Apr 16, 2026
v.0
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Get This App On Your Website
1. Copy the code above with the iframe and link.
2. Paste the code into your website.
3. Resize the iframe to fit your website.
2. Paste the code into your website.
3. Resize the iframe to fit your website.
Javascript, HTML, CSS Code
<html>
<head>
<script type="text/javascript"> window.addEventListener('error', function(event) { var message = JSON.parse(JSON.stringify(event.message)); var source = event.filename; var lineno = event.lineno; var colno = event.colno; var error = event.error; window.parent.postMessage({ type: 'iframeError', details: { message: message, source: source, lineno: lineno, colno: colno, error: error ? error.stack : '' } }, '*'); }); window.addEventListener('unhandledrejection', function(event) { window.parent.postMessage({ type: 'iframePromiseRejection', details: { reason: event.reason } }, '*'); }); </script>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Industrial Generator Sizing Calculator</title>
<meta name="description" content="A professional industrial generator sizing calculator that computes your generator needs based on load and environmental factors.">
<meta name="keywords" content="Generator, Sizing Calculator, Industrial Generator, kW, kVA, Power Factor, Load Calculation, Motor Starting Method">
<!-- Libraries -->
<!-- jQuery (3.6.0) -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js" crossorigin="anonymous"></script>
<!-- Bootstrap CSS (5.3.3) -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" crossorigin="anonymous">
<!-- Bootstrap JS (5.3.3) -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.min.js" crossorigin="anonymous">
</script>
<!-- Font Awesome (6.6.0) -->
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.6.0/css/fontawesome.min.css" crossorigin="anonymous">
<script type="text/javascript">
try {
document.addEventListener("DOMContentLoaded", function() {
document.getElementById("calculate").onclick = function() {
let runningLoad = parseFloat(document.getElementById("runningLoad").value);
let largestMotor = parseFloat(document.getElementById("largestMotor").value);
let motorStartingMethod = document.getElementById("motorStartingMethod").value;
let powerFactor = parseFloat(document.getElementById("powerFactor").value) || 0.8;
let temperature = parseFloat(document.getElementById("temperature").value);
let altitude = parseFloat(document.getElementById("altitude").value);
let futureExpansion = parseFloat(document.getElementById("futureExpansion").value) || 0;
let baseKVA = (runningLoad / powerFactor) * (1 + futureExpansion / 100);
let motorStartingMultiplier = motorStartingMethod === "star" ? 1.2 : 1.5;
let kVAStart = largestMotor / powerFactor * motorStartingMultiplier;
let requiredKVA = Math.max(baseKVA, kVAStart);
let safetyMargin = requiredKVA * 1.25;
let tempDerateFactor = (temperature - 25) * 0.01;
let altitudeDerateFactor = (altitude > 3000) ? (altitude - 3000) * 0.002 : 0;
let finalKVA = safetyMargin * (1 - tempDerateFactor - altitudeDerateFactor);
finalKVA = Math.max(finalKVA, 0);
let generatorSize = (finalKVA < 100) ? "Denyo" : (finalKVA > 600 ? "Mitsubishi" : "General");
document.getElementById("output").innerHTML = `
<h4>Final kVA Required: ${finalKVA.toFixed(2)} kVA</h4>
<h5>Suggested Generator Size: <strong>${generatorSize}</strong></h5>
`;
};
});
} catch (error) {
throw error;
}
</script>
<style>
body {
background: linear-gradient(to right, #3a6073, #3a3a3a);
color: #ffffff;
font-family: Arial, sans-serif;
}
#main-container {
background: rgba(0, 0, 0, 0.7);
border-radius: 15px;
padding: 30px;
margin-top: 30px;
}
h4, h5 {
margin-top: 20px;
}
input[type="number"], select {
margin-top: 10px;
}
button {
background-color: #1de9b6;
color: #333;
border: none;
border-radius: 5px;
padding: 10px;
cursor: pointer;
}
button:hover {
background-color: #0ec49a;
}
</style>
<link rel="canonical" href="https://calculator.tools/app/industrial-generator-sizing-calculator-1841/">
<meta charset="utf-8">
</head>
<body>
<div id="main-container" class="container">
<h2>Industrial Generator Sizing Calculator</h2>
<form>
<div class="mb-3">
<label for="runningLoad" class="form-label">Running Load (kW)</label>
<input type="number" id="runningLoad" class="form-control" required>
</div>
<div class="mb-3">
<label for="largestMotor" class="form-label">Largest Motor (kW)</label>
<input type="number" id="largestMotor" class="form-control" required>
</div>
<div class="mb-3">
<label for="motorStartingMethod" class="form-label">Motor Starting Method</label>
<select id="motorStartingMethod" class="form-select">
<option value="star">Star</option>
<option value="delta">Delta</option>
</select>
</div>
<div class="mb-3">
<label for="powerFactor" class="form-label">Power Factor (default 0.8)</label>
<input type="number" id="powerFactor" class="form-control" step="0.01" placeholder="0.8">
</div>
<div class="mb-3">
<label for="temperature" class="form-label">Temperature (°C)</label>
<input type="number" id="temperature" class="form-control">
</div>
<div class="mb-3">
<label for="altitude" class="form-label">Altitude (m)</label>
<input type="number" id="altitude" class="form-control">
</div>
<div class="mb-3">
<label for="futureExpansion" class="form-label">Future Expansion (%)</label>
<input type="number" id="futureExpansion" class="form-control" placeholder="0">
</div>
<button type="button" id="calculate">Calculate</button>
</form>
<div id="output"></div>
</div>
<script type="text/javascript"> var localStoragePrefix = "ct-1841"; var lastSave = 0; function saveLocal(data) { if (Date.now() - lastSave < 1000) { return; } let cookie = localStoragePrefix + "=" + JSON.stringify(data) + "; path=" + window.location.pathname + "'; SameSite=Strict"; cookie += "; expires=" + new Date(Date.now() + 1000 * 60 * 60 * 24 * 365 * 1000).toUTCString(); document.cookie = cookie; lastSave = Date.now(); } function loadLocal() { var cookiePrefix = localStoragePrefix + "="; var cookieStart = document.cookie.indexOf(cookiePrefix); if (cookieStart > -1) { let cookieEnd = document.cookie.indexOf(";", cookieStart); if (cookieEnd == -1) { cookieEnd = document.cookie.length; } var cookieData = document.cookie.substring(cookieStart + cookiePrefix.length, cookieEnd); return JSON.parse(cookieData); } } </script>
<script type="text/javascript"> window.addEventListener('load', function() { var observer = new MutationObserver(function() { window.parent.postMessage({height: document.documentElement.scrollHeight || document.body.scrollHeight},"*"); }); observer.observe(document.body, {attributes: true, childList: true, subtree: true}); window.parent.postMessage({height: document.documentElement.scrollHeight || document.body.scrollHeight},"*"); }); </script>
</body>
</html>
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