SF6 Metal-Clad Ring Main Unit

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HXGN26-12(F) Combined Metal-clad AC Ring Main Unit Switchgear ( hereafter referred to as Ring Main Unit ) are designed and manufactured by ourselves by importing foreign advanced technology and accord with the requirement of power supply in our country. Product Feature: A. Main switch is FN26-12 SF6 load; B. Three phases are end to end arrangement; C. Two mechanisms: Manualmanual and motor drive; D. Enclosure: Complete aluminum zinc coated steel plate; E. Reliable 5 protection interlock system; F. Easy control circuit connection between cabinets. Technical data: Name Unit Data Rated voltage KV 12 Rated frequency Hz 50 Rated current of main busbar A 630 Rated short-time withstand current of main circuit and earthing circuit. KA/s 25/2 Rated peak withstand current of main circuit and earthing circuit. KA 63 Rated short-circuit making current of main circuit and earthing circuit. KA 63 Load switch full capacity breaking times Times 100 Fuse breaking current KA 31.5 40 Mechanical endurance Times 10000 1min power frequency withstand voltage(r. M. S) phase to phase, phase to earth/isolating distance KA 42/48 Lightning impulse withstand voltage (peak)phase to phase, phase to earth/ isolating distance KV 75/85 Secondary circuit 1min power frequency withstand voltage KV 2

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Ningbo Tianan (Group) Co.,Ltd

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