## Calculations of cables, voltage drop etc...

September 23, 2017

Calculation of Sag

Calculation of Sag:

The sag & tension of conductor may be calculated in the following condition:

• a) When the supports are at equal levels.

• b) When the supports are at unequal levels.

i) Sag calculation when supports are at equal levels:

Lets,

A conductor is in the two equal level supports A...

September 05, 2017

Power Factor correction using static capacitor

Calculation formulas as follows:

• Q1 =  I losses + Cu losses

• Q2 = PkW · (Tanφ1 – Tanφ2)

• I losses = 2% ·  Str

• Cu losses = USC% · Str

• Q = Q1 + Q2

Calculate Insulation Resistance Value and PI value

August 24, 2017

Minimum insulation resistance value

This MS Excel spreadsheet calculates the following paraneters:

• Minimum Insulation Resistance Value for Various Electrical Equipment

• IR Value of Electrical Equipments

• Graph of IR Value

• Polarization Index Value with Graph

• Earth Resistivity

August 24, 2017

This MS Excel spreadsheet has possibilities to calculate the following:

• Voltage / Voltage Difference of Each Phase

• Unbalanced Load in Neutral Wire.

• Expected Temperature rise in Each Phase.

• Load in Each Phase and Outgoing Feeders.

• Size of Cables for Each Outgoing Feeder.

August 17, 2017

Electrical load calculation and energy consumption

This MS Excel spreadsheet calculates the following //

• Continuous and non-continuous electrical load of panel

• Total energy consumption (KWH) in daily/monthly of panel

• Size of MCB of each branch circuit of panel

• Voltage / Voltage difference of each phase

• Unbalanced load in neutral wire

• Expected temperature rise in each phase

• Size / type / tripping setting of main MCCB

August 13, 2017

Busbar voltage drop calculation

• Calculate Voltage Drop for  Bus Bar

• Select Size of Bus Bar for particular Load

August 13, 2017

Home Electrical Bill / Energy Consumption / Load Calculator

This MS Excel spreadhseet calculates the following //

• Electrical Bill of Home

• Size of MCCB/MCB for Domestic Load

August 13, 2017

Calculation of voltage drop and cable size

• Calculate Voltage drop of Cable.

• Calculate  Size of Cable.

• Calculate Current Capacity of Cable

August 13, 2017

Motor starting case studies

A motor starting case study for any given electrical network can be performed by reduced the network to a smaller equivalent network consisting of a source (generator / grid), the starting motor (largest motor), other large running motor and a lumped load...

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September 23, 2017

Calculation of Sag:

The sag & tension of conductor may be calculated in the following condition:

• a) When the supports are at equal levels.

• b) When the supports are at unequal levels.

i) Sag calculation when supports are at equal levels:

Lets,

A conductor is in the two equal level supports A...

September 05, 2017

Calculation formulas as follows:

• Q1 =  I losses + Cu losses

• Q2 = PkW · (Tanφ1 – Tanφ2)

• I losses = 2% ·  Str

• Cu losses = USC% · Str

• Q = Q1 + Q2

August 24, 2017

This MS Excel spreadsheet calculates the following paraneters:

• Minimum Insulation Resistance Value for Various Electrical Equipment

• IR Value of Electrical Equipments

• Graph of IR Value

• Polarization Index Value with Graph

• Earth Resistivity

January 01, 2020

This MS Excel spreadsheet has possibilities to calculate the following:

• Voltage / Voltage Difference of Each Phase

• Unbalanced Load in Neutral Wire.

• Expected Temperature rise in Each Phase.

• Load in Each Phase and Outgoing Feeders.

• Size of Cables for Each Outgoing Feeder.

August 17, 2017

This MS Excel spreadsheet calculates the following //

• Continuous and non-continuous electrical load of panel

• Total energy consumption (KWH) in daily/monthly of panel

• Size of MCB of each branch circuit of panel

• Voltage / Voltage difference of each phase

• Unbalanced load in neutral wire

• Expected temperature rise in each phase