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    Protection

    All transformer operators face the challenge of protecting the equipment from unpredictable threats. Installing protective devices for early warning and, if necessary, emergency shut-down in case of problems in the transformer not only protects the equipment, but can also extend its operating life.

    Distribution Transformer

    Short circuits are a frequent reason for failures and problems in transformers. They can cause massive overpressure development in the tank of the transformer. Pressure relief devices protect distribution transformers in case of sudden pressure increases in the oil system.

    CEDASPE® R1"/R2" Series

    - Spring-inside-the-tank pressure relief valves
    - 1" and 2"
    - Operating pressure from 15 kPa up to 70 kPa (2 psi up to 10 psi)
    - No contacts

    CEDASPE® VP (VS)

    - Vacuum pressure gauge for hermetic transformer
    - Stainless steel (AISI 304), suitable for outdoor installation
    - With glass window and bayonet closing ring
    - Available with up to 3 contacts

    Protective relays are used to prevent serious electrical faults in the transformer. They detect the presence of fault gases or leaks in the oil system. After detecting a fault state, they are activated and thus protect against serious equipment damage.

    CEDASPE® OC-MA/ML 

    - Gas relay for hermetic transformer without nitrogen cushion to monitor potential gas generation
    - Waterproof (IP65 protection degree)
    - Large inspection window

     

    Power Transformer

    Short circuits are a frequent reason for failures and problems in transformers. They can cause massive overpressure development in the tank and in the tap changer of the transformer. Pressure relief devices protect electric coils, power transformers and tap changers in case of sudden pressure increases in the oil system.

    MESSKO® MPREC®

    - Weatherproof aluminum signal pin with two notches, self-locking 
    - Defined valve stroke, forced activation of the main switching contacts
    - Opens within 2 ms; closes within 70 ms
    - Offshore version available
    - Suitable for wind power plants

    CEDASPE® VP-150/150QT Series

    - Works automatically based on valve setting
    - Available with up to 2 contacts
    - Compression spring(s) outside 
    - Interchangable with other brands (QT-Version)
    - Oil shield option available

    Protective relays are used to prevent serious electrical faults in the transformer. They detect the presence of fault gases or leaks in the oil system. After detecting a fault state, they are activated and thus protect against serious equipment damage.

    CEDASPE® CPR3

    - Smart element in case of rubber bag failure
    - Waterproof (IP65 protection degree)
    - Large inspection window
    - Designed according to EN50216

    Our Buchholz relays are characterized by a rugged design, formed from the experiences of more than 100 years of measuring, control and safety technology. The Buchholz relay takes on the function of a central protective device for fluid-filled transformers and reactors with an expansion tank/conservator. Installed in the pipeline between the tank and expansion tank, it responds to errors that occur inside the transformer being protected. Damage can be detected by the Buchholz relay early, thus preventing destruction.

    MESSKO® MSAFE

    - Long service life thanks to high-quality material (mechanical components with a composition of up to 95% stainless steel) 
    - High operational reliability thanks to helium leak test for oil and gas tightness 
    - Avoids false tripping by using magnetic circuit breaker 
    - Maintenance and service-friendly - you can replace switches without having to access the oil circuit 
    - 100% retrofittable 
    - Solid-body floats 

    CEDASPE® EB Series

    - Waterproof (IP65 protection degree)
    - Large inspection window
    - Replacing of similar existing / old models (any brand)
    - Optional special versions acc. to Chinese, British or other specifications

     

    CEDASPE® ET Series

    - Inlet diameter up to 100 mm
    - Waterproof (IP65 protection degree)
    - Large inspection window
    - Suitable for replacing similar existing and old Italian models (Italian standard)

    CEDASPE® GCD/RG3 Series

    - Gas collecting device for Buchholz relays
    - Waterproof (IP65 protection degree)
    - Large inspection window
    - Suitable for gas analyzer devices
    - Suitable for gas injection testing (only RG3.3 model)