|Brown or Grey
|50, 000PCS Per Year
Product Description High Voltage Ceramic Porcelain Capacitor Bushing
2.Stable mechanical strength
3.No fracture, no oil leakage
1. Brief introductionCapacitor bushings are roll-formed with high-strength porcelain and metal accessories, which have good mechanical and electrical properties. There are currently 1 skirt to 16 skirts capacitor bushings with a maximum creepage distance of 1200mm.
|Dry arcing distance(mm)
|14 skirts enlarged
2. Product designThe upper ﬂange of the bushing head is designed with 3 U-shaped grooves. Glue is dispensed at the grooves. The upper flange sleeve is filled with silicon rubber seals and tightened by rolling, which can effectively prevent fasteners. When tightening, it is subjected to torque to make the rolled flange cap loose due to force, effectively avoiding the occurrence of oil leakage on the head.The bottom of the casing is designed with grooves and inclined surfaces. Glue is applied to the grooves. The lower ﬂange is rolled to make it; tightly integrated with the bottom inclined surface of the porcelain. The ﬂange is tightened and the bottom sealing ring is compressed at the same time. The sealing ring and glue play a double sealing role. This structure can eﬀectively prevent the capacitor from being subjected to torque during wiring to loosen the ﬂange, eﬀectively avoiding the generation of oil leakage at the bottom, and ensuring the overall mechanical strength, sealing and insulation strength of the product.3. Manufacturing standardThe manufacturing process of capacitor bushing mainly adopts the International Electrotechnical Commission (IEC60137-2008) Standards and JB/T 11052-2010 "Technical Conditions of Press-ﬁt Insulating Sleeves for Capacitors" and other technical speciﬁcations and standards. 4. Inspection standards 4.1. Appearance inspection: the color, surface condition, glaze defect, etc. of the porcelain are in accordance with IEC60137Ed.6.0It is required to inspect one by one, and reject unqualiﬁed products.4.2. Dimensional inspection: strictly in accordance with the technical conditions and drawings signed with the customer.4.3. Sealing performance: the ﬁnished product is tested by helium mass spectrometer leak detector one by one, and the leak rate is less than 10-9Pa.m³ /s.44. Bending and torsion testing: routine bending strength testing is 50N, The routine torsion strength test is 4Nm.