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        Transformer Equipments

        ROCKWILL Transformer Manufactures: power transformer, distribution transformer, compact substation, step voltage regulator, self protected transformer (CSP) , dry type transformers, cast resin transfo
        Tray Type De-energized Tap Changer for Distribution Transformer
        Tray Type De-energized Tap Changer for Distribution Transformer

        The tray type de-energized tap changer is manufactured by Rockwill Electric in China. It applies to the three-phase oil-immersed electrical power & distribution transformer with the frequency of 50Hz, 60Hz, rated voltage of 10kV,35kV and rated current of 63A,125A,250A.

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        Vacuum On Load Tap Changer OLTC
        Vacuum On Load Tap Changer OLTC

        This vacuum type on load tap changer (OLTC) is suitable for oil-immersed power transformers with AC 50Hz/60Hz, primary side rated voltage of 10kV, rated current of 50A and below.

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        On Load Capacity Regulating Tap Changer
        On Load Capacity Regulating Tap Changer

        The on load capacity regulating tap changer is used for three phase oil-immersed capacity regulation power transformer with rated capacity of 315 kVA, 400 kVA and 630 kVA at 50Hz / 60Hz, and the voltage class is 12kV. This type on load tap changer has high stability and reliability for your free maintenance.

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        SV Type On Load Tap Changer
        SV Type On Load Tap Changer

        Rockwill SV type on load tap changer, which has advanced structure, long service life and high reliability. It is normally used in high voltage oil-immersed three-phase transformer as three phase step voltage regulator with frequency 50Hz/60Hz, voltage from 110kV to 126kV, and maximum rated passing current from 200A to 350A.

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        F Series On Load Tap Changer
        F Series On Load Tap Changer

        China Rockwill F series on load tap changer (OLTC), which has advanced structure, long service life and high reliability. It is normally used in oil-immersed three-phase transformer as three phase step voltage regulator with frequency 50Hz/60Hz, voltage up to 40.5KV and rated current up to 400A.

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        20kV SCB10 Cast Resin Distribution Transformer Dry Type
        20kV SCB10 Cast Resin Distribution Transformer Dry Type

        Rockwill brand Dry type transformer - Three phase dry type cast resin distribution transformers manufactured by Rockwill. Full complied with IEC60076, GB1094-1996. Having low price and high quality.

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        Mobile Transformer Substation
        Mobile Transformer Substation

        Rockwill Mobile Transformer Substation Manufacturer. The mobile transformer substation includes outdoor switching stations (up to 132kV), single transformer stations (up to 132kV, 20 MVA), multi-transformer stations or generating electric centers. In addition, a special arrangement for pressurized PEMCs can be provided for special applications in hazardous areas.

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        11/0.4kV 800kVA Mining substation
        11/0.4kV 800kVA Mining substation

        Mining substation / Package mining transformer substation Rockwill provide with pacakge mining substation for industry miner, It is high protection class heavy duty substation.

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        Container Type Unitized Substation
        Container Type Unitized Substation

        Container type unitized compact substation from Rockwill Electric. It complies with IEC standard, and it is easy for transpotation and installation, high quality and strong enough for loading and lifting.

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        China Neutral earthing transformer - Zig zag grounding transformer manufacturer
        China Neutral earthing transformer - Zig zag grounding transformer manufacturer

        Neutral Earthing Transformer(Zig-Zag grounding transformer) is a auxiliary transformer for transmission & distribution line protection, Rockwill is a professional manufacturer for earthing transformer

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        Prefabricated Compact Substation
        Prefabricated Compact Substation

        Prefabricated compact substation, also known as compact substation or package substation. It is consists of high-voltage switchgear, distribution transformer and low-voltage power distribution device

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        35kV OLTC Power Transformer
        35kV OLTC Power Transformer

        Rockwill 35kV OLTC power transformer which is equiped with OLTC for regulatoring the voltage in an accurate range. It is a main part for used in power transmission and distribution system like substation. It completely complies with IEC 60076 standard for meeting different countries' needs.

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        35kV Oil Immersed Power Transformer
        35kV Oil Immersed Power Transformer

        Rockwill 35kV oil immersed power transformer is used for AC power transmission system which has advantages of high quality, reasonable price, easy for installation, operation friendly ans so on.

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        11kV Outdoor CT PT Combined Metering Unit
        11kV Outdoor CT PT Combined Metering Unit

        Rockwill outdoor oil immersed type CT PT combined metering unit. Rated voltage: 3.3kV, 6kV, 10kV, 11kV, 12.5kV, 13.8kV. Standard: IEC, ANSI, GB.

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        2500kVA Power Distribution Transformer
        2500kVA Power Distribution Transformer

        China 2500kVA (2.5MVA) oil immersed power distribution transformer with high quality and good price.

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