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<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"><url><loc>https://chenfanelectric.com/ja/engineering-videos/</loc></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/</loc></url><url><loc>https://chenfanelectric.com/engineering-videos/crgo-burr-height-interlaminar-current/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-009-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>CRGO Burr Height: How Edge Contacts Can Create Local Heating</video:title><video:description>Trace how a shear burr can bridge lamination insulation. When edge contacts close a conducting loop linked by changing magnetic flux, circulating current can create local heating. The video connects burr-height measurements with blade maintenance, cutting clearance, clamping and inspection records by lot.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/Y7b3uUCMgHY</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-009-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>CRGO Burr Height: How Edge Contacts Can Create Local Heating</video:title><video:description>Trace how a shear burr can bridge lamination insulation. When edge contacts close a conducting loop linked by changing magnetic flux, circulating current can create local heating. The video connects burr-height measurements with blade maintenance, cutting clearance, clamping and inspection records by lot.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/kydoTZtCeMc</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/crgo-burr-height-interlaminar-current/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-009-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>CRGOのばり高さ：端面の接触で局部発熱が起こる仕組み</video:title><video:description>せん断時のばりが切板間の絶縁をまたぐ仕組みを解説します。端面の接触で閉じた導電ループに変動磁束が鎖交すると、循環電流により局部発熱が生じることがあります。ばり高さの測定と、刃物の保守、切断クリアランス、締付け、ロットごとの検査記録の関係を確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/Y7b3uUCMgHY</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-009-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>CRGOのばり高さ：端面の接触で局部発熱が起こる仕組み</video:title><video:description>せん断時のばりが切板間の絶縁をまたぐ仕組みを解説します。端面の接触で閉じた導電ループに変動磁束が鎖交すると、循環電流により局部発熱が生じることがあります。ばり高さの測定と、刃物の保守、切断クリアランス、締付け、ロットごとの検査記録の関係を確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/kydoTZtCeMc</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/crgo-burr-height-interlaminar-current/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-009-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>CRGO 버 높이: 절단면 접촉이 국부 발열을 일으키는 원리</video:title><video:description>전단 가공에서 생긴 버가 강판 사이 절연층을 가로지를 수 있는 과정을 설명합니다. 절단면 접촉으로 닫힌 도전 루프에 변화하는 자속이 쇄교하면 순환 전류가 국부 발열을 일으킬 수 있습니다. 버 높이 측정과 날 정비, 절단 간극, 클램핑 및 로트별 검사 기록의 관계를 살펴봅니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/Y7b3uUCMgHY</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-009-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>CRGO 버 높이: 절단면 접촉이 국부 발열을 일으키는 원리</video:title><video:description>전단 가공에서 생긴 버가 강판 사이 절연층을 가로지를 수 있는 과정을 설명합니다. 절단면 접촉으로 닫힌 도전 루프에 변화하는 자속이 쇄교하면 순환 전류가 국부 발열을 일으킬 수 있습니다. 버 높이 측정과 날 정비, 절단 간극, 클램핑 및 로트별 검사 기록의 관계를 살펴봅니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/kydoTZtCeMc</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/step-lap-joint-geometry-reassembly/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-008-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Step-Lap Transformer Cores: Preserve the Joint Pattern During Assembly</video:title><video:description>Magnetic flux turns and transfers between laminations at a transformer core corner. See how a multi-step lap distributes that transfer across more layers, then examine cutting length, angle, burr condition and the lacing pattern during top-yoke removal and reassembly.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/kT5fNX94htU</video:player_loc><video:duration>56</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-008-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Step-Lap Transformer Cores: Preserve the Joint Pattern During Assembly</video:title><video:description>Magnetic flux turns and transfers between laminations at a transformer core corner. See how a multi-step lap distributes that transfer across more layers, then examine cutting length, angle, burr condition and the lacing pattern during top-yoke removal and reassembly.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/I_tMiDr1hgc</video:player_loc><video:duration>56</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/step-lap-joint-geometry-reassembly/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-008-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>ステップラップ鉄心：組立時に接合パターンを保つ</video:title><video:description>変圧器用鉄心の角部では磁束の向きが変わり、切板間を移ります。多段ステップラップがこの移行をより多くの層に分散する仕組みを確認し、上部継鉄の取外しと再組立時に、切断長さ、角度、ばりの状態、積み合わせパターンを確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/kT5fNX94htU</video:player_loc><video:duration>56</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-008-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>ステップラップ鉄心：組立時に接合パターンを保つ</video:title><video:description>変圧器用鉄心の角部では磁束の向きが変わり、切板間を移ります。多段ステップラップがこの移行をより多くの層に分散する仕組みを確認し、上部継鉄の取外しと再組立時に、切断長さ、角度、ばりの状態、積み合わせパターンを確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/I_tMiDr1hgc</video:player_loc><video:duration>56</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/step-lap-joint-geometry-reassembly/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-008-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>스텝 랩 철심: 조립 시 접합 패턴 유지</video:title><video:description>변압기 철심의 모서리에서는 자속 방향이 바뀌고 강판 사이로 이동합니다. 다단 스텝 랩이 이 이동을 여러 층에 분산시키는 원리를 살펴보고, 상부 요크를 분리하고 재조립할 때 절단 길이, 각도, 버 상태 및 겹침 배열을 확인합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/kT5fNX94htU</video:player_loc><video:duration>56</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-008-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>스텝 랩 철심: 조립 시 접합 패턴 유지</video:title><video:description>변압기 철심의 모서리에서는 자속 방향이 바뀌고 강판 사이로 이동합니다. 다단 스텝 랩이 이 이동을 여러 층에 분산시키는 원리를 살펴보고, 상부 요크를 분리하고 재조립할 때 절단 길이, 각도, 버 상태 및 겹침 배열을 확인합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/I_tMiDr1hgc</video:player_loc><video:duration>56</video:duration><video:publication_date>2026-10-30T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/crgo-cut-edge-moisture-protection/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-007-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Protecting CRGO Cut Edges from Moisture During Sea Transport</video:title><video:description>During sea transport, condensation can reach bare CRGO cut edges and lead to corrosion between sheets. Review the packing system: separation from wet timber, correctly sized desiccant, sealed protective wrapping, readable humidity indicators and edge photographs taken at packing and on arrival.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/gYSwlk4UzXY</video:player_loc><video:duration>57</video:duration><video:publication_date>2026-11-06T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-007-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Protecting CRGO Cut Edges from Moisture During Sea Transport</video:title><video:description>During sea transport, condensation can reach bare CRGO cut edges and lead to corrosion between sheets. Review the packing system: separation from wet timber, correctly sized desiccant, sealed protective wrapping, readable humidity indicators and edge photographs taken at packing and on arrival.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/tceNSB6osos</video:player_loc><video:duration>57</video:duration><video:publication_date>2026-11-06T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/crgo-cut-edge-moisture-protection/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-007-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>海上輸送時にCRGO切断端面を湿気から守る</video:title><video:description>海上輸送中の結露がCRGO切断端面の露出部に達すると、切板間の腐食につながることがあります。湿った木材との分離、適量の乾燥剤、密封した保護包装、読み取り可能な湿度インジケーター、梱包時と到着時の端面写真を含め、梱包全体を確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/gYSwlk4UzXY</video:player_loc><video:duration>57</video:duration><video:publication_date>2026-11-06T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-007-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>海上輸送時にCRGO切断端面を湿気から守る</video:title><video:description>海上輸送中の結露がCRGO切断端面の露出部に達すると、切板間の腐食につながることがあります。湿った木材との分離、適量の乾燥剤、密封した保護包装、読み取り可能な湿度インジケーター、梱包時と到着時の端面写真を含め、梱包全体を確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/tceNSB6osos</video:player_loc><video:duration>57</video:duration><video:publication_date>2026-11-06T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/crgo-cut-edge-moisture-protection/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-007-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>해상 운송 중 CRGO 절단면 방습</video:title><video:description>해상 운송 중 발생한 결로가 노출된 CRGO 절단면에 닿으면 강판 사이에 부식이 생길 수 있습니다. 젖은 목재와 분리했는지, 건조제 용량이 적절한지, 보호 포장이 밀봉됐는지, 습도 표시기를 읽을 수 있는지, 포장 시점과 도착 시점의 절단면 사진이 있는지 함께 확인합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/gYSwlk4UzXY</video:player_loc><video:duration>57</video:duration><video:publication_date>2026-11-06T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-007-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>해상 운송 중 CRGO 절단면 방습</video:title><video:description>해상 운송 중 발생한 결로가 노출된 CRGO 절단면에 닿으면 강판 사이에 부식이 생길 수 있습니다. 젖은 목재와 분리했는지, 건조제 용량이 적절한지, 보호 포장이 밀봉됐는지, 습도 표시기를 읽을 수 있는지, 포장 시점과 도착 시점의 절단면 사진이 있는지 함께 확인합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/tceNSB6osos</video:player_loc><video:duration>57</video:duration><video:publication_date>2026-11-06T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/large-transformer-core-cooling-ducts/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-006-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Inside a Large Transformer Core: Cooling Ducts and Heat Paths</video:title><video:description>Heat travels differently along a steel sheet and across a coated stack. This video compares equal-length circular core limbs: at the same loss per unit volume, doubling the diameter gives four times the heat generation and twice the side surface area. It connects this geometry to cooling ducts, open flow paths, spacer pressure and net steel section.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/xR5jX0obvRs</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-006-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Inside a Large Transformer Core: Cooling Ducts and Heat Paths</video:title><video:description>Heat travels differently along a steel sheet and across a coated stack. This video compares equal-length circular core limbs: at the same loss per unit volume, doubling the diameter gives four times the heat generation and twice the side surface area. It connects this geometry to cooling ducts, open flow paths, spacer pressure and net steel section.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/A-wpON8sqUA</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-11-05T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/large-transformer-core-cooling-ducts/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-006-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>大型変圧器用鉄心の内部：冷却ダクトと熱の伝わり方</video:title><video:description>熱の伝わり方は、鋼板の面内と絶縁皮膜を含む積層方向とで異なります。同じ長さの円形断面の鉄心脚部を比べると、単位体積あたりの損失が同じ条件で、直径を2倍にすると発熱量は4倍、側面積は2倍になります。この形状と、冷却ダクト、流路の確保、スペーサーに加わる圧力、正味鋼板断面積の関係を解説します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/xR5jX0obvRs</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-006-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>大型変圧器用鉄心の内部：冷却ダクトと熱の伝わり方</video:title><video:description>熱の伝わり方は、鋼板の面内と絶縁皮膜を含む積層方向とで異なります。同じ長さの円形断面の鉄心脚部を比べると、単位体積あたりの損失が同じ条件で、直径を2倍にすると発熱量は4倍、側面積は2倍になります。この形状と、冷却ダクト、流路の確保、スペーサーに加わる圧力、正味鋼板断面積の関係を解説します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/A-wpON8sqUA</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-11-05T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/large-transformer-core-cooling-ducts/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-006-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>대형 변압기 철심 내부: 냉각 덕트와 열 전달 경로</video:title><video:description>열은 강판 면을 따라 전달될 때와 절연 코팅을 포함한 적층 방향으로 전달될 때 양상이 다릅니다. 길이가 같은 원형 단면의 철심 다리를 비교하면, 단위 부피당 손실이 같을 때 지름을 2배로 늘릴 경우 발열량은 4배, 옆면 면적은 2배가 됩니다. 이러한 형상과 냉각 덕트, 유로 확보, 스페이서에 가해지는 압력 및 순 강판 단면적의 관계를 살펴봅니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/xR5jX0obvRs</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-006-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>대형 변압기 철심 내부: 냉각 덕트와 열 전달 경로</video:title><video:description>열은 강판 면을 따라 전달될 때와 절연 코팅을 포함한 적층 방향으로 전달될 때 양상이 다릅니다. 길이가 같은 원형 단면의 철심 다리를 비교하면, 단위 부피당 손실이 같을 때 지름을 2배로 늘릴 경우 발열량은 4배, 옆면 면적은 2배가 됩니다. 이러한 형상과 냉각 덕트, 유로 확보, 스페이서에 가해지는 압력 및 순 강판 단면적의 관계를 살펴봅니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/A-wpON8sqUA</video:player_loc><video:duration>55</video:duration><video:publication_date>2026-11-05T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/transformer-core-single-point-earthing/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-005-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Why Transformer Cores Use One Intended Earthing Point</video:title><video:description>The intended core earthing path controls electrical potential. This video follows how an unintended second contact can form a conducting loop through the core, frame and tank. When changing magnetic flux links the loop, circulating current can cause local heating. It also covers assembly checks, core-to-frame insulation and electrical testing.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/UZoeGtJIVXo</video:player_loc><video:duration>53</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-005-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Why Transformer Cores Use One Intended Earthing Point</video:title><video:description>The intended core earthing path controls electrical potential. This video follows how an unintended second contact can form a conducting loop through the core, frame and tank. When changing magnetic flux links the loop, circulating current can cause local heating. It also covers assembly checks, core-to-frame insulation and electrical testing.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/BuEKHsFC6V8</video:player_loc><video:duration>53</video:duration><video:publication_date>2026-11-04T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/transformer-core-single-point-earthing/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-005-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>変圧器用鉄心を設計上の一点で接地する理由</video:title><video:description>設計上の鉄心接地経路は、鉄心の電位を制御します。意図しない二つ目の接触で鉄心、枠、タンクを通る導電ループが形成され、変動磁束がループと鎖交すると、循環電流により局部発熱が生じることがあります。組立時の確認、鉄心と枠の間の絶縁、電気試験も取り上げます。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/UZoeGtJIVXo</video:player_loc><video:duration>53</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-005-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>変圧器用鉄心を設計上の一点で接地する理由</video:title><video:description>設計上の鉄心接地経路は、鉄心の電位を制御します。意図しない二つ目の接触で鉄心、枠、タンクを通る導電ループが形成され、変動磁束がループと鎖交すると、循環電流により局部発熱が生じることがあります。組立時の確認、鉄心と枠の間の絶縁、電気試験も取り上げます。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/BuEKHsFC6V8</video:player_loc><video:duration>53</video:duration><video:publication_date>2026-11-04T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/transformer-core-single-point-earthing/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-005-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>변압기 철심을 지정된 한 지점에서 접지하는 이유</video:title><video:description>설계된 철심 접지 경로는 철심의 전위를 제어합니다. 의도하지 않은 두 번째 접촉이 철심, 프레임 및 탱크를 잇는 도전 루프를 형성하고, 변화하는 자속이 루프와 쇄교하면 순환 전류가 국부 발열을 일으킬 수 있습니다. 조립 점검, 철심과 프레임 사이 절연 및 전기 시험도 다룹니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/UZoeGtJIVXo</video:player_loc><video:duration>53</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-005-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>변압기 철심을 지정된 한 지점에서 접지하는 이유</video:title><video:description>설계된 철심 접지 경로는 철심의 전위를 제어합니다. 의도하지 않은 두 번째 접촉이 철심, 프레임 및 탱크를 잇는 도전 루프를 형성하고, 변화하는 자속이 루프와 쇄교하면 순환 전류가 국부 발열을 일으킬 수 있습니다. 조립 점검, 철심과 프레임 사이 절연 및 전기 시험도 다룹니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/BuEKHsFC6V8</video:player_loc><video:duration>53</video:duration><video:publication_date>2026-11-04T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/core-limb-banding-through-bolt-design/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-004-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Core Limb Bands vs Through-Bolts: Compare the Complete Design</video:title><video:description>This video examines how through-holes affect the steel section, local flux paths and electrical insulation of a transformer core. It compares through-bolt arrangements with glass-fibre limb bands, including material selection, band tension and spacing within the complete core design.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/330OEEddrjE</video:player_loc><video:duration>47</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-004-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Core Limb Bands vs Through-Bolts: Compare the Complete Design</video:title><video:description>This video examines how through-holes affect the steel section, local flux paths and electrical insulation of a transformer core. It compares through-bolt arrangements with glass-fibre limb bands, including material selection, band tension and spacing within the complete core design.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/vLsI7JjW2Vg</video:player_loc><video:duration>47</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/core-limb-banding-through-bolt-design/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-004-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>鉄心脚部のバンドと貫通ボルト：締付構造全体で比較する</video:title><video:description>貫通穴が変圧器用鉄心の鋼板断面積、局所的な磁束経路、電気絶縁に与える影響を解説します。貫通ボルトと脚部を固定するガラス繊維バンドを、材料選定、バンドの張力・間隔、鉄心全体の設計を含めて比較します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/330OEEddrjE</video:player_loc><video:duration>47</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-004-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>鉄心脚部のバンドと貫通ボルト：締付構造全体で比較する</video:title><video:description>貫通穴が変圧器用鉄心の鋼板断面積、局所的な磁束経路、電気絶縁に与える影響を解説します。貫通ボルトと脚部を固定するガラス繊維バンドを、材料選定、バンドの張力・間隔、鉄心全体の設計を含めて比較します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/vLsI7JjW2Vg</video:player_loc><video:duration>47</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/core-limb-banding-through-bolt-design/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-004-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>철심 다리의 밴드와 관통 볼트: 전체 클램핑 설계 비교</video:title><video:description>관통 구멍이 변압기 철심의 강판 단면, 국부 자속 경로 및 전기 절연에 미치는 영향을 설명합니다. 소재 선정, 밴드 장력과 간격, 철심 전체 설계를 함께 고려해 관통 볼트 방식과 유리섬유 다리 밴드 방식을 비교합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/330OEEddrjE</video:player_loc><video:duration>47</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-004-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>철심 다리의 밴드와 관통 볼트: 전체 클램핑 설계 비교</video:title><video:description>관통 구멍이 변압기 철심의 강판 단면, 국부 자속 경로 및 전기 절연에 미치는 영향을 설명합니다. 소재 선정, 밴드 장력과 간격, 철심 전체 설계를 함께 고려해 관통 볼트 방식과 유리섬유 다리 밴드 방식을 비교합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/vLsI7JjW2Vg</video:player_loc><video:duration>47</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/transformer-core-clamping-control/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-003-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Transformer Core Clamping: Why More Pressure Is Not Always Better</video:title><video:description>Controlled clamping distributes pressure across the core laminations and supports stable assembly geometry. This video explains pressure plates, bolt torque, band tension and tightening sequence as parts of the specified transformer core assembly process.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/VlX44CSj9uw</video:player_loc><video:duration>50</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-003-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Transformer Core Clamping: Why More Pressure Is Not Always Better</video:title><video:description>Controlled clamping distributes pressure across the core laminations and supports stable assembly geometry. This video explains pressure plates, bolt torque, band tension and tightening sequence as parts of the specified transformer core assembly process.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/ZDsEC7Cd_f0</video:player_loc><video:duration>50</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/transformer-core-clamping-control/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-003-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>変圧器用鉄心の締付け：圧力を上げすぎてはいけない理由</video:title><video:description>適切な締付けにより、切板全体に圧力を分散し、組立形状を安定させます。押さえ板、ボルトの締付けトルク、バンドの張力、締付け順序を、指定の鉄心組立工程の一部として解説します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/VlX44CSj9uw</video:player_loc><video:duration>50</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-003-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>変圧器用鉄心の締付け：圧力を上げすぎてはいけない理由</video:title><video:description>適切な締付けにより、切板全体に圧力を分散し、組立形状を安定させます。押さえ板、ボルトの締付けトルク、バンドの張力、締付け順序を、指定の鉄心組立工程の一部として解説します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/ZDsEC7Cd_f0</video:player_loc><video:duration>50</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/transformer-core-clamping-control/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-003-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>변압기 철심 클램핑: 압력을 높이는 것이 항상 좋지 않은 이유</video:title><video:description>클램핑을 적절히 관리하면 강판 전체에 압력이 분산되어 조립 형상이 안정됩니다. 압착판, 볼트 체결 토크, 밴드 장력 및 체결 순서를 지정된 변압기 철심 조립 공정의 일부로 설명합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/VlX44CSj9uw</video:player_loc><video:duration>50</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-003-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>변압기 철심 클램핑: 압력을 높이는 것이 항상 좋지 않은 이유</video:title><video:description>클램핑을 적절히 관리하면 강판 전체에 압력이 분산되어 조립 형상이 안정됩니다. 압착판, 볼트 체결 토크, 밴드 장력 및 체결 순서를 지정된 변압기 철심 조립 공정의 일부로 설명합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/ZDsEC7Cd_f0</video:player_loc><video:duration>50</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/transformer-core-transport-inspection/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-002-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Transformer Core Arrival Inspection: Look Beyond the Crate</video:title><video:description>Transport motion can load the frame, clamps and joints of a transformer core. This video covers the pre-shipment geometry baseline, route-specific bracing, impact records where specified, and comparison of joint photographs and dimensions on arrival.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/IzWV5-ZbP-A</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-002-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Transformer Core Arrival Inspection: Look Beyond the Crate</video:title><video:description>Transport motion can load the frame, clamps and joints of a transformer core. This video covers the pre-shipment geometry baseline, route-specific bracing, impact records where specified, and comparison of joint photographs and dimensions on arrival.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/iikaZh_Sk7c</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/transformer-core-transport-inspection/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-002-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>変圧器用鉄心の到着時検査：木箱の外観だけでは判断できない</video:title><video:description>輸送中の動きにより、変圧器用鉄心の枠、締付部材、接合部に荷重が加わることがあります。出荷前の基準形状、輸送経路に応じた補強、指定がある場合の衝撃記録、到着時に接合部の写真と寸法を比較する方法を解説します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/IzWV5-ZbP-A</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-002-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>変圧器用鉄心の到着時検査：木箱の外観だけでは判断できない</video:title><video:description>輸送中の動きにより、変圧器用鉄心の枠、締付部材、接合部に荷重が加わることがあります。出荷前の基準形状、輸送経路に応じた補強、指定がある場合の衝撃記録、到着時に接合部の写真と寸法を比較する方法を解説します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/iikaZh_Sk7c</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/transformer-core-transport-inspection/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-002-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>변압기 철심 도착 검사: 포장 상자 외관만으로 판단할 수 없는 이유</video:title><video:description>운송 중 움직임은 변압기 철심의 프레임, 클램핑 부품 및 접합부에 하중을 줄 수 있습니다. 출하 전 기준 형상, 운송 경로에 맞춘 보강, 지정 시 충격 기록, 도착 시 접합부 사진과 치수 비교를 다룹니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/IzWV5-ZbP-A</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-002-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>변압기 철심 도착 검사: 포장 상자 외관만으로 판단할 수 없는 이유</video:title><video:description>운송 중 움직임은 변압기 철심의 프레임, 클램핑 부품 및 접합부에 하중을 줄 수 있습니다. 출하 전 기준 형상, 운송 경로에 맞춘 보강, 지정 시 충격 기록, 도착 시 접합부 사진과 치수 비교를 다룹니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/iikaZh_Sk7c</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/engineering-videos/mechanical-stress-transformer-core-loss/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-001-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>Why Transformer Core Loss Can Rise After Assembly</video:title><video:description>Mechanical stress can change the performance of a grain-oriented electrical steel core during stacking, tilting and clamping. This video explains load paths, full-footprint support, clamp-frame flatness and the tightening sequence, with finished-core tests considered alongside the material certificate.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/Gyw7l-hTjHs</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-001-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>Why Transformer Core Loss Can Rise After Assembly</video:title><video:description>Mechanical stress can change the performance of a grain-oriented electrical steel core during stacking, tilting and clamping. This video explains load paths, full-footprint support, clamp-frame flatness and the tightening sequence, with finished-core tests considered alongside the material certificate.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/6Op3Xc-Iti4</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ja/engineering-videos/mechanical-stress-transformer-core-loss/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-001-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>変圧器用鉄心の組立後に鉄損が増えるのはなぜか</video:title><video:description>積層、起こし作業、締付けの際に加わる機械的応力は、方向性電磁鋼板を用いた鉄心の特性を変化させることがあります。荷重経路、鉄心底面全体の支持、締付け枠の平面度、締付け順序を解説し、完成鉄心の試験結果を材料証明書と併せて確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/Gyw7l-hTjHs</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-001-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>変圧器用鉄心の組立後に鉄損が増えるのはなぜか</video:title><video:description>積層、起こし作業、締付けの際に加わる機械的応力は、方向性電磁鋼板を用いた鉄心の特性を変化させることがあります。荷重経路、鉄心底面全体の支持、締付け枠の平面度、締付け順序を解説し、完成鉄心の試験結果を材料証明書と併せて確認します。</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/6Op3Xc-Iti4</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url><url><loc>https://chenfanelectric.com/ko/engineering-videos/mechanical-stress-transformer-core-loss/</loc><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-001-landscape-cover-1024x576.jpg</video:thumbnail_loc><video:title>변압기 철심 조립 후 철손이 증가하는 이유</video:title><video:description>적층, 기울임 작업, 클램핑 중 발생하는 기계적 응력은 방향성 전기강판 철심의 성능에 영향을 줄 수 있습니다. 하중 전달 경로, 바닥 면적 전체 지지, 클램핑 프레임의 평탄도와 체결 순서를 설명하고, 소재 시험성적서와 함께 완성 철심의 시험 결과를 검토합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/Gyw7l-hTjHs</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video><video:video><video:thumbnail_loc>https://chenfanelectric.com/wp-content/uploads/2026/10/cf-engineering-001-shorts-cover-576x1024.jpg</video:thumbnail_loc><video:title>변압기 철심 조립 후 철손이 증가하는 이유</video:title><video:description>적층, 기울임 작업, 클램핑 중 발생하는 기계적 응력은 방향성 전기강판 철심의 성능에 영향을 줄 수 있습니다. 하중 전달 경로, 바닥 면적 전체 지지, 클램핑 프레임의 평탄도와 체결 순서를 설명하고, 소재 시험성적서와 함께 완성 철심의 시험 결과를 검토합니다.</video:description><video:player_loc>https://www.youtube-nocookie.com/embed/6Op3Xc-Iti4</video:player_loc><video:duration>54</video:duration><video:publication_date>2026-10-29T00:00:00+00:00</video:publication_date></video:video></url></urlset>