Oil Impregnated capacitor type bushing

Specifications Oil Impregnated Capacitor Type Bushing

for 252kV to 1700kV, advanced wholly automatic imported rewinding machine

  Product Description   Oil impregnated capacitor type bushing A: Computer is used to carry out optimal design for bushings, and the internationally advanced INFOLYTICA computing software is adopted to carry out the calculation analysis of electricity distribution inside and outside the bushing and choose appropriate technical parameters to ensure small partial discharge, high electrical insulation level, and long term function reliability.   B: As for 252kV to 1700kV, advanced wholly automatic imported rewinding machine is used for insulation rewinding process, in which drying process is also finished at the same time. As for 72.5kV and 126kV, internationally leading coal oil-vacuum phase drying system is adopted to the drying of capacitance core to ensure excellent drying performance and low dielectric loss factor.   Oil-impregnated Paper Capacitor Type Bushing Product Specification

Highest voltage for equipment	Um	kv	24	40.5	72.5	126	252	363	420	550	800	1100
Maximum line voltage		kv	14	23	42	73	145	210	242	318	462	635
Partial discharge		Pc	≤10	≤10	≤10	≤10	≤10	≤10	≤10	≤10	≤10	≤10
Power frequency withstand voltage test		kv	55	95	155	255	505	625	695	750	970	1200
Lighting impulse voltage (full wave)		kv	125	200	325	550	1050	1175	1425	1675	2100	2400
Lighting impulse voltage (chopped wave)		kv	-	-	-	-	850	950	1050	1175	1550	1950
Switching impulse voltage		kv	138	220	358	605	1150	1293	1568	1843	2310	2760
Minimum flashover (dry arc) distance	SW	mm	335	450	720	1150	2330	3720	3850	4925	6435	9585
Creepage distance		mm	840	1418	2550	3906	8595	13800	14000	18755	22850	35600
Creepage coefficient		1/s	2.5	3.2	3.5	3.4	3.7	3.7	3.6	3.8	3.6	3.7
Bending withstand load		N	3150	4000	1000	1250	4000	4000	5000	4000	5000	5000
Relative voltage creepage distance (nominal)		mm/kv	35	35	35.2	31	34.1	38	33.3	34.1	28.6	32.4
Size specification	D1	mm	325	550	280	350	500	600	430	660	711	930
	D2	mm	360	600	310	400	550	650	480	710	780	1000
	S	mm	15	25	18	18	25	30	25	25	35	35
	i	mm	20	20	18	24	24	24	20	24	32	32
	z		8	12	6	6	12	16	8	16	12	20
	a	°	22.5	15	30	30	15	11.25	22.5	11.25	15	9
	E	mm			425	410	760	500	500	550	600	505
	L1	mm	386	415	685	810	1880	1670	1335	2070	1955	2735
	L2	mm	420	602	1170	1600	3110	4680	4770	5945	7556	11155
	L3	mm	15	32	315	315	450	580	540	585	661	970
	L	mm	806	1017	1855	2410	4990	6350	6105	8015	9611	13890

      Our Services   To provide you with product technical advice, troubleshooting, operation maintenance, complaint handling and other services.   To provide you with product instructions and all technical information in contractual arrangements.   Strict implementation of “24-houre service”, reply within 24 hours after receiving service information.   If any problems were found inside the product quality, we’ll provide you with the fastest, most convenient service to reach your satisfaction.   Three months after product being put into operation, we’ll call the user or provide on-site visit services to understand product operation status and users’ feedback.     Company Information   Enterprise synopsis The company has mainly devote itself to researching, developing and manufacturing high voltage and ultra-high voltage AC/DC transformer bushing products and various voltage level’s AC/DC insulation outlet devices. Now the company is capable of manufacturing AC bushing up to 1700kV, DC bushing up to ±800kV,  and accordingly has become the first domestic manufacturer which has successfully put independently researched and developed DC bushings into operations. In the meanwhile, the company is also capable of assembling and manufacturing insulation outlet devices up to DC ±800kV, AC 1000kV. With reliable and qualified products, excellent after-sale services, brand new management concepts and continuously improving supporting facilities, Electrical Accessory Subsidiary of TBEA Shenyang Transformer Group Co., Ltd. is willing to serve the construction of global transformer companies and domestic and overseas electric transmission & transformation industries all the time.   Equipment introduction The company is well equipped with advanced testing and manufacturing facilities: an imported fully automatic rewinding center, an imported kerosene vapor phase drying equipment, an imported RIP bushing vacuum drying&casting equipment, a world only 1000kV OIP&RIP bushing fully automatic rewinding machine, and a 1200kV series resonance reactor and a 3600kV impulse voltage generator in the testing hall which has high quality shielding materials that guarantee the background Partial Discharge in the test hall is less than 2pC. The first class hardware facilities, perfect testing method, good testing environment and powerful production capacity guarantee the stability and excellence of our products.     Overview of Insulation Outlet Device and Insulation Parts Electrical Accessory Subsidiary has a strong ability of scientific research, development and manufacturing based on TBEA’s strong scientific research and technology capacity. Our company has long been supplying insulation outlet device for AC and DC transformer, zinc oxide lightning arrester and a variety of insulation parts used in the transformers to TBEA. Currently, our company has the ability of assembling and manufacturing AC 1000kV &below and DC ±800kV & below insulation outlet device. Meanwhile, we are also capable of repairing foreign and domestic insulation outlet device. Our company can use high quality insulation materials produced by designated foreign or domestic manufacturers as per our customers’ requirements and process various insulation parts adopting advanced technics and equipments.    The product type 1. ±800kV Oil-gas DC bushing 2. ±400kV&below Resin-impregnated paper condenser DC bushing 3. 1700kV&below Oil-impregnated capacitor type bushing 4. 800kV Oil-impregnated capacitor type bushing with composite external insulation 5. 252kV&below Resin-impregnated paper condenser AC bushing 6. 252kV&below ETG bushing The insulation outlet device for converter transformer  Insulation parts      Project ±800kV Oil-SF6 DC Bushings Hami-Zhengzhou DC Hami Substation Project   ±400kV Oil-SF6 DC Bushings Jinsu Project, Yulong Convertor Station Project   ±186kV Resin-Impregnated Paper DC Bushings Gaoling Back-to-Back Extension Project   ±1700kV Oil-Impregnated Paper Capacitor Type Bushings India Energy Company Test Transformer Project   800kV Oil-Impregnated Paper Capacitor Type Bushings India UPPTCL Project   550kV Oil-Impregnated Paper Capacitor Type Bushings Shanghai Fengjing Power Plant Project   330kV Oil-Impregnated Paper Capacitor Type Bushings Yulin Power Plant Project 220kV Oil-Impregnated Paper Capacitor Type Bushings Huaneng Tongjiang Wind Power Generation Project