JZW-72.5 Outdoor Voltage Transformer Panglabas na Transformer ng Voltaje

Product Overview

Ang JZW-72.5 voltage transformer, na may epoxy resin casting at outdoor installation, ay malawakang ginagamit para sa pagsukat ng kuryente, elektrikong enerhiya, at protective relaying sa power system na may frequency ng 50Hz o 60 Hz at rated voltage na 66kV o 69kV.

Ang produkto ay maaaring gamitin sa maraming pagkakataon tulad ng mga lugar ng altiplano, tropikal na lugar, malamig, baybayin, at maruruming lugar, atbp.

Key Features

• High Voltage Rating Adaptability：May rated voltage na 72.5kV, ito ay espesyal na disenyo para sa medium-to-high voltage outdoor substations, nagbibigay ng precise system voltage measurement upang matugunan ang pangangailangan sa metering, protection, at monitoring ng grids hanggang 72.5kV.

• Fully Sealed Weather-resistant Structure：May silicone rubber composite insulators at stainless steel housing, ito ay nagpapahiwatig ng IP67 protection rating, nagbibigay ng excellent moisture, dust, at salt fog resistance. Ito ay nakakayanan ang malakas na UV radiation at extreme temperatures mula -40℃ hanggang +70℃, adaptable sa harsh outdoor environments tulad ng mga deserts at coastal areas.

• Anti-fouling Flashover & Explosion-proof Design：May external insulation creepage distance ≥35mm/kV, anti-fouling flashover skirts, at hydrophobic coating, ito ay angkop sa Class Ⅳ pollution areas. Certified sa IEC 60076-11 explosion-proof standards, ito ay may integrated pressure relief device upang tiyakin na walang panganib ng explosion sa panahon ng faults.

• High-precision Voltage Transformation：Gumagamit ng low-loss silicon steel sheets at foil winding technology, ito ay naka-maintain ng voltage ratio error ≤0.2% at phase difference ≤10', tugon sa 0.2-class metering accuracy requirements upang magbigay ng precise voltage data para sa power grids.

• Low Power Consumption & Long Lifespan：May no-load loss ≤60VA at load loss ≤150VA, ito ay nakakatipid ng 15% energy kumpara sa traditional transformers. Ang epoxy resin casting insulation system ay nagbibigay ng 40-year service life, nagbabawas ng replacement frequency at O&M costs.

Main technical parameter

• Highest voltage for equipment: 72.5kV

• Rated primary voltage: 66/√3kV or 69/√3kV etc

• Limiting output ：2000VA

• Rated power-frequency withstand voltage: 140kV

• Rated lightning impulse withstand voltage: 325kV or 350kV

• Rated insulation level: 72.5/140/325kV or 72.5/140/350 kV

• Technical standard accords with IEC 60044-2:2003 Part2 Instrument transformers-Part2: inductive voltage transformers or IEEE STD C57.13-2008

Remarks: Upon request we are glad to offer transformers according to other standards or with non-standard technical specs.