{"id":2328,"date":"2026-08-04T09:00:00","date_gmt":"2026-08-04T01:00:00","guid":{"rendered":"https:\/\/cnbygele.com\/blog\/tunnel-ventilation-fan-vfd-harmonics-pcc\/"},"modified":"2026-08-24T17:24:52","modified_gmt":"2026-08-24T09:24:52","slug":"tunnel-ventilation-fan-vfd-harmonics-pcc","status":"publish","type":"post","link":"https:\/\/cnbygele.com\/vi\/blog\/tunnel-ventilation-fan-vfd-harmonics-pcc\/","title":{"rendered":"Tunnel Ventilation VFD Harmonics: PCC Logging Guide"},"content":{"rendered":"<div class=\"b2b-article\">\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Road and rail tunnels modulate ventilation fans with traffic density and incident modes, so VFD harmonic current at the ventilation feeder changes with operating mode rather than with a fixed schedule.<\/strong> Assessing tunnel ventilation fan VFD harmonics starts with mode-labeled measurements at the feeder or PCC.<\/p>\n<nav class=\"b2b-toc\" style=\"background:#f5f8fa;padding:16px 20px;border-radius:8px;margin:0 0 24px\">\n<h2 id=\"contents\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">M\u1ee5c l\u1ee5c<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a href=\"#choose-the-ventilation-measurement-boundary\">Choose the ventilation measurement boundary<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#separate-smoke-control-claims-from-harmonic-claims\">Separate smoke-control claims from harmonic claims<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#shortlist-after-mode-labeled-evidence-exists\">Shortlist after mode-labeled evidence exists<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#assemble-a-tunnel-mode-rfq-evidence-pack\">Assemble a tunnel-mode RFQ evidence pack<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#integration-in-constrained-tunnel-niches\">Integration in constrained tunnel niches<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"#tunnel-project-inquiry-package\">Tunnel project inquiry package<\/a><\/li>\n<\/ul>\n<\/nav>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"direct-answer\">Tr\u1ea3 l\u1eddi tr\u1ef1c ti\u1ebfp<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Road and rail tunnels modulate ventilation fans with traffic density and incident modes, so VFD harmonic current at the ventilation feeder changes with operating mode rather than with a fixed schedule. Assessing tunnel ventilation fan VFD harmonics starts with mode-labeled measurements at the feeder or PCC.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Traffic operations and electrical mitigation scopes should not share a single acceptance sentence. CNBYG can review AHF\/APF fit when measured harmonic current is defined. This guide does not confirm smoke-control certification, traffic throughput targets, or a guaranteed harmonic result. See <a href=\"https:\/\/cnbygele.com\/vi\/power-quality-system-guides\/\">H\u01b0\u1edbng d\u1eabn K\u1ef9 thu\u1eadt H\u1ec7 th\u1ed1ng Ch\u1ea5t l\u01b0\u1ee3ng \u0110i\u1ec7n<\/a>.<\/p>\n<figure class=\"wp-block-image size-large\" style=\"clear:both;display:block;margin:28px 0;float:none;width:100%;\"><img decoding=\"async\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/static-var-compensation-system-design-basics-product-1.webp\" alt=\"Tunnel ventilation fan VFD harmonics at PCC and feeders\" class=\"alignnone size-large\" style=\"display:block;max-width:640px;height:auto;float:none;margin:0 auto;\" \/><\/figure>\n<p style=\"clear:both;margin:0;padding:0;height:0;line-height:0;\">&nbsp;<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"choose-the-ventilation-measurement-boundary\">Choose the ventilation measurement boundary<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Ventilation MCC feeders characterize fan groups; the tunnel PCC answers a utility-boundary question. Record CT data, fan stage counts, and control mode with every capture.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">For longitudinal jet fans and axial ventilation fans on VFDs, cover normal traffic ventilation, congestion boost, incident extract, fire-mode tests, and overnight maintenance. Record fan stage counts and control mode for each window, because incident and fire-test modes can dominate the spectrum briefly.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">M\u1ed9t h\u1ed3 s\u01a1 ti\u1ec1n RFQ th\u1ef1c t\u1ebf cho \u1ee9ng d\u1ee5ng n\u00e0y th\u01b0\u1eddng bao g\u1ed3m:<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">Single-line of ventilation substations and fan feeders.<\/li>\n<li style=\"margin:0 0 8px\">Spectra for normal traffic and labeled incident-test windows.<\/li>\n<li style=\"margin:0 0 8px\">Notes linked to the tunnel ventilation operating mode.<\/li>\n<li style=\"margin:0 0 8px\">Existing compensation on the tunnel electrical system.<\/li>\n<li style=\"margin:0 0 8px\">Demand trends across a representative traffic day plus one test mode.<\/li>\n<\/ul>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Tunnel log focus<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Attachment needed<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Quy\u1ebft \u0111\u1ecbnh \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Activity at the monitored ventilation feeder<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">D\u1ea3i t\u1ea7n hi\u1ec7n t\u1ea1i, xu h\u01b0\u1edbng RMS, tr\u1ea1ng th\u00e1i t\u1ea3i, tham chi\u1ebfu CT<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u0110\u1eb7c t\u00ednh ngu\u1ed3n c\u1ee5c b\u1ed9<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ho\u1ea1t \u0111\u1ed9ng t\u1ea1i ranh gi\u1edbi h\u1ec7 th\u1ed1ng<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Xu h\u01b0\u1edbng \u0111i\u1ec7n \u00e1p\/d\u00f2ng \u0111i\u1ec7n, d\u1eef li\u1ec7u m\u00e1y bi\u1ebfn \u00e1p v\u00e0 th\u01b0\u1ee3ng ngu\u1ed3n<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ph\u1ea1m vi gi\u1ea3m thi\u1ec3u ranh gi\u1edbi<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Repeatability across traffic-day and incident-test cycles<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Nhi\u1ec1u c\u1eeda s\u1ed5 v\u1eadn h\u00e0nh \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">L\u1eadp k\u1ebf ho\u1ea1ch c\u00f4ng su\u1ea5t v\u00e0 v\u1eadn h\u00e0nh th\u1eed<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Thi\u1ebft b\u1ecb \u0111\u00e3 k\u1ebft n\u1ed1i<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ki\u1ec3m k\u00ea b\u1ea3o v\u1ec7, b\u00f9 \u0111\u1eafp m\u1ed9t d\u00f2ng<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u0110\u00e1nh gi\u00e1 t\u01b0\u01a1ng t\u00e1c v\u00e0 h\u1ed9i nh\u1eadp<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Quan tr\u1ecdng:<\/strong> Do not size mitigation from normal-traffic data alone when the objective includes incident extract modes (Source: <a href=\"https:\/\/cnbygele.com\/vi\/blog\/vfd-harmonics-industrial-plants-apf-selection\/\">\u0110o s\u00f3ng h\u00e0i bi\u1ebfn t\u1ea7n (VFD) v\u00e0 l\u1ef1a ch\u1ecdn b\u1ed9 l\u1ecdc t\u00edch c\u1ef1c (APF)<\/a>). Fire-test staging can dominate short windows.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"separate-smoke-control-claims-from-harmonic-claims\">Separate smoke-control claims from harmonic claims<\/h2>\n<figure class=\"wp-block-image size-large\" style=\"clear:both;display:block;margin:28px 0;float:none;width:100%;\"><img decoding=\"async\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/static-var-compensation-system-design-basics-body-2.webp\" alt=\"Traffic-mode and fan staging harmonic measurement context\" class=\"alignnone size-large\" style=\"display:block;max-width:640px;height:auto;float:none;margin:0 auto;\" \/><\/figure>\n<p style=\"clear:both;margin:0;padding:0;height:0;line-height:0;\">&nbsp;<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Smoke-control certification and harmonic mitigation are different engineering tracks. A distorted waveform does not prove a ventilation control failure.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">S\u1eed d\u1ee5ng <a href=\"https:\/\/standards.ieee.org\/ieee\/519\/5892\/\" rel=\"nofollow noopener\" target=\"_blank\">T\u1ed5ng quan v\u1ec1 IEEE 519<\/a> for boundary vocabulary, then write tunnel-specific operating cases into the RFQ.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Operators should also record jet-fan versus axial-fan identity in each window, because those machines sit on different feeders in many tunnels. Keep a short note on traffic-density band or incident code next to the electrical log so operations and electrical teams can reconcile timestamps during RFQ review. Those notes are short, but they keep tunnel mode windows comparable for quotation.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"shortlist-after-mode-labeled-evidence-exists\">Shortlist after mode-labeled evidence exists<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">AHF\/APF fits harmonic-current reduction at the tunnel electrical PCC or main substation. SVG may fit reactive swings during fan ramps. Passive options need a study that includes incident modes if those modes are in scope.<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Danh m\u1ee5c gi\u1ea3m nh\u1eb9<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">H\u1eefu \u00edch khi<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">X\u00e1c nh\u1eadn tr\u01b0\u1edbc khi g\u1eedi y\u00eau c\u1ea7u b\u00e1o gi\u00e1<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">AHF \/ APF<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Harmonic-current reduction at the tunnel electrical PCC or main substation is documented<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ph\u1ed5, k\u1ebf ho\u1ea1ch CT, \u0111\u01b0\u1eddng d\u1eabn nhi\u1ec7t, b\u1ea3o v\u1ec7, ki\u1ec3m tra nghi\u1ec7m thu<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">SVG \/ ASVG<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">H\u1ed7 tr\u1ee3 c\u00f4ng su\u1ea5t ph\u1ea3n kh\u00e1ng nhanh l\u00e0 m\u1ee5c ti\u00eau ch\u00ednh<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">H\u1ed3 s\u01a1 \u0111i\u1ec7n \u00e1p, thi\u1ebft b\u1ecb b\u00f9 hi\u1ec7n c\u00f3, \u0111i\u1ec1u khi\u1ec3n, v\u1eadn h\u00e0nh th\u1eed<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Tinh ch\u1ec9nh th\u1ee5 \u0111\u1ed9ng<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">M\u1ed9t nghi\u00ean c\u1ee9u h\u1ec7 th\u1ed1ng cho th\u1ea5y m\u1ed9t ch\u1ee9c n\u0103ng \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u1ed5n \u0111\u1ecbnh ho\u1eb7c b\u1ecb l\u1ec7ch \u0111i\u1ec1u ch\u1ec9nh<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">\u0110\u00e1nh gi\u00e1 c\u1ed9ng h\u01b0\u1edfng, ch\u00ednh s\u00e1ch chuy\u1ec3n \u0111\u1ed5i, quy\u1ec1n truy c\u1eadp b\u1ea3o tr\u00ec<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Thay \u0111\u1ed5i v\u1eadn h\u00e0nh<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">L\u00ean l\u1ecbch ho\u1eb7c d\u00e0n d\u1ef1ng ca l\u00e0m vi\u1ec7c thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 nhu c\u1ea7u<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ch\u1ee7 s\u1edf h\u1eefu ph\u00ea duy\u1ec7t v\u00e0 t\u00e0i li\u1ec7u h\u00f3a vi\u1ec7c tri\u1ec3n khai<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"assemble-a-tunnel-mode-rfq-evidence-pack\">Assemble a tunnel-mode RFQ evidence pack<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Before suppliers quote, assemble mode-labeled ventilation spectra, fan-stage tables, CT notes, and a marked-up tunnel single-line. State whether the decision is local fan troubleshooting, PCC assessment, or harmonic-current mitigation. Keep normal-traffic and incident-test windows in separate folders.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Require the quote to name covered orders, niche humidity ratings, and acceptance tests. Include headroom for future fan stages and list compensation already installed. Assign who records mode labels and who signs acceptance after traffic closures.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Add niche space constraints, traffic-closure windows, and a glossary of ventilation modes so incident-test files are not averaged with normal traffic. Include CT polarity checks, sample intervals, and a note describing fan stage counts during each capture. Record expected spare headroom for future fan stages and keep the acceptance checklist owner named before quotation begins.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Xem l\u1ea1i <a href=\"https:\/\/cnbygele.com\/vi\/product\/ahf-active-harmonic-filter-harmonic-control\/\">Trang B\u1ed9 l\u1ecdc s\u00f3ng h\u00e0i t\u00edch c\u1ef1c CNBYG AHF<\/a> with mode-labeled ventilation files. The commercial planning guide on <a href=\"https:\/\/cnbygele.com\/vi\/blog\/power-quality-system-planning-for-commercial-buildings\/\">commercial building power quality planning<\/a> shows a related boundary-first approach.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"integration-in-constrained-tunnel-niches\">Integration in constrained tunnel niches<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Document niche space, humidity ratings, cable routes, and permitted traffic closures. Acceptance should replay mode labels from the baseline set.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">The related building-systems scenario in <a href=\"https:\/\/cnbygele.com\/vi\/blog\/vfd-harmonics-industrial-plants-apf-selection\/\">\u0110o s\u00f3ng h\u00e0i bi\u1ebfn t\u1ea7n (VFD) v\u00e0 l\u1ef1a ch\u1ecdn b\u1ed9 l\u1ecdc t\u00edch c\u1ef1c (APF)<\/a> shows how mode labels support acceptance after constrained outages.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"tunnel-project-inquiry-package\">Tunnel project inquiry package<\/h2>\n<figure class=\"wp-block-image size-large\" style=\"clear:both;display:block;margin:28px 0;float:none;width:100%;\"><img decoding=\"async\" src=\"https:\/\/cnbygele.com\/wp-content\/uploads\/2026\/07\/static-var-compensation-system-design-basics-cover-2.webp\" alt=\"CNBYG AHF product context for tunnel ventilation VFD feeders\" class=\"alignnone size-large\" style=\"display:block;max-width:640px;height:auto;float:none;margin:0 auto;\" \/><\/figure>\n<p style=\"clear:both;margin:0;padding:0;height:0;line-height:0;\">&nbsp;<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Provide single-line drawings, mode-labeled spectra, fan inventory, compensation details, and connection preferences. CNBYG can discuss fit and should not guarantee smoke-control certification, traffic throughput targets, or a guaranteed harmonic result. Contact the <a href=\"https:\/\/cnbygele.com\/vi\/contact-us\/\">Trang li\u00ean h\u1ec7 CNBYG<\/a>.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"frequently-asked-questions\">C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3 style=\"margin:28px 0 12px\">Should fire-mode tests be included in harmonic logs?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Include them as labeled special windows if the mitigation objective must cover incident modes; keep them separate from normal-traffic baselines.<\/p>\n<h3 style=\"margin:28px 0 12px\">Where is the preferred first measurement point?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Start at the ventilation MCC or tunnel substation feeder, then add the PCC when the objective is utility-boundary compliance discussion.<\/p>\n<h3 style=\"margin:28px 0 12px\">Can normal-traffic data alone size mitigation for incident modes?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Not reliably. Incident and extract modes change fan staging and coincidence enough to need dedicated captures.<\/p>\n<h3 style=\"margin:28px 0 12px\">M\u1ed9t ph\u00e9p \u0111o c\u00f3 \u0111\u1ee7 \u0111\u1ec3 l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb gi\u1ea3m thi\u1ec3u hay kh\u00f4ng?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Rarely for tunnels. Traffic modes, incident tests, and objective definition decide whether the record is representative.<\/p>\n<h3 style=\"margin:28px 0 12px\">Can mitigation equipment be sized from fan nameplate data alone?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">No. Nameplates are context; measured spectra and mode logs drive capacity review.<\/p>\n<h3 style=\"margin:28px 0 12px\">B\u00e0i vi\u1ebft n\u00e0y c\u00f3 \u0111\u1ea3m b\u1ea3o k\u1ebft qu\u1ea3 v\u1ec1 m\u1eb7t tu\u00e2n th\u1ee7 ho\u1eb7c v\u1eadn h\u00e0nh kh\u00f4ng?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">No. Smoke-control certification, network conditions, and commissioning remain project-specific.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"references\">T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/standards.ieee.org\/ieee\/519\/5892\/\" rel=\"nofollow noopener\" target=\"_blank\">IEEE 519 harmonic-control context for tunnel ventilation fan vfd harmonics projects<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/www.nema.org\/standards\/view\/motors-and-generators\" rel=\"nofollow noopener\" target=\"_blank\">NEMA MG 1 motor-system background for tunnel ventilation fan vfd harmonics reviews<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a href=\"https:\/\/highways.dot.gov\/\" rel=\"nofollow noopener\" target=\"_blank\">United States FHWA highway and tunnel infrastructure resources<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Road and rail tunnels modulate ventilation fans with traffic density and incident modes, so VFD harmonic current at the ventilation feeder changes with operating mode rather than with a fixed schedule. Assessing tunnel ventilation fan VFD harmonics starts with mode-labeled measurements at the feeder or PCC. Contents Choose the ventilation measurement boundary Separate smoke-control claims [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-2328","post","type-post","status-publish","format-standard","hentry","category-blog"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":7}},"acf":[],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/comments?post=2328"}],"version-history":[{"count":1,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2328\/revisions"}],"predecessor-version":[{"id":2505,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/posts\/2328\/revisions\/2505"}],"wp:attachment":[{"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/media?parent=2328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/categories?post=2328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cnbygele.com\/vi\/wp-json\/wp\/v2\/tags?post=2328"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}