Absorbed Diversity Power

Absorbed Diversity Active Power

Absorbed Diversity Active Power is the active power passing through a tag (Supply Tag) that includes the diversity ratio (Duty Circle) assigned to each fed tag i.e. power consumer. It should be noted that a fed tag can be directly or indirectly connected to this Supply Tag.

• Absorbed Active Power has a unit value of kW.

• Fed tag Diversity has a unit of ratio.

• Absorbed Diversity Active Power is the total active power for all equipment tags that are fed directly or indirectly.

• Absorbed Diversity Active Power is derived from the value of the Utilisation for each fed tag. The utilisation values are:

  • Continuous

  • Intermittent

  • Standby

  • Spare

Equations for Absorbed Active Power attributes are:

Continuous Power = å (Absorbed Electrical Power * fed tag Diversity Factor) where fed tag Utilisation = Continuous

Intermittent Power = å (Absorbed Electrical Power * fed tag Diversity Factor) where fed tag Utilisation = Intermittent

Standby Power = å (Absorbed Electrical Power * fed tag Diversity Factor) where fed tag Utilisation = Standby

Spare Power = å (Absorbed Electrical Power * fed tag Diversity Factor) where fed tag Utilisation = Spare

Absorbed Diversity Reactive Power

Absorbed Diversity Reactive Power is the reactive power passing through a tag (Supply Tag) that includes the diversity ratio (Duty Circle) assigned to each fed tag i.e. power consumer. It should be noted that a fed tag can be directly or indirectly connected to this Supply Tag.

• Absorbed Reactive Power has a unit value of kVAr.

• Absorbed Reactive Power can have a positive or negative value. If positive, the associated power factor unit = LAG and if negative, the associated power factor unit = LEAD.

• Fed tag Diversity has a unit of ratio.

• Absorbed Diversity Reactive Power is the total reactive power for all equipment tags that are fed directly or indirectly.

Equations for Absorbed Reactive Power attributes are:

Continuous Reactive Power = å (Absorbed Reactive Power * fed tag Diversity Factor) where fed tag Utilisation = Continuous

Intermittent Reactive Power = å (Absorbed Reactive Power * fed tag Diversity Factor) where fed tag Utilisation = Intermittent

Standby Reactive Power = å (Absorbed Reactive Power * fed tag Diversity Factor) where fed tag Utilisation = Standby

Spare Reactive Power = å (Absorbed Reactive Power * fed tag Diversity Factor) where fed tag Utilisation = Spare

Note:
The above equations are only applicable when power has not passed through a busbar class tag. For equations for when power has passed through a busbar class tag, refer to Busbar Absorbed Diversity Power.

Absorbed Diversity Apparent Power

Absorbed Diversity Apparent Power is calculated using Absorbed Diversity Active Power and Absorbed Diversity Reactive Power.

Absorbed Apparent Power has a unit value of kVA.

Equations for Absorbed Apparent Power attributes are:

Continuous Apparent Power = √ (Continuous Power2 + Continuous Reactive Power2)

Intermittent Apparent Power = √ (Intermittent Power2 + Intermittent Reactive Power2)

Standby Apparent Power = √ (Standby Power2 + Standby Reactive Power2)

Spare Apparent Power = √ (Spare Power2 + Spare Reactive Power2)

Absorbed Diversity Power Factor

Absorbed Diversity Power Factor is calculated using Absorbed Diversity Active Power and Absorbed Diversity Apparent Power.

Absorbed Power Factor has a unit value of ratio.

Equations for Absorbed Power Factor attributes are:

Continuous Power Factor = Continuous Power / Continuous Apparent Power

Intermittent Power Factor = Intermittent Power / Intermittent Apparent Power

Standby Power Factor = Standby Power / Standby Apparent Power

Spare Power Factor = Spare Power / Spare Apparent Power

Equations for Absorbed Power Factor Unit attributes are:

If Continuous Reactive Power value is positive then Continuous Power Factor Unit = LAG

If Continuous Reactive Power value is negative then Continuous Power Factor Unit = LEAD

If Continuous Reactive Power value = 0 then Continuous Power Factor Unit = null

If Intermittent Reactive Power value is positive then Intermittent Power Factor Unit = LAG

If Intermittent Reactive Power value is negative then Intermittent Power Factor Unit = LEAD

If Intermittent Reactive Power value = 0 then Intermittent Power Factor Unit = null

If Standby Reactive Power value is positive then Standby Power Factor Unit = LAG

If Standby Reactive Power value is negative then Standby Power Factor Unit = LEAD

If Standby Reactive Power value = 0 then Standby Power Factor Unit = null

If Spare Reactive Power value is positive then Spare Power Factor Unit = LAG

If Spare Reactive Power value is negative then Spare Power Factor Unit = LEAD

If Spare Reactive Power value = 0 then Spare Power Factor Unit = null

Absorbed Diversity Current

Absorbed Diversity Current is calculated using Connection Voltage data (Voltage Type, Project Voltage) and Absorbed Diversity Apparent Power.

Absorbed Diversity Current has a unit value of Amp.

Equations for Absorbed Current attributes are:

If Voltage Type = S then
Continuous Current = (Continuous Apparent Power * 1000) / Project Voltage

If Voltage Type = L then
Continuous Current = (Continuous Apparent Power * 1000) / Project Voltage

If Voltage Type = T, TN then
Continuous Current = (Continuous Apparent Power * 1000) / (Project Voltage * 3)

If Voltage Type = DC then
Continuous Current = (Continuous Power * 1000) / Project Voltage

Note:
In this case Continuous Apparent Power = Continuous Power.

If Voltage Type = S then
Intermittent Current = (Intermittent Apparent Power * 1000) / Project Voltage

If Voltage Type = L then
Intermittent Current = (Intermittent Apparent Power * 1000) / Project Voltage

If Voltage Type = T, TN then
Intermittent Current = (Intermittent Apparent Power * 1000) / (Project Voltage * 3* 3)

If Voltage Type = DC then
Intermittent Current = (Intermittent Power * 1000) / Project Voltage

Note:
In this case Intermittent Apparent Power = Intermittent Power.

If Voltage Type = S then
Standby Current = (Standby Apparent Power * 1000) / Project Voltage

If Voltage Type = L then
Standby Current = (Standby Apparent Power * 1000) / Project Voltage

If Voltage Type = T, TN then
Standby Current = (Standby Apparent Power * 1000) / (Project Voltage * 3)

If Voltage Type = DC then
Standby Current = (Standby Power * 1000) / Project Voltage

Note:
In this case Standby Apparent Power = Standby Power.

If Voltage Type = S then
Spare Current = (Spare Apparent Power * 1000) / Project Voltage

If Voltage Type = L then
Spare Current = (Spare Apparent Power * 1000) / Project Voltage

If Voltage Type = T, TN then
Spare Current = (Spare Apparent Power * 1000) / (Project Voltage * 3)

If Voltage Type = DC then
Spare Current = (Spare Power * 1000) / Project Voltage

Note:
In this case Spare Apparent Power = Spare Power.