tag:blogger.com,1999:blog-62914668865226561942024-05-29T07:28:01.995+03:00Electrical Knowhowonline electrical courses software books spreadsheets electrical design sound system design voltage, power transformer current voltage drop generator circuit breaker fuse cable wire power factor cad drawing nec nfpa short circuit over voltage switch receptacle light fixture lighting, grounding bonding earthing lightning raceway switchgear panel busbar automatic transfer switch demand factor capacitor resistance battery ampere horsepower watt switchboard single line diagram bill of quantitiesElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.comBlogger552125tag:blogger.com,1999:blog-6291466886522656194.post-36169022907788852612024-05-12T15:00:00.000+03:002024-05-12T15:00:02.840+03:00Stationary UPS Sizing Calculations – Part FiveAs we stated in the previous article “Stationary
UPS Sizing Calculations
-Part One” That Stationary UPS Sizing Calculations
include:
The UPS sizing calculations,Rectifier/Charger sizing calculations,Inverter & Static Switch sizing
calculations,The Battery Sizing Calculations.
We explained the UPS sizing calculations in
the above article and we explained in article “Stationary UPSElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-26188924221569797142024-05-04T07:58:00.001+03:002024-05-04T07:58:30.239+03:00Stationary UPS Sizing Calculations – Part FourAs we stated in the previous article “Stationary
UPS Sizing Calculations
-Part One” That Stationary UPS Sizing Calculations
include:
The UPS sizing calculations,Rectifier/Charger sizing calculations,Inverter & Static Switch sizing
calculations,The Battery Sizing Calculations.
We explained the UPS sizing calculations in
the above article and we explained in article “Stationary UPSElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-47827059466307492422024-02-15T12:18:00.006+03:002024-05-27T08:26:35.237+03:00Stationary UPS Sizing Calculations – Part ThreeAs we stated in the previous article “Stationary
UPS Sizing Calculations
-Part One” That Stationary UPS Sizing Calculations
include:
The UPS sizing calculations,Rectifier/Charger sizing calculations,Inverter & Static Switch sizing
calculations,The Battery sizing calculations.
We explained the UPS sizing calculations in
the above article and we explained in article “Stationary UPSElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-30957841964430267422024-01-22T11:04:00.000+03:002024-01-22T11:04:02.875+03:00Stationary UPS Sizing Calculations – Part TwoAs we stated in the previous article “Stationary
UPS Sizing Calculations -Part One”, That Stationary UPS Sizing Calculations
include:
The UPS sizing calculations,Rectifier sizing calculations,Inverter sizing calculations,The Battery sizing calculations.
We explained the UPS sizing calculations in
the above article and Today, we will explain the other calculations.
Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com1tag:blogger.com,1999:blog-6291466886522656194.post-60044406572820156802023-12-19T13:56:00.001+03:002023-12-19T13:56:08.664+03:00Stationary UPS Sizing Calculations – Part OneAs we stated in the previous article “Evaluation Criteria for Selecting an UPS-Part One”, where we
explained the (8) steps for Evaluation Criteria for Selecting an UPS and left Step#3: Determine the power requirements to be discussed
later in detail. Today, we will do this.
Stationary UPS Sizing Calculations
Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-46228288665817816852023-12-16T10:57:00.001+03:002023-12-16T10:57:39.005+03:00Evaluation Criteria for Selecting an UPS-Part Two
In the
previous Article "Evaluation Criteria for Selecting an UPS-Part One”, we explained The process for selecting an UPS
which consists of eight steps (see Fig.1). These steps are:
Step#1: Determining the need for an UPS, Step#2: Determining the purpose(s) of the UPS,
Step#3: Determining the power requirements,Step#4: Selecting the type of UPS, Step#5: Determining if the safety of the
Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-24838878544578698172023-11-28T15:12:00.002+03:002023-12-07T08:55:32.248+03:00Evaluation Criteria for Selecting an UPS-Part One
Evaluation Criteria for Selecting an UPSThe
process for selecting an UPS consists of eight steps (see Fig.1). These steps
are:
Step#1:
Determining the need for an UPS,
Step#2:
Determining the purpose(s) of the UPS,
Step#3:
Determining the power requirements,
Step#4:
Selecting the type of UPS,
Step#5:
Determining if the safety Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-4338226106083131882023-11-22T11:03:00.000+03:002023-11-22T11:03:33.962+03:00Components of Online Double Conversion UPS– Part Two In the previous article “ Components of Online Double
Conversion UPS– Part One”, We showed that an
online double Conversion UPS has (4) major components As shown in the Fig.1:
Rectifier,Inverter,Energy Storage (Battery),Static Switch.
Fig.1 Components
of Online Double Conversion UPS
We explained the first three components and indicated that
the energy storage system has Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-84833555471955622852023-11-18T11:22:00.002+03:002024-05-27T08:19:15.283+03:00Components of Online Double Conversion UPS– Part OneA double conversion UPS converts the incoming alternating
current (AC) to a direct current (DC), so it can power the system’s battery,
and then inverts the DC back to AC for powering equipment – hence the name
“double conversion.”
We need to know how a UPS’s components work together so we
can better understand the UPS system and ensure that the critical load remains
online.
As shown in the FigElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-17103776015185306602023-11-14T12:13:00.002+03:002023-11-14T12:13:48.215+03:00Classification and Types of UPS – Part Nine In the previous article
“Classification and Types of UPS – Part One”, we stated that UPS is classified
according to:
Voltage range,No. of phases, Mobility,Technological design,Physical Size/capacity,Form factor/ configurations,Topology,Distribution Architecture,Use of transformers.
We already explained all classifications in
the Previous articles (see table inElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-76200959876812567152023-11-12T14:48:00.000+03:002023-11-12T14:48:15.028+03:00Classification and Types of UPS – Part EightIn the previous
article “Classification and Types
of UPS – Part One”, we stated that UPS is classified
according to:
Voltage range,No. of phases, Mobility,Technological design,Physical Size/capacity,Form factor/ configurations,Topology,Distribution Architecture,Use of transformers.
We already
explained all classifications in the Previous articles (see table in the Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-42399949166935999132023-11-05T13:27:00.000+03:002023-11-05T13:27:21.501+03:00Classification and Types of UPS – Part SevenIn the previous
article “Classification and Types of
UPS – Part One”, we stated that UPS is classified
according to:
Voltage range,No. of phases, Mobility,Technological design,Physical Size/capacity,Form factor/ configurations,Topology,Distribution Architecture,Use of transformers.
We already explained all
classifications in the Previous articles (see table in the Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-48055839809232846542023-10-25T13:32:00.000+03:002023-10-25T13:32:00.257+03:00Classification and Types of UPS – Part Six In the previous article “Classification and Types of UPS – Part One”, we stated that UPS is classified
according to:
Voltage range,No. of phases, Mobility,Technological design,Physical Size/capacity,Form factor/ configurations,Topology,Distribution Architecture,Use of transformers.
We already explained the first seven
classifications in the Previous articles (Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-38872756786201238352023-10-19T12:33:00.000+03:002023-10-19T12:33:23.021+03:00Classification and Types of UPS – Part FiveIn the previous article “Classification and Types of UPS – Part One”, we stated that UPS is classified
according to:
Voltage range,No. of phases, Mobility,Technological design,Physical Size/capacity,Form factor/ configurations,Topology,Distribution Architecture,Use of transformers.
We already explained the first six
classifications in the Previous articles (see Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-15771588824018107052023-09-27T13:39:00.000+03:002023-09-27T13:39:04.580+03:00Classification and Types of UPS – Part FourIn the previous article “Classification and Types of UPS – Part Two”, we stated that according to the Form factor/
configurations, the UPS Systems have five famous configurations, which are:
1- “N” System
Configuration
2- “N+1” System
Configuration, which includes:Isolated Redundant Configuration (N +1)Parallel Redundant Configuration (1+1)Parallel Redundant Configuration (N +1)Parallel Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-23320273460847279792023-09-25T11:28:00.000+03:002023-09-25T11:28:50.436+03:00Classification and Types of UPS – Part ThreeIn the previous article “Classification and Types of UPS – Part One”, We explained the following points:
Applicable Standards for UPS SystemsWhat is a UPS?Why do we need a UPS?UPS RatingClassification of UPS
In addition, we stated that UPS is
classified according to:
Voltage range,No. of phases, Mobility,Technological design,Physical Size/capacity,Form factor/ Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-73503727288149408482023-08-15T07:55:00.000+03:002023-08-15T07:55:47.621+03:00Classification and Types of UPS – Part Two
In the previous article “Classification and Types of UPS – Part One”, We explained the following points:
Applicable Standards for UPS SystemsWhat is a UPS?Why do we need a UPS?UPS RatingClassification of UPS
In addition, we stated that UPS is
classified according to:
Voltage range,No. of phases, Mobility,Technological design,Physical Size/capacity,Form factor/ Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-37424404456990533862023-01-15T08:36:00.000+03:002023-01-15T08:36:47.710+03:00Classification and Types of UPS Today, we will start explaining the
UPS design and sizing calculations, and as we do usually, we will start by
explaining the components and main types of UPS systems.
First:
Applicable Standards for UPS Systems
Throughout Our explanation of the UPS
systems, we will use the following standards:
1- Standards
Relevant toElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com4tag:blogger.com,1999:blog-6291466886522656194.post-10682896486560822522021-06-07T08:10:00.003+03:002021-06-09T12:42:10.864+03:00Answering the questions about International Standards and Codes
Introduction
IEC – ASTM- UL – DIN-
CEN – ASME – BS – ISO – UL – DIN EN – IEEE – CENELEC – DIS - BS EN – ANSI –
TIA – NEC – EIA- OSHA -DIN ISO – DPC – PAS – AENOR –CSN – ILNAS – NFPA –PrEN
– CEN/TR – ETSI – ENV-BS ISO – NFC - CEN/TS – ICT – DIN EN ISO – FDIS –
ASHRAE - ……. Etc.
All above abbreviations are the names of Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com1tag:blogger.com,1999:blog-6291466886522656194.post-30340318631775449452020-04-20T12:18:00.001+03:002020-04-20T13:17:47.786+03:00Electrical Water Heaters Power Rating Calculations – Part Four
This is the fourth Article for helping designers to choose the
appropriate type and calculate the required power rating for the chosen type of
Electrical Water Heater.
In the first
Article " Electrical Water Heaters Power Rating Calculations – PartOne", we gave you a brief about the following points:
Hot Water System Components,
Different types of Water Heaters used in domestic and Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com4tag:blogger.com,1999:blog-6291466886522656194.post-21159591988958762332020-04-18T08:49:00.003+03:002020-04-20T13:17:05.777+03:00Electrical Water Heaters Power Rating Calculations – Part Three
This is the third Article for helping designers to choose the
appropriate type and calculate the required power rating for the chosen type of
Electrical Water Heater.
In the first
Article " Electrical Water Heaters Power Rating Calculations – Part One", we gave you a brief about the following points:
Hot Water System Components,
Different types of Water Heaters used in domestic and Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com2tag:blogger.com,1999:blog-6291466886522656194.post-16944489833526438902020-04-16T07:37:00.002+03:002021-06-19T07:47:59.393+03:00Load Bank Selection and Sizing Course
Course Description:
This course is intended to prepare the target persons with the ability to
perform Load Bank Sizing Calculations.
The targeted Persons:
Design engineers, new graduate engineers, under graduate engineering students.
Skills Development:
On completion of this course the target person will be able to:Know the Load Bank Types, Applications
& Components.Know Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com3tag:blogger.com,1999:blog-6291466886522656194.post-10981974161769579102020-04-15T10:00:00.002+03:002020-04-16T07:45:49.886+03:00Load Bank Sizing Calculations – Part Six
Today, we will
explain the Steps for Selection/Calculation of the Proper Load Bank and Standard Load
Bank Testing Procedure.
The (14)
Steps for Selection/Calculation of the Proper Load Bank
There are several factors involved in the
selection and sizing of the proper load bank used for testing a power source.
Inadequately sized load bank may shortenElectrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-13337083810423335122020-04-12T12:55:00.000+03:002020-04-16T07:46:23.929+03:00Load Bank Sizing Calculations – Part Five
Today, we will
explain the Load Bank Power Connections and an example for Installation details, Power and
Control Wiring Diagrams for A Load Bank.
Load
Bank power Connections
1- Is a Local Isolator required for
disconnecting the load bank?
When planning the installation of the load bank consider if a local isolator
switch is required for Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0tag:blogger.com,1999:blog-6291466886522656194.post-91750791539820684092020-04-09T13:18:00.000+03:002020-04-16T07:46:57.767+03:00Load Bank Sizing Calculations – Part Four
Today, we will
explain the Load Bank components and its basic circuits.
Load
Bank Components
Basically any low voltage load bank
will be consists of the following basic components:
Enclosure,
Load elements,
Controls
& Instrumentation,
Cooling
system,
System
Protections,
Load and
supply Connectors.
1-Enclosure
Electrical-Knowhowhttp://www.blogger.com/profile/01987779579613671493noreply@blogger.com0