Symfony Profiler

Components

4 Twig Components

8 Render Count

11 ms Render Time

94.0 MiB Memory Usage

Components

Name	Metadata	Render Count	Render Time
ProductState	"App\Twig\Components\ProductState" components/ProductState.html.twig	3	0.73ms
ProductMostRecent	"App\Twig\Components\ProductMostRecent" components/ProductMostRecent.html.twig	3	2.19ms
ProductType	"App\Twig\Components\ProductType" components/ProductType.html.twig	1	0.21ms
ProductCard	"App\Twig\Components\ProductCard" components/ProductCard.html.twig	1	8.65ms

Render calls

ProductState	App\Twig\Components\ProductState	66.0 MiB	0.31 ms
Input props	["product" => App\Entity\Product\Product {#7311 #id: 10270 #code: "IEEE00004044" #attributes: Doctrine\ORM\PersistentCollection {#7701 …} #variants: Doctrine\ORM\PersistentCollection {#7744 …} #options: Doctrine\ORM\PersistentCollection {#7916 …} #associations: Doctrine\ORM\PersistentCollection {#7900 …} #createdAt: DateTime @1751038952 {#7274 date: 2025-06-27 17:42:32.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1754607611 {#7322 date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#7922 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#7921 #locale: "en_US" #translatable: App\Entity\Product\Product {#7311} #id: 36089 #name: "IEEE 1415:2006" #slug: "ieee-1415-2006-ieee00004044-241922" #description: """ New IEEE Standard - Inactive-Reserved.<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. It addresses the following machine systems: Stator (Winding and Core) Rotor (Winding and Core) Vibration and Noise Bearings and Shafts Structure, Frame Ventilation Accessories. This guide is intended for use by personnel at the facility or corporate office responsible for the operation and maintenance of large induction machines. It is a guide to aid the thought processes and procedures necessary to determine root causes for failures.<br />\n \t\t\t\t<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. The guide addresses the following machine systems:<br />\n — Stator (winding and wore)<br />\n — Rotor (winding and core)<br />\n — Vibration and noise<br />\n — Bearings and shafts<br />\n — Structure, frame<br />\n — Ventilation<br />\n — Accessories<br />\n This document is intended for the following purposes:<br />\n — To provide guidance concerning the appropriateness of various maintenance tests and interpreting the results of those tests with respect to failure analysis and to routine predictive maintenance activities<br />\n — To provide a methodology by which the most probable cause of any particular machine failure may be<br />\n determined<br />\n — To encourage the establishment of routine and uniform data collection so valuable facts of the failure are not destroyed<br />\n — To facilitate cooperative efforts by users and manufacturers during failure analysis """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Guide for Induction Machinery Maintenance Testing and Failure Analysis" -notes: "Inactive-Reserved" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …} #channels: Doctrine\ORM\PersistentCollection {#7628 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#7613 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#7645 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …} -apiLastModifiedAt: DateTime @1754517600 {#7317 date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00) } -lastUpdatedAt: DateTime @1618783200 {#7292 date: 2021-04-19 00:00:00.0 Europe/Paris (+02:00) } -author: "" -publishedAt: DateTime @1177884000 {#7318 date: 2007-04-30 00:00:00.0 Europe/Paris (+02:00) } -releasedAt: null -confirmedAt: null -canceledAt: DateTime @1616626800 {#7316 date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00) } -edition: null -coreDocument: "1415" -bookCollection: "" -pageCount: 68 -documents: Doctrine\ORM\PersistentCollection {#7465 …} -favorites: Doctrine\ORM\PersistentCollection {#7500 …} } "showFullLabel" => "true"]
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Component	App\Twig\Components\ProductState {#93067+product: App\Entity\Product\Product {#7311 #id: 10270 #code: "IEEE00004044" #attributes: Doctrine\ORM\PersistentCollection {#7701 …} #variants: Doctrine\ORM\PersistentCollection {#7744 …} #options: Doctrine\ORM\PersistentCollection {#7916 …} #associations: Doctrine\ORM\PersistentCollection {#7900 …} #createdAt: DateTime @1751038952 {#7274 date: 2025-06-27 17:42:32.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1754607611 {#7322 date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#7922 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#7921 #locale: "en_US" #translatable: App\Entity\Product\Product {#7311} #id: 36089 #name: "IEEE 1415:2006" #slug: "ieee-1415-2006-ieee00004044-241922" #description: """ New IEEE Standard - Inactive-Reserved.<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. It addresses the following machine systems: Stator (Winding and Core) Rotor (Winding and Core) Vibration and Noise Bearings and Shafts Structure, Frame Ventilation Accessories. This guide is intended for use by personnel at the facility or corporate office responsible for the operation and maintenance of large induction machines. It is a guide to aid the thought processes and procedures necessary to determine root causes for failures.<br />\n \t\t\t\t<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. The guide addresses the following machine systems:<br />\n — Stator (winding and wore)<br />\n — Rotor (winding and core)<br />\n — Vibration and noise<br />\n — Bearings and shafts<br />\n — Structure, frame<br />\n — Ventilation<br />\n — Accessories<br />\n This document is intended for the following purposes:<br />\n — To provide guidance concerning the appropriateness of various maintenance tests and interpreting the results of those tests with respect to failure analysis and to routine predictive maintenance activities<br />\n — To provide a methodology by which the most probable cause of any particular machine failure may be<br />\n determined<br />\n — To encourage the establishment of routine and uniform data collection so valuable facts of the failure are not destroyed<br />\n — To facilitate cooperative efforts by users and manufacturers during failure analysis """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Guide for Induction Machinery Maintenance Testing and Failure Analysis" -notes: "Inactive-Reserved" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …} #channels: Doctrine\ORM\PersistentCollection {#7628 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#7613 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#7645 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …} -apiLastModifiedAt: DateTime @1754517600 {#7317 date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00) } -lastUpdatedAt: DateTime @1618783200 {#7292 date: 2021-04-19 00:00:00.0 Europe/Paris (+02:00) } -author: "" -publishedAt: DateTime @1177884000 {#7318 date: 2007-04-30 00:00:00.0 Europe/Paris (+02:00) } -releasedAt: null -confirmedAt: null -canceledAt: DateTime @1616626800 {#7316 date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00) } -edition: null -coreDocument: "1415" -bookCollection: "" -pageCount: 68 -documents: Doctrine\ORM\PersistentCollection {#7465 …} -favorites: Doctrine\ORM\PersistentCollection {#7500 …} } +appearance: "state-withdrawn" +labels: [ "Withdrawn" ] -stateAttributeCode: "state" -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}}

ProductState

App\Twig\Components\ProductState

66.0 MiB

0.31 ms

Input props

[
  "product" => App\Entity\Product\Product {#7311
    #id: 10270
    #code: "IEEE00004044"
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          New IEEE Standard - Inactive-Reserved.<br />\n
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          This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. The guide addresses the following machine systems:<br />\n
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          — Bearings and shafts<br />\n
          — Structure, frame<br />\n
          — Ventilation<br />\n
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          This document is intended for the following purposes:<br />\n
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          — To provide a methodology by which the most probable cause of any particular machine failure may be<br />\n
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          — To facilitate cooperative efforts by users and manufacturers during failure analysis
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        #metaKeywords: null
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        #shortDescription: "IEEE Guide for Induction Machinery Maintenance Testing and Failure Analysis"
        -notes: "Inactive-Reserved"
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    -documents: Doctrine\ORM\PersistentCollection {#7465 …}
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]

Attributes

[
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]

Component

App\Twig\Components\ProductState {#93067
  +product: App\Entity\Product\Product {#7311
    #id: 10270
    #code: "IEEE00004044"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
    #variants: Doctrine\ORM\PersistentCollection {#7744 …}
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    #createdAt: DateTime @1751038952 {#7274
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        #id: 36089
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        #description: """
          New IEEE Standard - Inactive-Reserved.<br />\n
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          — Rotor (winding and core)<br />\n
          — Vibration and noise<br />\n
          — Bearings and shafts<br />\n
          — Structure, frame<br />\n
          — Ventilation<br />\n
          — Accessories<br />\n
          This document is intended for the following purposes:<br />\n
          — To provide guidance concerning the appropriateness of various maintenance tests and interpreting the results of those tests with respect to failure analysis and to routine predictive maintenance activities<br />\n
          — To provide a methodology by which the most probable cause of any particular machine failure may be<br />\n
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          — To facilitate cooperative efforts by users and manufacturers during failure analysis
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        #metaKeywords: null
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        #shortDescription: "IEEE Guide for Induction Machinery Maintenance Testing and Failure Analysis"
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}

ProductType	App\Twig\Components\ProductType	68.0 MiB	0.21 ms
Input props	["product" => App\Entity\Product\Product {#7311 #id: 10270 #code: "IEEE00004044" #attributes: Doctrine\ORM\PersistentCollection {#7701 …} #variants: Doctrine\ORM\PersistentCollection {#7744 …} #options: Doctrine\ORM\PersistentCollection {#7916 …} #associations: Doctrine\ORM\PersistentCollection {#7900 …} #createdAt: DateTime @1751038952 {#7274 date: 2025-06-27 17:42:32.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1754607611 {#7322 date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#7922 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#7921 #locale: "en_US" #translatable: App\Entity\Product\Product {#7311} #id: 36089 #name: "IEEE 1415:2006" #slug: "ieee-1415-2006-ieee00004044-241922" #description: """ New IEEE Standard - Inactive-Reserved.<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. It addresses the following machine systems: Stator (Winding and Core) Rotor (Winding and Core) Vibration and Noise Bearings and Shafts Structure, Frame Ventilation Accessories. This guide is intended for use by personnel at the facility or corporate office responsible for the operation and maintenance of large induction machines. It is a guide to aid the thought processes and procedures necessary to determine root causes for failures.<br />\n \t\t\t\t<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. The guide addresses the following machine systems:<br />\n — Stator (winding and wore)<br />\n — Rotor (winding and core)<br />\n — Vibration and noise<br />\n — Bearings and shafts<br />\n — Structure, frame<br />\n — Ventilation<br />\n — Accessories<br />\n This document is intended for the following purposes:<br />\n — To provide guidance concerning the appropriateness of various maintenance tests and interpreting the results of those tests with respect to failure analysis and to routine predictive maintenance activities<br />\n — To provide a methodology by which the most probable cause of any particular machine failure may be<br />\n determined<br />\n — To encourage the establishment of routine and uniform data collection so valuable facts of the failure are not destroyed<br />\n — To facilitate cooperative efforts by users and manufacturers during failure analysis """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Guide for Induction Machinery Maintenance Testing and Failure Analysis" -notes: "Inactive-Reserved" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …} #channels: Doctrine\ORM\PersistentCollection {#7628 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#7613 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#7645 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …} -apiLastModifiedAt: DateTime @1754517600 {#7317 date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00) } -lastUpdatedAt: DateTime @1618783200 {#7292 date: 2021-04-19 00:00:00.0 Europe/Paris (+02:00) } -author: "" -publishedAt: DateTime @1177884000 {#7318 date: 2007-04-30 00:00:00.0 Europe/Paris (+02:00) } -releasedAt: null -confirmedAt: null -canceledAt: DateTime @1616626800 {#7316 date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00) } -edition: null -coreDocument: "1415" -bookCollection: "" -pageCount: 68 -documents: Doctrine\ORM\PersistentCollection {#7465 …} -favorites: Doctrine\ORM\PersistentCollection {#7500 …} }]
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Component	App\Twig\Components\ProductType {#93247+product: App\Entity\Product\Product {#7311 #id: 10270 #code: "IEEE00004044" #attributes: Doctrine\ORM\PersistentCollection {#7701 …} #variants: Doctrine\ORM\PersistentCollection {#7744 …} #options: Doctrine\ORM\PersistentCollection {#7916 …} #associations: Doctrine\ORM\PersistentCollection {#7900 …} #createdAt: DateTime @1751038952 {#7274 date: 2025-06-27 17:42:32.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1754607611 {#7322 date: 2025-08-08 01:00:11.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#7922 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#7921 #locale: "en_US" #translatable: App\Entity\Product\Product {#7311} #id: 36089 #name: "IEEE 1415:2006" #slug: "ieee-1415-2006-ieee00004044-241922" #description: """ New IEEE Standard - Inactive-Reserved.<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. It addresses the following machine systems: Stator (Winding and Core) Rotor (Winding and Core) Vibration and Noise Bearings and Shafts Structure, Frame Ventilation Accessories. This guide is intended for use by personnel at the facility or corporate office responsible for the operation and maintenance of large induction machines. It is a guide to aid the thought processes and procedures necessary to determine root causes for failures.<br />\n \t\t\t\t<br />\n This guide provides maintenance testing and failure analysis guidance for form-wound, squirrel cage, induction machinery rated up to 15 kV. The guide addresses the following machine systems:<br />\n — Stator (winding and wore)<br />\n — Rotor (winding and core)<br />\n — Vibration and noise<br />\n — Bearings and shafts<br />\n — Structure, frame<br />\n — Ventilation<br />\n — Accessories<br />\n This document is intended for the following purposes:<br />\n — To provide guidance concerning the appropriateness of various maintenance tests and interpreting the results of those tests with respect to failure analysis and to routine predictive maintenance activities<br />\n — To provide a methodology by which the most probable cause of any particular machine failure may be<br />\n determined<br />\n — To encourage the establishment of routine and uniform data collection so valuable facts of the failure are not destroyed<br />\n — To facilitate cooperative efforts by users and manufacturers during failure analysis """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Guide for Induction Machinery Maintenance Testing and Failure Analysis" -notes: "Inactive-Reserved" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#7534 …} #channels: Doctrine\ORM\PersistentCollection {#7628 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#7613 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#7645 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#7321 …} -apiLastModifiedAt: DateTime @1754517600 {#7317 date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00) } -lastUpdatedAt: DateTime @1618783200 {#7292 date: 2021-04-19 00:00:00.0 Europe/Paris (+02:00) } -author: "" -publishedAt: DateTime @1177884000 {#7318 date: 2007-04-30 00:00:00.0 Europe/Paris (+02:00) } -releasedAt: null -confirmedAt: null -canceledAt: DateTime @1616626800 {#7316 date: 2021-03-25 00:00:00.0 Europe/Paris (+01:00) } -edition: null -coreDocument: "1415" -bookCollection: "" -pageCount: 68 -documents: Doctrine\ORM\PersistentCollection {#7465 …} -favorites: Doctrine\ORM\PersistentCollection {#7500 …} } +label: "Standard" -typeAttributeCode: "type" -localeContext: Sylius\Component\Locale\Context\CompositeLocaleContext {#1833 …}}

ProductType

App\Twig\Components\ProductType

68.0 MiB

0.21 ms

Input props

[
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    #id: 10270
    #code: "IEEE00004044"
    #attributes: Doctrine\ORM\PersistentCollection {#7701 …}
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ProductCard

App\Twig\Components\ProductCard

94.0 MiB

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ProductState

App\Twig\Components\ProductState

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ProductMostRecent	App\Twig\Components\ProductMostRecent	94.0 MiB	0.67 ms
Input props	["product" => App\Entity\Product\Product {#121786 #id: 8276 #code: "IEEE00000190" #attributes: Doctrine\ORM\PersistentCollection {#121769 …} #variants: Doctrine\ORM\PersistentCollection {#121767 …} #options: Doctrine\ORM\PersistentCollection {#121762 …} #associations: Doctrine\ORM\PersistentCollection {#121764 …} #createdAt: DateTime @1751037280 {#121759 date: 2025-06-27 17:14:40.0 Europe/Paris (+02:00) } #updatedAt: DateTime @1754606304 {#121794 date: 2025-08-08 00:38:24.0 Europe/Paris (+02:00) } #enabled: true #translations: Doctrine\ORM\PersistentCollection {#121780 …} #translationsCache: [ "en_US" => App\Entity\Product\ProductTranslation {#121880 #locale: "en_US" #translatable: App\Entity\Product\Product {#121786} #id: 28113 #name: "IEEE 43:2000 (R2006)" #slug: "ieee-43-2000-r2006-ieee00000190-239928" #description: """ Revision Standard - Superseded.<br />\n This document describes the recommended procedure for measuring insulation resis-tance of armature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. Con-tained within this document is the general theory of insulation resistance (IR) and polarization index (P.I.), as well as factors affecting the results, test procedures, methods of interpretation, test limita-tions, and recommended minimum values.<br />\n \t\t\t\t<br />\n This document describes a recommended procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. It does not apply to fractional-horsepower machines. The document also describes typical insulation resistance characteristics of rotating machine windings and how these characteristics indicate winding condition. It recommends minimum acceptable values of insulation resistance for ac and dc rotating machine windings. Othere IEEE standards that include information on insulation resistance measurement are listed in Clause 2.<br />\n The purpose of this recommended practice is to<br />\n a) Define insulation resistance and polarization index testing of the winding of a rotating machine.<br />\n b) Review the factors that affect or change insulation resistance characteristics.<br />\n c) Recommend uniform test conditions.<br />\n d) Recommend uniform methods for measuring insulation resistance with precautions to avoid<br />\n erroneous results.<br />\n e) Provide a basis for interpreting insulation resistance test results to estimate winding suitability for service or for an overvoltage test. In particular, this standard describes typical insulation problems detected by the insulation resistance test.<br />\n f) Present recommended minimum acceptable insulation resistance values and polarization indices for<br />\n various types of rotating machines. """ #metaKeywords: null #metaDescription: null #shortDescription: "IEEE Recommended Practice for Testing Insulation Resistance of Rotating Machinery" -notes: "Superseded" } ] #currentLocale: "en_US" #currentTranslation: null #fallbackLocale: "en_US" #variantSelectionMethod: "match" #productTaxons: Doctrine\ORM\PersistentCollection {#121778 …} #channels: Doctrine\ORM\PersistentCollection {#121771 …} #mainTaxon: Proxies\__CG__\App\Entity\Taxonomy\Taxon {#7309 …} #reviews: Doctrine\ORM\PersistentCollection {#121775 …} #averageRating: 0.0 #images: Doctrine\ORM\PersistentCollection {#121773 …} -supplier: Proxies\__CG__\App\Entity\Supplier\Supplier {#7324 …} -subscriptionCollections: Doctrine\ORM\PersistentCollection {#121788 …} -apiLastModifiedAt: DateTime @1754517600 {#121745 date: 2025-08-07 00:00:00.0 Europe/Paris (+02:00) } -lastUpdatedAt: DateTime @1704927600 {#121793 date: 2024-01-11 00:00:00.0 Europe/Paris (+01:00) } -author: "" -publishedAt: DateTime @953766000 {#121752 date: 2000-03-23 00:00:00.0 Europe/Paris (+01:00) } -releasedAt: null -confirmedAt: DateTime @1143669600 {#121765 date: 2006-03-30 00:00:00.0 Europe/Paris (+02:00) } -canceledAt: null -edition: null -coreDocument: "43" -bookCollection: "" -pageCount: 28 -documents: Doctrine\ORM\PersistentCollection {#121784 …} -favorites: Doctrine\ORM\PersistentCollection {#121782 …} }]
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ProductMostRecent

App\Twig\Components\ProductMostRecent

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        #description: """
          Revision Standard - Superseded.<br />\n
          This document describes the recommended procedure for measuring insulation resis-tance of armature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. Con-tained within this document is the general theory of insulation resistance (IR) and polarization index (P.I.), as well as factors affecting the results, test procedures, methods of interpretation, test limita-tions, and recommended minimum values.<br />\n
          \t\t\t\t<br />\n
          This document describes a recommended procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. It does not apply to fractional-horsepower machines. The document also describes typical insulation resistance characteristics of rotating machine windings and how these characteristics indicate winding condition. It recommends minimum acceptable values of insulation resistance for ac and dc rotating machine windings. Othere IEEE standards that include information on insulation resistance measurement are listed in Clause 2.<br />\n
          The purpose of this recommended practice is to<br />\n
          a) Define insulation resistance and polarization index testing of the winding of a rotating machine.<br />\n
          b) Review the factors that affect or change insulation resistance characteristics.<br />\n
          c) Recommend uniform test conditions.<br />\n
          d) Recommend uniform methods for measuring insulation resistance with precautions to avoid<br />\n
          erroneous results.<br />\n
          e) Provide a basis for interpreting insulation resistance test results to estimate winding suitability for service or for an overvoltage test. In particular, this standard describes typical insulation problems detected by the insulation resistance test.<br />\n
          f) Present recommended minimum acceptable insulation resistance values and polarization indices for<br />\n
          various types of rotating machines.
          """
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          Revision Standard - Superseded.<br />\n
          This document describes the recommended procedure for measuring insulation resis-tance of armature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. Con-tained within this document is the general theory of insulation resistance (IR) and polarization index (P.I.), as well as factors affecting the results, test procedures, methods of interpretation, test limita-tions, and recommended minimum values.<br />\n
          \t\t\t\t<br />\n
          This document describes a recommended procedure for measuring insulation resistance of armature and field windings in rotating machines rated 1 hp, 750 W or greater. It applies to synchronous machines, induction machines, dc machines, and synchronous condensers. It does not apply to fractional-horsepower machines. The document also describes typical insulation resistance characteristics of rotating machine windings and how these characteristics indicate winding condition. It recommends minimum acceptable values of insulation resistance for ac and dc rotating machine windings. Othere IEEE standards that include information on insulation resistance measurement are listed in Clause 2.<br />\n
          The purpose of this recommended practice is to<br />\n
          a) Define insulation resistance and polarization index testing of the winding of a rotating machine.<br />\n
          b) Review the factors that affect or change insulation resistance characteristics.<br />\n
          c) Recommend uniform test conditions.<br />\n
          d) Recommend uniform methods for measuring insulation resistance with precautions to avoid<br />\n
          erroneous results.<br />\n
          e) Provide a basis for interpreting insulation resistance test results to estimate winding suitability for service or for an overvoltage test. In particular, this standard describes typical insulation problems detected by the insulation resistance test.<br />\n
          f) Present recommended minimum acceptable insulation resistance values and polarization indices for<br />\n
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