electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

Friday, 24 March 2017

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electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

HOW TO MAKE LED DRIVER


This Article for how to make a simple led driver circuit for Serial light or another led light. This driver making some simple step and simple circuit using one 474J 400 Volt capacitor, One 100 Ohm resistor and 4 nos of Diode. 

   Proceedure

  1.            Make Bridge rectifier using Diode
  2.            Connect Capacitor and Resistor


Circuit Diagram


More Details View this video and Subscribe this YouTube Channel or Follow This Blog


Thursday, 23 March 2017

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How to make LED Driver

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

https://youtu.be/RpKRkDEhkX0

Sunday, 19 March 2017

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UPS WIRING DIAGRAM FOR HOME

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

UPS WIRING DIAGRAM FOR HOME



Friday, 17 March 2017

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STANDARD OPERATING PROCEDURE FOR TRANSFORMER SERVICING (SOP)

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

STANDARD OPERATING PROCEDURE FOR TRANSFORMER SERVICING (SOP)









RECORD OF REVISION:
1        Nil
           
REASON FOR ISSUE:
1        To have proper consistency and instructions / procedures in place for Transformer.

1.                                          PURPOSE:
1.1                   To describe a procedure for the maintenance of Transformer Oil servicing
                                                           
2.                                          SCOPE:
2.1                   This procedure is applicable for the maintenance of all the Transformers at -------(Location)

3.                     REFERENCE:
3.1.1                                Utilities Monitoring

3.2.                        Other SOPs having reference to this SOP.
3.2.1                                LOTO

4.                                 DEFINITION:
  4.1                   Nil

 5           KEY ROLES & RESPONSIBILITIES:            
Business Role
Key Responsibilities
 Head
To ensure adequate facilities, system and personnel are available to carry out this process
Head of the Department
To ensure that procedures are in place to carry out requirement of the process. To ensure adequate drawings / manuals, materials / spares & labors’ are available to carry out this process
Supervisor/Engineer
Responsible for supervising / carrying out the preventive maintenance check sheet / flow chart / sequential steps to ensure proper completion of the task. Ensure that the Safety Work Permit System is followed & monitored closely.
Contractor / Associate
Ensure to follow the work permit system along with conducting the daily tool box talks with the team and ensure proper usage of PPE. Responsible for carrying out the preventive maintenance work. Also, timely follow the instructions as given by the Supervisor in charge pertaining to the work.
6.      PROCEDURE:
6.1  Process Overview:

6.1.1                                The Transformer is main part of Electrical substation.

6.1.2                                There are total of 2 Transformers’ at Substation . They are of different capacities based on the rating if the equipment’s connected to the circuit.

 6.1.3                                Transformer Capacity Table
    
Sl No.
Description
Make
Quantity
1
----- KVA
----
1
2
1000 KVA
-----
1








6.1        Sequence:

·         Take Transformer oil sample and check BDV value through external agency.
  • The BDV Value is below 55KV, Take the quotation from external agency for Transformer Oil servicing.
  • Issue the work order to external agency for Transformer Oil servicing.
  • Planned date and time inform to external agency.
  • Arrange Power supply for Transformer Oil service filter Unit
  • Switch off  Transformer incomer supply from VCB Panel
  • Take the sample oil and check the BDV value before servicing
  • Start the Oil filtration
  • After Filtration check and confirm the BDV Value of Transformer is above 55 KV
  • Check the Oil level in Transformer, Fill the new Oil if Required
  • After Oil filtration Switch ON the transformer, ensure the temperature is low
  • After servicing collect the Bill and prepare Work completion note and given to accounts for Payment
  • Collect the Transformer service report
  • Notice the BDV value and Due date in near Transformer
  • This process once in a year
6.3.1        All the activities are done manually.
7.            DOCUMENTATION
7.1              Keep the service report at Substation and Notice the BDV value and Due date in near Transformer
8.                  PPE:
8.1              Electrical Hand gloves, Safety shoes, Barricading (by masking tape) of the job, Fire extinguishers (CO2 Type / Sand buckets)
9.                  Tools/ equipment’s required:
9.1              Insulated Spanner, Tester, Screw Driver,
10.              IMPACT IN CASE OF DEVIATION:
10.1          Damage to equipment
10.2          Personnel safety
11.              CORRECTIVE ACTION IN CASE OF DEVIATION:
11.1     Training and awareness should be given to the staff handling.
12.              STAKE HOLDERS
12.1.1    Electrical Department
13    EMERGENCY CONTACT NO’s
Sl no
Designation/ Name/Dept.
Contact number
Remarks
1



3



4



5
Emergency intercom number –


6
First Aid number
100




                      DOWNLOAD THIS SOP




Monday, 13 March 2017

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How to Make LED Serial Light in Our Home

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,

LED Serial Light Making


Dear All
         This topic for how to make serial decorative light in our home with cheap cost. Please go through the following steps
1. Purchase all items for making light

  • Serial Light Cap and Holder- 50 Nos
  • LED Light 8MM---50 Nos
  • Cable -30 Mtr( 15+15)
  • Capacitor 474 400V --1 Nos
  • Resistor 100 Ohm --1 Nos
  • Diode IN 4007---4 Nos

2.Cut the wire in 60 Cm length in each colour
3.Cut one wire piece for first twisting is 30 cm length(This is for first use)
4. Twist the cable 30 cm + 60 Cm length 
5. Solder the first LED +ve leg , Connect 30 CM length wire and connect 60 cm wire in negative leg
6. Again solder (Connect) next LED - Ve leg connect first 60 cm wire.
7. Continiue this process in 50 led

More Details please watch this Video




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How to make LED Serial light at Home

electrical theory and electrical fundementals for all electrical related people . students , engineers, electrician #electricaltheorems,electrical,