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• Solutions on Undervoltage on Bus

Hello,

I run Load Flow Calculations and Short Circuit Analysis on ETAP.
I have critical and marginal...

• Watts Calculation Method for 240V Circuits

I need assistance with determining my Watts correctly with Ohm's law using the amperage reading from my Fluke clamp meter. I welcome anyone who can correct...

• ELECTRICAL DESIGN ANALYSIS vs. ELECTRICAL SCHEDULE OF LOADS

Here in the Philippines, our electrical plans are required to be provided with the Electrical Design Analysis, Single-line Diagram and Schedule of Loads....

• RANGE CIRCUIT PROTECTION CALCULATION

I need to install a range circuit for a dwelling unit.

According to the NEC, range circuits in dwelling units have to be sized 5000VA; divided...

• Future capacity percentage for panel board main breaker.

I'm calculating the size of a main breaker for a dwelling unit panelboard. I've found that after adding all the load currents with their respective protection...

• Illumination/Lighting branch circuit breaker calculation

Hello.

I'm trying to calculate a bunch of illumination/lightning branch circuits. Reading some guides on the Internet, I came upon...

• kva calculation of load to spec generator

Greetings,
My customer has asked me to calculate the size of generator needed to power equipment in remote location. I have a generator specialist...

• Neutral calculation

Have a question about calculating neutral load for the service. In example D1(a) in Annex D in the section for neutral load calculation dryer is included...

• How to i calculate Heat Pump supplemental heat for service size.

I am trying to calculate the air unit portion of a heat pump for service size calculation. My local code guru is saying to add the KW rating of the heat...

• Notes to Tables for Conduit Fill

Question 1.

Note (4) in Chapter 9 of NEC 2011:

"Where conduit or tubing nipples having a maximum length not to exceed 24...

• Calculating Power for Unique Split Phase Set Up

Hello all,

My question today is related to a PV system that utilizes two 120 V inverters with a common neutral that generate sinusiods 180deg...

• Current calculation in 75 hp

How do you calculate the current from a

75 hp motor, 3 phase, 460 Volt?

Hello,

I have a 600V 3phase feeding a control cabinet that will include:

1x 1.5HP 3 phase motor FLA 2.4A
1x 3HP 3 phase...

• Load for a self-serve yogurt store

Hi,
I am a consumer and new in this forum. I am planning to open a self-serve yogurt store with 6 yogurt machines. If anyone here has previously...

• Secondary Current Calculations

If I have the primary currents (unbalanced) of a delta-wye transformer how do I calculate the secondary currents? An example would be helpful
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