LZW-72.5 Outdoor Current Transformer ngadto sa Cebuano: LZW-72.5 Outdoor Current Transformer

Product Overview

Ang LZW-72.5 current transformer nga gipangandam pinaagi sa epoxy resin casting insulation ug outdoor installation, gigamit kaayo para sa pag-sukod sa current, electric energy, ug protective relaying sa power system nga may rated frequency 50Hz o 60 Hz ug rated voltage 66kV o 69kV.

Key Features

• High-Voltage Grade Outdoor-Specific Design：Ang LZW-72.5 adunay 72.5kV rated voltage design nga ang insulation levels mao ang 125kV (lightning impulse) / 70kV (power frequency withstand voltage). Ito ay maestraktamente sumusunod sa GB/T 4703.2 ug IEC 60044-2 standards, na-optimize para sa high-voltage outdoor scenarios tulad ng 110kV at ibaba outdoor substations ug overhead lines. Ini nagdudulot og safe ug stable operation sa long-term high-voltage environments, effective sa pagbawas sa risk sa insulation breakdown.

•  Extreme Climate Protection Structure：Ang produkto nagsama og triple protection system: ito ay gumagamit ng silicone rubber composite insulation materials ug aluminum alloy flanges, naabot ang 10,000 oras ng UV aging resistance; nakarating sa IP68+ protection, nagbibigay ng long-term operation sa 2 metro underwater, kasama ang espesyal na disenyo para matiis ang 30mm/h snow accumulation ug ice loads hanggang 20mm thickness; nakapasa sa 3,000 oras ng salt spray testing, na may creepage distance na 31mm/kV, buong sumasapat sa mga requirement ng harsh outdoor environments tulad ng plateaus, extreme cold, ug coastal areas.

• Dual-Winding High-Precision Measurement System：Ang LZW-72.5 nagintegro sa 0.2S-class metering winding ug 5P30-class protection winding. Ang metering winding nagmaintain sa ratio error ≤±0.2% sa 1%~120% rated current, nasasatisfy ang high-precision energy metering needs; ang protection winding adunay composite error ≤5% sa 30 times rated current uban 8ms fast response, effective sa pag-ensure sa speed sa relay protection devices. Ito adunay 3 sets of ratio taps (e.g., 600/5A, 800/5A, 1000/5A), nga mahimong flexible adjust pinaagi sa outdoor-specific sealed switch walay disassembly aron mapasabot sa different load current scenarios.

• Intelligent Condition Monitoring and Communication Technology:Ang produktong gibekan sa multi-parameter sensors para sa temperature (-40℃~+120℃), humidity, ug insulation dielectric loss, nagkuha og real-time operational data. Ito suporta sa IEC 61850-9-2 digital protocol ug DL/T 645 standard, sama sa pagretain sa 4~20mA analog output interface, nag-enable sa seamless integration sa smart substation systems o compatibility sa old monitoring equipment. In-depth analysis sa historical data pinaagi sa cloud platforms predict sa insulation aging trends sa advance, naghatag og data support sa operation ug maintenance decisions ug significant sa pagbawas sa outdoor inspection frequency ug costs.

Main technical parameter

• Rated voltage : 66kV o 69kV

• Highest voltage for equipment : 72.5 kV

• Rated insulation level : 72.5/140/325kV

• Rated secondary current :5A o 1A

• Standards: IEC60044-1.2003 Part 1: Instrument transformers-Part1: Current transformers o ANSI IEEE STD C57.13-2008

Other technical parameter pls see as follow:

Double ratios

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

Outline drawing