{"id":2061,"date":"2026-01-10T17:07:55","date_gmt":"2026-01-10T09:07:55","guid":{"rendered":"https:\/\/zmgs-global.com\/?p=2061"},"modified":"2026-04-03T17:17:15","modified_gmt":"2026-04-03T09:17:15","slug":"how-to-test-an-industrial-power-capacitor","status":"publish","type":"post","link":"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html","title":{"rendered":"\u0643\u064a\u0641 \u062a\u062e\u062a\u0628\u0631 \u0645\u0643\u062b\u0641 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u0635\u0646\u0627\u0639\u064a\u0629\u061f"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2061\" class=\"elementor elementor-2061\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-75666b8 e-flex e-con-boxed e-con e-parent\" data-id=\"75666b8\" 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-84600ad elementor-widget elementor-widget-text-editor\" data-id=\"84600ad\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Walking into a control room or opening a heavy industrial distribution cabinet often feels like stepping into the lungs of a factory. There is a hum, a distinct smell of warmed metal and insulation, and rows of components doing heavy lifting. Among them, the industrial <a href=\"https:\/\/zmgs-global.com\/ar\/products\/\"><strong>\u0645\u0643\u062b\u0641 \u0627\u0644\u0637\u0627\u0642\u0629<\/strong><\/a> is a silent workhorse, correcting power factor and stabilizing voltage. But when they start to fail, they don&#8217;t always give a warning sign like a flashing light. Sometimes, they just stop working efficiently, or worse, they fail spectacularly. Knowing how to test these units is not just about maintenance; it is about preventing a very loud and expensive problem down the line.<\/p><p>Testing a large power capacitor isn&#8217;t quite the same as checking a AA battery. It involves high voltage, stored energy, and a bit of patience. It\u2019s an observational process as much as a technical one, requiring you to look, smell, and measure carefully.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb5d95c elementor-widget elementor-widget-heading\" data-id=\"cb5d95c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u062c\u062f\u0648\u0644 \u0627\u0644\u0645\u062d\u062a\u0648\u064a\u0627\u062a<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html\/#Safety_First_When_Handling_a_Power_Capacitor\" >Safety First When Handling a Power Capacitor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html\/#Visual_Inspection_of_the_Industrial_Power_Capacitor\" >Visual Inspection of the Industrial Power Capacitor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html\/#Testing_with_a_Digital_Multimeter_Basic_Method\" >Testing with a Digital Multimeter (Basic Method)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html\/#Advanced_Diagnostics_Using_an_LCR_Meter\" >Advanced Diagnostics Using an LCR Meter<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html\/#Interpreting_Results_and_Deciding_on_Replacement\" >Interpreting Results and Deciding on Replacement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html\/#Resource\" >Resource<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/zmgs-global.com\/ar\/how-to-test-an-industrial-power-capacitor.html\/#FAQ\" >\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Safety_First_When_Handling_a_Power_Capacitor\"><\/span>Safety First When Handling a Power Capacitor<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f106e2 elementor-widget elementor-widget-text-editor\" data-id=\"5f106e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Before pulling out any meters, the elephant in the room must be addressed: safety. Industrial capacitors are designed to store lethal amounts of energy. Even if the main breaker is pulled and the machine has been off for an hour, a healthy\u00a0power capacitor\u00a0can still hold a charge strong enough to cause serious injury.<\/p><p>It is a common practice\u2014and a necessary one\u2014to assume the unit is live until proven otherwise. Most industrial units have &#8220;bleeder resistors&#8221; meant to drain the charge automatically, but relying on them blindly is a gamble experienced technicians rarely take.<\/p><ul><li><strong>Lockout\/Tagout (LOTO):<\/strong>\u00a0Ensure the main power source is disconnected and locked.<\/li><li><strong>Manual Discharge:<\/strong>\u00a0Using a properly rated discharge probe or a resistor network to bridge the terminals is essential. You might see a spark or hear a snap; that\u2019s the sound of safety being restored.<\/li><li><strong>Verify Voltage:<\/strong>\u00a0Use a voltmeter to confirm there is zero potential across the terminals before touching anything.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c8635e elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"7c8635e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/mediumslateblue-chimpanzee-835813.hostingersite.com\/wp-content\/uploads\/2025\/12\/Low-Voltage-Power-Capacitor.webp\" class=\"attachment-full size-full wp-image-1597\" alt=\"\u0645\u0643\u062b\u0641 \u0637\u0627\u0642\u0629 \u0645\u0646\u062e\u0641\u0636 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0645\u0646\u062e\u0641\u0636\" srcset=\"https:\/\/zmgs-global.com\/wp-content\/uploads\/2025\/12\/Low-Voltage-Power-Capacitor.webp 800w, https:\/\/zmgs-global.com\/wp-content\/uploads\/2025\/12\/Low-Voltage-Power-Capacitor-150x150.webp 150w, https:\/\/zmgs-global.com\/wp-content\/uploads\/2025\/12\/Low-Voltage-Power-Capacitor-768x768.webp 768w, https:\/\/zmgs-global.com\/wp-content\/uploads\/2025\/12\/elementor\/thumbs\/Low-Voltage-Power-Capacitor-rg7ziya89az9jg0d8ezobcubseikkhnrdzhwchz1k0.webp 400w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d060788 elementor-widget elementor-widget-heading\" data-id=\"d060788\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Visual_Inspection_of_the_Industrial_Power_Capacitor\"><\/span>Visual Inspection of the Industrial Power Capacitor<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5e4c8f elementor-widget elementor-widget-text-editor\" data-id=\"f5e4c8f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Often, you don&#8217;t even need a meter to know a capacitor is toast. The physical condition tells a story of the stress the component has been under. When you shine a flashlight into the cabinet, look for distortions. A healthy industrial capacitor usually looks clean, with flat surfaces and secure terminals.<\/p><p>A failing unit, on the other hand, looks tired.<\/p><ul><li><strong>Bulging:<\/strong>\u00a0If the safety vent on the top is domed or the casing looks swollen, the internal pressure has risen too high. It is effectively done.<\/li><li><strong>Leaks:<\/strong>\u00a0Oil or dielectric fluid pooling at the base or dripping from the terminals is a clear fail.<\/li><li><strong>Discoloration:<\/strong>\u00a0Burn marks near the terminals often indicate loose connections or arcing.<\/li><\/ul><p>If you see these signs, there is really no need to proceed with electrical testing. The component needs to be retired.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e33c4b8 elementor-widget elementor-widget-heading\" data-id=\"e33c4b8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Testing_with_a_Digital_Multimeter_Basic_Method\"><\/span>Testing with a Digital Multimeter (Basic Method)<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4d03bab elementor-widget elementor-widget-text-editor\" data-id=\"4d03bab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>If the\u00a0power capacitor\u00a0passes the visual check, the next step involves checking its electrical properties. While a standard digital multimeter isn&#8217;t as precise as specialized equipment, it can give a quick &#8220;Go\/No-Go&#8221; indication.<\/p><p>To get an accurate reading, the capacitor must be isolated from the circuit. Trying to test it while it is still wired to the motor or the grid will only give you a ghost reading, as the meter measures the resistance of the rest of the circuit instead of the capacitor itself.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ec1c76 elementor-widget elementor-widget-heading\" data-id=\"1ec1c76\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The Resistance Check<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c1cab32 elementor-widget elementor-widget-text-editor\" data-id=\"c1cab32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Set the multimeter to the Ohms (resistance) setting. When you touch the probes to the capacitor terminals, watch the screen closely.<\/p><ol><li>The resistance should start low (near zero).<\/li><li>It should rapidly climb as the battery in the meter charges the capacitor.<\/li><li>Eventually, it should show &#8220;OL&#8221; (Open Loop) or infinite resistance.<\/li><\/ol><p>If the meter stays at zero, the capacitor is shorted internally. If it stays at &#8220;OL&#8221; immediately without climbing, it might be open (broken internally). It\u2019s a crude test, but it works for a quick field assessment.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36bcf7d elementor-widget elementor-widget-heading\" data-id=\"36bcf7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">The Capacitance Check<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-88a8baf elementor-widget elementor-widget-text-editor\" data-id=\"88a8baf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Many modern industrial multimeters have a dedicated capacitor symbol. This is more straightforward. Connect the probes, wait a few seconds for the meter to calculate, and compare the number on the screen to the label on the can.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-00ee4a1 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"00ee4a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/mediumslateblue-chimpanzee-835813.hostingersite.com\/wp-content\/uploads\/2025\/07\/high-voltage-power-capacitor.jpg\" class=\"attachment-full size-full wp-image-268\" alt=\"\u0645\u0643\u062b\u0641 \u0627\u0644\u0637\u0627\u0642\u0629\" srcset=\"https:\/\/zmgs-global.com\/wp-content\/uploads\/2025\/07\/high-voltage-power-capacitor.jpg 600w, https:\/\/zmgs-global.com\/wp-content\/uploads\/2025\/07\/high-voltage-power-capacitor-150x150.jpg 150w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3dcb45 elementor-widget elementor-widget-heading\" data-id=\"e3dcb45\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Advanced_Diagnostics_Using_an_LCR_Meter\"><\/span>Advanced Diagnostics Using an LCR Meter<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-615d9a1 elementor-widget elementor-widget-text-editor\" data-id=\"615d9a1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For critical infrastructure, a simple capacitance check might not be enough. A\u00a0<a href=\"https:\/\/zmgs-global.com\/ar\/products\/high-voltage-power-capacitor\/\"><strong>\u0645\u0643\u062b\u0641 \u0637\u0627\u0642\u0629 \u0639\u0627\u0644\u064a\u0629 \u0627\u0644\u062c\u0647\u062f \u0627\u0644\u0639\u0627\u0644\u064a<\/strong><\/a>\u00a0can often display the correct capacitance value but still be failing due to high Equivalent Series Resistance (ESR). This is where the internal components degrade and resist the flow of current, generating heat.<\/p><p>An LCR meter (Inductance-Capacitance-Resistance meter) is the tool of choice here. It sends an AC signal through the capacitor to measure how it reacts to changing frequencies, revealing hidden faults that a standard multimeter would miss.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ef5efcd elementor-widget elementor-widget-text-editor\" data-id=\"ef5efcd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div style=\"overflow-x: auto;\">\n  <table style=\"border-collapse: collapse; width: 100%;\">\n    <thead>\n      <tr style=\"background-color: #f2f2f2;\">\n        <th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; color: black; font-weight: bold;\">Diagnostic Metric<\/th>\n        <th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; color: black; font-weight: bold;\">Healthy Capacitor Indication<\/th>\n        <th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; color: black; font-weight: bold;\">Failing Capacitor Indication<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n      <tr>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Capacitance Value<\/strong><\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">Within \u00b15% or \u00b110% of the rated label value.<\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">Significantly lower (dried out) or zero (open circuit).<\/td>\n      <\/tr>\n      <tr>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>ESR (Internal Resistance)<\/strong><\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">Very low (typically milliohms).<\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">High resistance reading; indicates internal degradation.<\/td>\n      <\/tr>\n      <tr>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Physical Temperature<\/strong><\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">Runs cool or slightly warm during operation.<\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">Hot to the touch compared to neighboring units.<\/td>\n      <\/tr>\n      <tr>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Visual State<\/strong><\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">Flat top, no leaks, clean terminals.<\/td>\n        <td style=\"border: 1px solid #ddd; padding: 8px;\">Bulging top, oil leaks, or soot around vents.<\/td>\n      <\/tr>\n    <\/tbody>\n  <\/table>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4ffccb8 elementor-widget elementor-widget-heading\" data-id=\"4ffccb8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Interpreting_Results_and_Deciding_on_Replacement\"><\/span>Interpreting Results and Deciding on Replacement<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1817017 elementor-widget elementor-widget-text-editor\" data-id=\"1817017\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>So, you have your numbers. Now what? Generally, industrial standards suggest that if a\u00a0power capacitor\u00a0has lost more than 10% of its rated capacitance, it is time to swap it out. The efficiency losses and the risk of harmonic resonance usually outweigh the cost of a new unit.<\/p><p>It is also worth noting that capacitors in a bank tend to age together. If you find one bad unit in a bank of six, it is often a smart move to test the others rigorously or replace the whole set. When sourcing replacements, opting for established brands like\u00a0Grey Marble\u00a0can reduce the frequency of these maintenance checks, as higher-quality dielectrics tend to resist aging better. It saves having to shut down the plant again a month later when the next one fails.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e62dcd6 elementor-widget elementor-widget-heading\" data-id=\"e62dcd6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"Resource\"><\/span>Resource<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-195a430 elementor-widget elementor-widget-text-editor\" data-id=\"195a430\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>For further reading on electrical safety standards and the physics behind capacitance, refer to these authoritative sources:<\/p><ul><li><a href=\"http:\/\/www.fluke.com\/en-us\/learn\/blog\/digital-multimeters\/how-to-measure-capacitance\" target=\"_blank\" rel=\"noopener\"><strong>Fluke Education: Capacitance Measurement<\/strong><\/a>: A technical guide from a leading instrument manufacturer detailing the practical steps and theory behind testing capacitors with digital multimeters.<\/li><li><a href=\"http:\/\/en.wikipedia.org\/wiki\/Electrolytic_capacitor\" target=\"_blank\" rel=\"noopener\"><strong>Wikipedia: Electrolytic Capacitor: <\/strong><\/a>\u00a0Offers an in-depth look at the construction, failure modes, and chemical composition of the types of capacitors most frequently found in power applications.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9fc2dce elementor-widget elementor-widget-heading\" data-id=\"9fc2dce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<span class=\"ez-toc-section-end\"><\/span><\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ebacc2d elementor-widget elementor-widget-n-accordion\" data-id=\"ebacc2d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;expanded&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"\u0627\u0644\u0623\u0643\u0648\u0631\u062f\u064a\u0648\u0646. \u0627\u0641\u062a\u062d \u0627\u0644\u0631\u0648\u0627\u0628\u0637 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 Enter \u0623\u0648 \u0627\u0644\u0645\u0633\u0627\u0641\u0629\u060c \u0648\u0623\u063a\u0644\u0642\u0647\u0627 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 Escape\u060c \u0648\u062a\u0646\u0642\u0644 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0641\u0627\u062a\u064a\u062d \u0627\u0644\u0623\u0633\u0647\u0645\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2470\" class=\"e-n-accordion-item\" open>\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"true\" aria-controls=\"e-n-accordion-item-2470\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Can I test a power capacitor while it is still connected to the circuit? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2470\" class=\"elementor-element elementor-element-d26e234 e-con-full e-flex e-con e-child\" data-id=\"d26e234\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7009eb1 elementor-widget elementor-widget-text-editor\" data-id=\"7009eb1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>No, you really shouldn&#8217;t. Other components in the circuit, like transformers or bleed resistors, will interfere with the reading. To get a true measurement of the\u00a0power capacitor, at least one terminal needs to be disconnected to isolate it.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2471\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2471\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What causes an industrial power capacitor to fail? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2471\" class=\"elementor-element elementor-element-4fe4f0e e-con-full e-flex e-con e-child\" data-id=\"4fe4f0e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4df11dc elementor-widget elementor-widget-text-editor\" data-id=\"4df11dc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Heat is the biggest enemy. High ambient temperatures, poor ventilation, or internal heat from high ESR can dry out the dielectric. Over-voltage surges and harmonic distortion from the grid also shorten their lifespan significantly.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-2472\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-2472\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Why does my multimeter show a reading that keeps changing?  <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-minus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h384c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-plus\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 208H272V64c0-17.67-14.33-32-32-32h-32c-17.67 0-32 14.33-32 32v144H32c-17.67 0-32 14.33-32 32v32c0 17.67 14.33 32 32 32h144v144c0 17.67 14.33 32 32 32h32c17.67 0 32-14.33 32-32V304h144c17.67 0 32-14.33 32-32v-32c0-17.67-14.33-32-32-32z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-2472\" class=\"elementor-element elementor-element-9d2c540 e-con-full e-flex e-con e-child\" data-id=\"9d2c540\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c5fb43f elementor-widget elementor-widget-text-editor\" data-id=\"c5fb43f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>If you are in resistance mode, this is actually a good sign! It means the capacitor is accepting a charge from the meter. If you are in capacitance mode, it might take a moment for the meter to stabilize, especially with large industrial units that hold a lot of energy.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\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":"Walking into a control room or opening a heavy industrial distribution cabinet often feels like stepping into the lungs of a factory. There is a hum, a distinct smell of warmed metal and insulation, and rows of components doing heavy lifting. Among them, the industrial power capacitor is a silent workhorse, correcting power factor and [&hellip;]","protected":false},"author":8,"featured_media":761,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46,47],"tags":[55],"class_list":["post-2061","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","category-knowledge","tag-power-capacitor"],"acf":[],"_links":{"self":[{"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/posts\/2061","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/comments?post=2061"}],"version-history":[{"count":0,"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/posts\/2061\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/media\/761"}],"wp:attachment":[{"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/media?parent=2061"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/categories?post=2061"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zmgs-global.com\/ar\/wp-json\/wp\/v2\/tags?post=2061"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}