2022-12-12 15:22:38
Professional pipeline engineering installation, electrical engineering installation, etc., with many years of engineering installation experience, providing comprehensive solutions;
(1)Electromechanical equipmentWhen installing isolating switches, insufficient contact pressure and contact surfaces at the dynamic (static) contacts or improper construction operations may cause electrical oxidation of the contact surfaces, increase contact resistance, burn out the contacts, and cause fires and other accidents.
(2) During the installation and maintenance of current transformers, negligence can cause the primary winding to break, which may generate high voltage and endanger personal and equipment safety.
(3) Due to incorrect arc contact type or installation of the circuit breaker, the insertion and wind, opening and closing speed, contact pressure, synchronization, etc., cannot meet design requirements. Due to overheating, the arc extinguishing time is extended, causing the insulation medium to decompose, voltage surges, and triggering the circuit breaker to explode.
(4) If the assembly of the adjustment device mechanism contains assembly errors of the load adjustment device or debris on the assembly cannot ensure normal operation, it may also lead to varying degrees of accidents.
(5) Accidents involving grounding accidents, rejection, short circuits, and circuit breaker tripping inside the main transformer or at the outlet side where the short-circuit current expands and the short-circuit current causes voltage surges inside the main transformer, oil vaporization and decomposition rapidly become explosive materials, and may lead to serious explosion accidents.
(6) When installing the main transformer core and high-voltage pipes, if debris accidentally falls into the main transformer like keys, screws and other objects, or if the casing drainage and body are not clean, or if the sealing device is installed incorrectly or due to damage or not strictness, this will reduce the insulation strength of the main transformer, leading to localized insulation damage or breakdown, and causing accidents.
