{"id":2221,"date":"2026-07-28T10:09:31","date_gmt":"2026-07-28T10:09:31","guid":{"rendered":"http:\/\/147.182.176.68\/?post_type=product&p=2221"},"modified":"2026-07-28T10:09:31","modified_gmt":"2026-07-28T10:09:31","slug":"tvr-step-voltage-regulator-voltage-booster","status":"publish","type":"product","link":"https:\/\/puwoelec.com\/zh\/product\/tvr-step-voltage-regulator-voltage-booster\/","title":{"rendered":"TVR-STEP Voltage Regulator\/Voltage Booster"},"content":{"rendered":"

Normal Operating Conditions
\n\u25cfAltitude: Below 3,000 metres (customisable for special altitudes)
\n\u25cfOperating temperature: -25\u00b0C to 65\u00b0C (customisable for special
\ntemperatures)
\n\u25cfMonthly average humidity: 90% at 25\u00b0C
\n\u25cfPollution class: Class III
\n\u25cfRated voltage: 11\/22\/33 kV (customisable)
\n\u25cfRated capacity: 500 kVA\u201310,000 kVA
\n\u25cfOperating frequency: 50\/60 Hz
\n\u25cfConnection group: Three-phase, three-wire, single-winding
\nstar\/delta
\n\u25cfTap changer positions: 9\/11\/13\/17\/27\/32 positions
\n\u25cfCooling method: Oil-immersed, self-cooled (ONAN)
\n\u25cfVoltage Transformer (PT): 10,000\/100 V, 50 VA
\n\u25cfTransformer (CT): XXX\/1 A, dual-meter method
\n\u25cfThird winding rated voltage: 220 V
\n\u25cfAdjustment range: (-10% to +10%), (-5% to +15%), (0 to
\n+20%), (0 to +30%) (customisable)<\/p>\n

Key Technical Specifications<\/p>\n

\"\"<\/p>\n

\"\"<\/p>","protected":false},"excerpt":{"rendered":"

Normal Operating Conditions \u25cfAltitude: Below 3,000 metres (customisable for special altitudes) \u25cfOperating temperature: -25\u00b0C to 65\u00b0C (customisable for special temperatures) \u25cfMonthly average humidity: 90% at 25\u00b0C \u25cfPollution class: Class III \u25cfRated voltage: 11\/22\/33 kV (customisable) \u25cfRated capacity: 500 kVA\u201310,000 kVA \u25cfOperating frequency: 50\/60 Hz \u25cfConnection group: Three-phase, three-wire, single-winding star\/delta \u25cfTap changer positions: 9\/11\/13\/17\/27\/32 positions […]<\/p>\n","protected":false},"featured_media":2224,"comment_status":"open","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[30,22],"product_tag":[],"class_list":["post-2221","product","type-product","status-publish","has-post-thumbnail","product_cat-oil-immersed-transformer","product_cat-power-transformers","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"\nTVR-STEP Voltage Regulator\/Voltage Booster - Puwo Electric Power Equipment<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/147.182.176.68\/product\/tvr-step-voltage-regulator-voltage-booster\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TVR-STEP Voltage Regulator\/Voltage Booster - Puwo Electric Power Equipment\" \/>\n<meta property=\"og:description\" content=\"Normal Operating Conditions \u25cfAltitude: Below 3,000 metres (customisable for special altitudes) \u25cfOperating temperature: -25\u00b0C to 65\u00b0C (customisable for special temperatures) \u25cfMonthly average humidity: 90% at 25\u00b0C \u25cfPollution class: Class III \u25cfRated voltage: 11\/22\/33 kV (customisable) \u25cfRated capacity: 500 kVA\u201310,000 kVA \u25cfOperating frequency: 50\/60 Hz \u25cfConnection group: Three-phase, three-wire, single-winding star\/delta \u25cfTap changer positions: 9\/11\/13\/17\/27\/32 positions […]\" \/>\n<meta property=\"og:url\" content=\"http:\/\/147.182.176.68\/product\/tvr-step-voltage-regulator-voltage-booster\/\" \/>\n<meta property=\"og:site_name\" content=\"Puwo Electric Power Equipment\" \/>\n<meta property=\"og:image\" content=\"http:\/\/147.182.176.68\/wp-content\/uploads\/2026\/07\/TVR-A33.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1838\" \/>\n\t<meta property=\"og:image:height\" content=\"1821\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"http:\\\/\\\/147.182.176.68\\\/product\\\/tvr-step-voltage-regulator-voltage-booster\\\/\",\"url\":\"http:\\\/\\\/147.182.176.68\\\/product\\\/tvr-step-voltage-regulator-voltage-booster\\\/\",\"name\":\"TVR-STEP Voltage Regulator\\\/Voltage Booster - 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