I. Tsohon Masana'antu na Inganci na Kirkiro
Ingancin kirkiro na AIS voltage transformers yana da muhimmanci wajen inganta hanyoyin yi a lokacin guda. Don 66 kV outdoor AIS voltage transformers (pillar-type structure):
Zafiya na Pillar: Yana amfani da casting na epoxy resin + metal frame don zafiya masana'antu, tashin jiki/tufafi. An buƙata cikakken inganci don 66 kV (vs 35 kV & kadan). Insulation na dry-type (porcelain/epoxy shell) yana buƙata zafiya masana'antu mai tsari/babu da ɗan tsaro ga wasu gida.
Rarrabe Kuli: Ana iya amfani da convection ta harsuna; ya fara rayuwar wannan mafi girma ≤ 80 K. Don electronics, za a iya fi sanya rarrabe kuli da forced air cooling/thermal materials (e.g., heat pipe modules control bus temp rise < 65 K at 40 °C, 14% kadan daga takardun al'adu).
Anti-Vibration: Ana iya tabbatar da GB/T 20840.11 - 2025 (transport: 10 g vibration elements; post-transport checks). Amfani da shock-absorbing brackets/damping materials (e.g., honeycomb cardboard + polyurethane foam; internal displacement < 1 mm under 3 g transport at 5000 m altitude).
II. Medium na Insulation & Ingancin Kirkiro
Muhimmiyar zuwa performance na insulation, abin da tsaftaci, da kuma tushen lamarin:
Tsayawa: Single-channel multi-seal groove (22% - 25% compression rate). EPDM “O”-rings, stainless steel welded tanks, double-layer O-rings yana daidaita tsayawa (annual leakage ≤ 0.5%). Ya shiga weld checks (X-ray, dye) da hydrostatic tests.
Ingancin Kirkiro: Don electromagnetic types, amfani da side-yoke cores ko 3-single-phase combinations. Don capacitive types, optimize capacitor dividers/electromagnetic units. Zama electrical clearance/creepage (e.g., PD3: 12 kV system creepage ≥ 240 mm).
III. Ingancin Tsawo na Lamarin
Yana daidaita hanyoyin yi a gida:
Temperature: Operation a -40 °C ~ +55 °C (GB/T 4798.4). Amfani da materials mai tsari (silicone rubber/epoxy resin; 155 °C epoxy passes IEC 60216-1). Optimize rarrabe kuli (e.g., silver-plated copper bars pass 1000-hour salt spray, contact resistance change ≤ 15%).
Anti-Pollution: Design per PD3 (high CTI epoxy, RTV coatings). E.g., polyurea coatings (≥ 1 mm) improve UV resistance 3x (QUV test: ΔE < 3 after 5000 h).
Anti-Aging: Verify via IEC tests (CTI, thermal aging, salt spray). Amfani da tinned copper bars (≥ 15 μm; pass 56-day damp-heat tests). Include protection (anti-aging/rust-resistant explosion-proof membranes; avoid water/frost heave).
IV. Ingancin Hanyoyin Yi
Yana daidaita hanyoyin yi/system:
Fuses: Primary: RW10-35/0.5 (0.5 A, 1000 MVA breaking). Secondary: 3-5 A (protection), 1-2 A (metering); fusing time < protection action time.
Grounding: Follow “single-point grounding” (primary neutral, secondary at control room, tertiary open-delta). Comply with resistance standards (varies by type/scenario).
Explosion-Proof: Membrane bursting pressure = 2× rated (e.g., 66 kV: 0.8 MPa for 0.4 MPa rated). Amfani da anti-aging/rust-resistant materials (polycarbonate/stainless steel); avoid water/frost heave.
VIII. Dukkake & Takallumai
Ingancin AIS voltage transformer yana buƙata bin samun ƙarin bayanai game da kirkiro, insulation, lamarin, hanyoyin yi, da kuma intelligence.
Design Tips: Pillar structure (epoxy + metal frame); rarrabe kuli (optimize convection, add cooling if needed); anti-vibration (shock-absorbing materials, test validation).
Safety: Fuses (matching specs), single-point grounding, explosion-proof membranes (2× rated pressure, anti-aging materials).
Ingancin na gaba zai buƙata tushen lamarin, intelligence, da kuma digitization. Follow standards/specs to ensure stable operation.
