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For Factor Factor Body Current Conductors Duration Available For Ground For Sizing Total Fault % Projection % Division

This document provides input data for modeling a grounding system including: - System data such as fault current, frequency, weight, and temperature - Soil properties of surface material, upper layer soil, and lower layer soil - Material constants for the ground conductors and rods - Rod data including diameter, length, number of rods, and cost - Grid configuration including dimensions, number of conductors, separation, and cost - Total cost calculation for the conductors and rods.

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ArdenJaneCabatuan-ValePadua
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61 views1 page

For Factor Factor Body Current Conductors Duration Available For Ground For Sizing Total Fault % Projection % Division

This document provides input data for modeling a grounding system including: - System data such as fault current, frequency, weight, and temperature - Soil properties of surface material, upper layer soil, and lower layer soil - Material constants for the ground conductors and rods - Rod data including diameter, length, number of rods, and cost - Grid configuration including dimensions, number of conductors, separation, and cost - Total cost calculation for the conductors and rods.

Uploaded by

ArdenJaneCabatuan-ValePadua
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Project:

ETAP Page: 1
12.6.0H
Location: Date: 01-04-2021
Contract: SN:
Engineer: Study Case: GRD1 Filename: GROUNDING SYSTEM
Revision: Base

Ground Grid Input Data

System Data:

Short-Circuit Current Fault Duration (Seconds)


Total Sf Cp Tf Tc Ts
Ambient Fault Division Projection for for Sizing for
Freq. Weight Temp. Current Factor Factor Total Fault Ground Available
Hz kg °C kA X/R % % Duration Conductors Body Current
50.0 50 40.00 40.000 40.00 20.0 100.0 0.50 0.50 0.50

Soil Data:

Surface Material Upper Layer Soil Lower Layer Soil


Resistivity Depth Resistivity Depth Resistivity
Material Type Ohm.m m Material Type Ohm.m m MaterialType Ohm.m
Crushed rock 4267.2 1.000 Moist soil 100.0 4.00 Bedrock 9999.0

Material Constants: Resistivity of Thermal


r Factor Fusing Ground Conducto Capacity
Conductivity @ 20 °C K0 @ Temperatur @ 20°C Per Unit
Conductor/Rod Type % 1/°C 0 °C e
°C micro ohm.cm Volume
J/(cm³.°C)

Conductor & Rod Copper-clad steel wire 1 40.0 0.00378 245.0 1084.0 4.40 3.85

Rod Data:

Diameter Length No. of Cost


cm m Rods Arrangement $/Rod
0.900 3.00 10 Rods in Grid Corners 700.00

Grid Configuration:

Grid Length m Number of Conductors Separation m


Conductor
Size Depth in X in Y in X in Y Cost
mm² m Lx Ly Direction Direction Direction Direction $/m
120 1.00 108.00 84.00 19 13 9.0 4.7 720.00 Shape: Rectangular

Cost:

Conductor Rod
Total Total Length Cost Total Total Length Cost Total Cost
No. m $ No. m $ $
32 3144.00 2263680.00 10 30.00 7000.00 2270680.00

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