If you want to check the activated carbon fiber for the hanging cover
The vibration reduction of the grounding device sheet solves the problem of modifying the fixed hard connection between the copper sheet of the grounding device and the dry-type transformer. The original oscillation of the dry-type transformer will be transmitted to the metal in the concrete by the baffle and cause low-frequency noise. Therefore， first take out the low-voltage waterproof sleeve and the on load transformer power switch， then lower the bell cover anchor bolt of the large cover， slowly hang the galvanized steel wire rope with sufficient lifting net weight on the commonly used earrings， wear round steel from top to bottom in the surrounding screw holes， and count the spacing and specifications for easy reinstallation. At the same time， the cable wind shall be added on all sides to ensure that the core international body will not be damaged during the whole lifting process. After lifting for mm， stop the lifting， stabilize the bell cover， and check the bearing capacity of the lifting core， center of gravity and Jack. After everything is normal， lift it again until the bell cover exceeds the relative height of the body， the flange plate， barrel skin and the middle of the waterproof sleeve at the upper end of the automobile oil tank. The internal iron core and winding clamp are hot due to partial magnetic leakage resulting in insulation damage.
Caused by sand holes and cracks. For crack leakage， resulting in four wiring groups: & ldquo; y， Y & rdquo;， & ldquo; D， Y & rdquo;， & ldquo; y， D & rdquo; and & ldquo; D， D & rdquo;. In China， only & ldquo; y， Y & rdquo; and & ldquo; y， D & rdquo; are selected. Because there are also two types of Y-connection with neutral line and without neutral line. If there is no neutral line， it will not be upgraded. All marks show that with neutral line， it will not be upgraded The letter N after the English letter Y indicates that the neutral line has transformer grounding wire. Yn wiring group， when UAB and UAB overlap， the minute hand points to . & ldquo; & rdquo; in the new wiring group， it is indicated by & ldquo; & rdquo.
The insulation of the through core anchor bolt clamping the iron core is damaged， the transformer was disconnected by vibration (but there was no grounding device).
managementPower transformer factory
Dry type transformer company
Due to poor sealing， generally， the sealing of box edge and machine cover is sealed with acid-base resistant rubber rod or rubber plate. If the joint is not solved well， it will lead to common faults of oil leakage.
The oil in the machinery and equipment of the oil storage tank shall generally stand for more than h before sampling; it is not necessary to stand when sampling on the running power transformer.
middleman(II) the height width ratio of dry-type transformer pier installed on the ground is generally .m， and a guardrail of no less than m shall be installed around it， and a warning sign shall be hung at a prominent position.
When the operating oil is mixed with different types of new oil or used for oil， in addition to the accurate measurement of the cold filter point of the mixed oil， it is also necessary to carry out high and low temperature test and sludge test and observe the sludge accumulation. The accumulation cannot be accessed. The results of the operation of the mixing template are not that the original oil is very poor， so it can be managed and used in a mixed manner.
(I) the distance between the external contour of kV and below dry-type transformer and the surrounding guardrail or courtyard wall shall take into account the convenience of transportation and repair of dry-type transformer，KiektoConstruction power transformer， and the distance shall not be less than m; At the angle with actual operation， a spacing of more than m shall be reserved; If metal fence is selected， the metal fence shall be grounded and a warning sign shall be hung at a prominent position.
KiektoWhen leaving the factory， the production and processing are not smooth and the sealing is poor. The common fault of oil leakage will be caused after the oil transformer is sealed for a period of time.
Performance and main parameters of common metal composites， various welding processes and machinery and equipment， preparation treatment of thick steel plate，KiektoHow much is 630 box transformer， blanking process， production and manufacturing process and quality standards of automobile oil tank， riser， coupling and oil storage tank cabinet， welding leakage test and NDT technology， copper， Production process and quality standard of aluminum shield; Body suit iron insertion process， wire installation process， body dryness solution and dry transformer oil solution process， vacuum pump oil immersion， general installation process， leakage test and leakage detection process and quality standards. Performance parameters of key work clothes， machinery and equipment of each process flow; The natural working environment is basically regulated.
Oil leakage of porcelain pot and laminated glass oil level gauge