
Rectifier 1
Rectifier 2
48V DC
RS485/422
Remote monitoring center
Transmission resourceTransmission resource
RS232/485/422
Telecom power supply systemTelecom power supply system
RectifierRectifier
Convert AC to DC
At least 2 rectifiers
AC Distribution UnitAC Distribution Unit
AC access
Distribute AC for rectifiers
DC Distribution UnitDC Distribution Unit
Distribute DC for load equipment
MonitorMonitor Monitoring
Battery Management
Provide standard communication ports, for remote monitoring
Thank you Thank you very much!very much!
Headline CopyHeadline Copy Body text
Body text
– Body text
Removing logo from slideRemoving logo from slide It is recommended that the logo be removed from slides
when the information on a slide needs the maximum amount of space to be presented clean and with maximum readability.
– You can do this by accessing the “Format” menu selection, scroll down and select “Background”, then click in the box next to the statement, “Omit background graphics from master,” and select “Apply”.
– You can reinstate the line under the title by drawing in a line using the line tool and coloring it blue.
Color PaletteColor Palette This slide represents the Emerson color palette
Preferred gradient use
R 225G 225B 0
R 225G 204B 0
R 153G 225B 51
R 0G 153B 0
R 224G 158B 50
R 225G 0B 0
R 71G 186B 214
R 0G 153B 204
R 204G 0B 102
R 153G 0B 51
R 102G 153B 255
R 102G 0B 102
R 15G 36B 95
R 150G 150B 150
Using the Emerson Color PaletteUsing the Emerson Color Palette The extended color palette brings bright, vibrant colors to
be used in many ways — from highlighting words to making exciting charts and graphs.
A selection of colors from the palette have been imbedded into this template for your use. In order to use the other colors available to you from the palette please use the following instructions:
– Select the word or graphic element you wish to color and select either the “Paint can”, the “Brush”, or the “A”, depending on the item you are coloring, choose “More (fill, line, font) colors”, click on the tab “Custom” and enter the correct R G B numbers for the color from the palette on the preceding slide you are creating, click OK.
The Emerson Color PaletteThe Emerson Color Palette The Emerson color palette was designed to bring color
consistency to various applications — from web design to presentations to brochures. It is strongly recommended that the bright and vibrant colors in this palette be used in graphs, text and charts to highlight your PowerPoint presentations, thereby showcasing our “world in action.”
A selection of colors from the palette have been embedded into this template for your use. In order to use the other colors available to you from the palette, please use the following instructions:
– Select the word or graphic element you wish to color and select either the “Paint can”, the “Brush”, or the “A”, depending on the item you are coloring, choose “More (fill, line, font) colors”, click on the tab “Custom” and enter the correct R G B numbers for the color from the palette on the preceding slide you are creating, click OK.
Printing for Black and WhitePrinting for Black and White When printing to black and white printers you must select “Pure Black
and White” in the print dialogue box. This will remove the background color and print objects and text in black.
In order to print the logo correctly to b&w, please copy each logo below and go to “View” Slide and Title masters and paste them directly over the color logos. It is not necessary to do this when printing to color printers.
Title Master logo Slide Master logo
Division Logo
Division Logo