{"id":16417,"date":"2025-07-23T14:45:43","date_gmt":"2025-07-23T19:45:43","guid":{"rendered":"https:\/\/etac.ca\/?page_id=16417"},"modified":"2025-08-05T09:38:47","modified_gmt":"2025-08-05T14:38:47","slug":"substation-transformer-components-part-1","status":"publish","type":"page","link":"https:\/\/etac.ca\/es\/articles\/substation-transformer-components-part-1\/","title":{"rendered":"Substation Transformer Components | ETAC (Part 1)"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"16417\" class=\"elementor elementor-16417\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-22c185f e-flex e-con-boxed e-con e-parent\" data-id=\"22c185f\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-6615d11 elementor-widget elementor-widget-heading\" data-id=\"6615d11\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Substation Transformer Components | ETAC (Part 1)<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f8d9944 elementor-widget__width-initial elementor-widget elementor-widget-text-editor\" data-id=\"f8d9944\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>An overview of the Key Components of a Substation Transformer<\/p><p class=\"font_8 wixui-rich-text__text\">July 25, 2025<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-ce8bc55 e-flex e-con-boxed e-con e-parent\" data-id=\"ce8bc55\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d0f2bd0 elementor-widget elementor-widget-text-editor\" data-id=\"d0f2bd0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Substation transformers are normally equipped with more complex features and gauges than small sized padmount. This article in Part 1 reviews key <span style=\"font-weight: bold;\">Substation Transformer Components<\/span> necessary for a safe and efficient operation.<\/p><p><\/p><p><span data-teams=\"true\">To explore substation transformer components in action, view our <a href=\"https:\/\/etac.ca\/es\/products\/transformers\/substation-transformer\/\">substation transformer<\/a> product line designed for industrial and utility needs.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff396ab elementor-widget elementor-widget-image\" data-id=\"ff396ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Components-Substation-Transformer-Diagram.png\" data-elementor-open-lightbox=\"yes\" data-e-action-hash=\"#elementor-action%3Aaction%3Dlightbox%26settings%3DeyJpZCI6MTY1NDIsInVybCI6Imh0dHBzOlwvXC9ldGFjLmNhXC93cC1jb250ZW50XC91cGxvYWRzXC8yMDI1XC8wN1wvQ29tcG9uZW50cy1TdWJzdGF0aW9uLVRyYW5zZm9ybWVyLURpYWdyYW0ucG5nIn0%3D\">\n\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"389\" src=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Components-Substation-Transformer-Diagram.png\" class=\"attachment-large size-large wp-image-16542\" alt=\"Components of a substation Transformer - Part 1 - ETAC Service &amp; Supply Inc.\" \/>\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Components of a Substation Transformer Diagram<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c7d3fc elementor-widget elementor-widget-text-editor\" data-id=\"6c7d3fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Liquid Level Indicator:<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5815032 elementor-widget elementor-widget-text-editor\" data-id=\"5815032\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The design ensures that the insulating oil, which is crucial for cooling and insulation, is maintained at an optimal level. The indicator provides a clear, easy-to-read dial or sight gauge showing the oil level. Many liquid-level indicators have adjustable alarm contacts to warn operators of high or low oil conditions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8727574 elementor-widget elementor-widget-image\" data-id=\"8727574\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"1000\" src=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Substation-Transformer-Liquid-Level-Indicator.jpg\" class=\"attachment-large size-large wp-image-16481\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-697dd1f elementor-widget elementor-widget-text-editor\" data-id=\"697dd1f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Pressure\/Vacuum Gauge:<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-607e3e5 elementor-widget elementor-widget-text-editor\" data-id=\"607e3e5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In a transformer, the internal oil and gas space expands and contracts with load changes and ambient temperature variations. In a sealed transformer, the tank must maintain safe internal pressure to prevent air and moisture from entering the insulation system. Pressure\/Vacuum Gauge measures and displays the internal gas pressure inside the transformer tank relative to the external (atmospheric) pressure.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84904b3 elementor-widget elementor-widget-image\" data-id=\"84904b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"1000\" src=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/PressureVacuum-Gauge.jpg\" class=\"attachment-large size-large wp-image-16485\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64c871f elementor-widget elementor-widget-text-editor\" data-id=\"64c871f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Liquid Temperature Indicator (LTI):<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0fd6e10 elementor-widget elementor-widget-text-editor\" data-id=\"0fd6e10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Also called an Oil Temperature Indicator (OTI), this is a critical device installed on liquid-filled substation transformers. Its main role is to measure and display the temperature of the transformer\u2019s insulating oil, which directly affects the unit\u2019s safe operation and lifespan. The top oil temperature is a vital parameter to indicate overloading, cooling system failures, or developing internal faults.\u00a0<\/p><p>Excessive heat also degrades the transformer\u2019s insulation over time, shortening its life expectancy. LTI uses built-in contacts to trigger alarms if the oil temperature exceeds safe limits, and these contacts can activate cooling fans or pumps in forced cooling systems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-059fe4b elementor-widget elementor-widget-image\" data-id=\"059fe4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1000\" src=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Temperature-Indicator-LTI.jpg\" class=\"attachment-large size-large wp-image-16487\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5b15371 e-flex e-con-boxed e-con e-parent\" data-id=\"5b15371\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f8d5c0d elementor-widget elementor-widget-text-editor\" data-id=\"f8d5c0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Winding Temperature Indicator (WTI):<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-71684ff elementor-widget elementor-widget-text-editor\" data-id=\"71684ff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Similar to a Liquid Temperature Indicator, the Winding Temperature Indicator measures the temperature of the transformer windings. Overheating windings can lead to insulation breakdown and internal faults. It usually has adjustable contacts to trigger alarms if the winding temperature exceeds preset limits.\u00a0<\/p><p>These contacts can also start or stop forced cooling systems, such as fans or oil pumps, to manage the temperature rise under high load. Many modern WTIs are integrated into digital transformer monitoring systems, with remote communication to SCADA or condition monitoring platforms for real-time data and trending.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a11a13d elementor-widget elementor-widget-image\" data-id=\"a11a13d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"1000\" src=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Winding-Temperature-Indicator-WTI.jpg\" class=\"attachment-large size-large wp-image-16488\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1013f13 elementor-widget elementor-widget-text-editor\" data-id=\"1013f13\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Sudden Pressure Relays<\/strong>:\u00a0<\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94d6d3e elementor-widget elementor-widget-text-editor\" data-id=\"94d6d3e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Its main function is to detect a rapid increase in internal gas pressure that could signal an incipient internal fault, such as an electrical arc, short circuit, or winding failure that generates gas bubbles or a sudden oil pressure surge inside the sealed tank, which can dramatically raise the tank\u2019s internal pressure in seconds. The relay detects pressure changes within fractions of a second and equipped with contacts for alarm and trip functions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c3d73bc elementor-widget elementor-widget-image\" data-id=\"c3d73bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Sudden-Pressure-Relays.jpg\" class=\"attachment-large size-large wp-image-16490\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a318fa4 elementor-widget elementor-widget-text-editor\" data-id=\"a318fa4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Pressure Relief Device (PRD)<\/strong><strong>:<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6266f0a elementor-widget elementor-widget-text-editor\" data-id=\"6266f0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The PRD is typically mounted on the main tank cover or top of the transformer. Its primary role is to protect the transformer tank from excessive internal pressure due to rapid pressure buildup from faults or abnormal conditions, by allowing this overpressure to escape in a controlled manner before the tank is damaged. A deflector cap directs vented oil safely away from the tank surface and nearby equipment, ensuring safe and reliable pressure relief operation.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3a4363 elementor-widget elementor-widget-image\" data-id=\"a3a4363\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"533\" src=\"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Pressure-Relief-Device-PRD.jpg\" class=\"attachment-large size-large wp-image-16495\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-dc87f19 e-flex e-con-boxed e-con e-parent\" data-id=\"dc87f19\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bb07a9f elementor-widget elementor-widget-text-editor\" data-id=\"bb07a9f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Control Box:<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-503421b elementor-widget elementor-widget-text-editor\" data-id=\"503421b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The control box, also called a control cabinet or control panel, is a secure, weatherproof enclosure mounted on the transformer that houses the monitoring, control, and protection devices. It provides both local and remote access to operational data and can integrate with SCADA or smart grid systems. Critical alarms and protection circuits connect through the control box, allowing these protective circuits to trip remote alarms to prevent equipment damage and unscheduled outages. The control box also manages auxiliary cooling systems, turning fans\/pump on and off by signals received from temperature gauges.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dc17404 elementor-widget elementor-widget-text-editor\" data-id=\"dc17404\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3><strong>Tap Changer:<\/strong><\/h3>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4bcc10 elementor-widget elementor-widget-text-editor\" data-id=\"f4bcc10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The voltage on a transmission line can vary due to load changes, line impedance, and generation variations. These fluctuations can cause the output voltage of a transformer to deviate from its rated value. Tap changers help compensate for these variations by changing the number of active turns in one of the transformer windings, usually the high-voltage winding. There are two main types of tap changers: Off-Load Tap Changer (OLTC) and On-Load Tap Changer (OLTC).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-024b1d9 e-flex e-con-boxed e-con e-parent\" data-id=\"024b1d9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-40caa53 elementor-widget elementor-widget-text-editor\" data-id=\"40caa53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>En <strong>ETAC<\/strong>, we design and build fully customizable substation and power transformers equipped with industry-standard gauges and smart monitoring systems. ETAC transformers are engineered to comply with CSA and IEEE standards and to operate reliably in diverse environments across North America. Whether you need basic monitoring or an advanced smart control package, ETAC\u2019s transformers help you operate safely, extend equipment life, and protect your investment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b939fa6 elementor-widget elementor-widget-text-editor\" data-id=\"b939fa6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5><strong>Related Articles:<\/strong><\/h5>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a7e9db7 elementor-widget elementor-widget-text-editor\" data-id=\"a7e9db7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul><li><a href=\"https:\/\/etac.ca\/es\/articles\/substation-transformer-vs-distribution-transformer\/\">Substation vs Distribution Transformer: Key Differences<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b781701 elementor-widget elementor-widget-button\" data-id=\"b781701\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/etac.ca\/es\/quote\/\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">GET YOUR QUOTE<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bba8744 e-flex e-con-boxed e-con e-parent\" data-id=\"bba8744\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e73c98e elementor-widget elementor-widget-html\" data-id=\"e73c98e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"Article\",\r\n  \"mainEntityOfPage\": {\r\n    \"@type\": \"WebPage\",\r\n    \"@id\": \"https:\/\/etac.ca\/articles\/substation-transformer-components-part-1\/\"\r\n  },\r\n  \"headline\": \"Substation Transformer Components | ETAC (Part 1)\",\r\n  \"keywords\": \"substation transformer components, substation transformer, substation transformer diagram\",\r\n  \"image\": \"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/Components-Substation-Transformer-Diagram.png\",\r\n  \"author\": {\r\n    \"@type\": \"Organization\",\r\n    \"name\": \"ETAC Service & Supply Inc.\",\r\n    \"url\": \"https:\/\/etac.ca\/\"\r\n  },\r\n  \"publisher\": {\r\n    \"@type\": \"Organization\",\r\n    \"name\": \"ETAC Service & Supply Inc.\",\r\n    \"logo\": {\r\n      \"@type\": \"ImageObject\",\r\n      \"url\": \"https:\/\/etac.ca\/wp-content\/uploads\/2025\/07\/ETAC-Favicon.png\",\r\n      \"width\": 60,\r\n      \"height\": 60\r\n    }\r\n  },\r\n  \"datePublished\": \"2025-07-23\",\r\n  \"dateModified\": \"2025-07-28\",\r\n  \"url\": \"https:\/\/etac.ca\/articles\/substation-transformer-components-part-1\/\"\r\n}\r\n<\/script>\r\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Substation Transformer Components | ETAC (Part 1) An overview of the Key Components of a Substation Transformer July 25, 2025 Substation transformers are normally equipped with more complex features and gauges than small sized padmount. This article in Part 1 reviews key Substation Transformer Components necessary for a safe and efficient operation. To explore substation [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":9649,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":""},"class_list":["post-16417","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Substation Transformer Components | ETAC (Part 1) - ETAC Service &amp; Supply Inc.<\/title>\n<meta name=\"description\" content=\"Discover ETAC Substation Transformer Components : gauges, relays, and control systems to improve safety, monitoring, and performance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/etac.ca\/es\/articles\/substation-transformer-components-part-1\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Substation Transformer Components | ETAC (Part 1) - ETAC Service &amp; 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