Specification for 36 kv post insulator npcil etenders. Line post distribution hubbell power systems is a proud member of the hubbell family. Orientcomposite post insulator,polymer post insulator. Type composite station post insulators, hollow core type. When you want to release the wire, just pull the pin. Porcelain pin post insulator 20 kv porcelain insulator. Mar 09, 20 pin type insulators as the name suggests, the pin type insulator is secured to the cross arm on the pole. Pin type insulator as the name suggests, the pin type insulator is secured to the crossarm on the pole. The zareba yellow pinlock t post insulator has a molded pin that holds the wire tightly. Types of insulators in transmission lines electrical4u. Higher transmission voltages use suspension insulator strings, which can be made for any practical transmission voltage by adding insulator elements to the string. The line post insulators are manufactured for vertical or horizontal mounting. Porcelain station posttype insulators are used in substations to support buses or apparatus.
Design solid core post insulators 7 the insulation performance of a post insulator column is a function of the height, creepage distance, arcing distance of the insulating part s as well as the number of insulator units for a defined height and follows the standards iec60071 and iec60273. There are several types of insulators but the most commonly used are pin type, suspension type, strain insulator and shackle insulator. From salty seaside substations to highly corrosive petrochemical facilities along the equator, porcelain insulators enable continued operation at the designed voltages. Today, after nearly sixtyfive years of service on thousands of installations, lapp station posts offer station design engineers maximum economy and troublefree service in a wide variety of voltage and strength ratings. For short circuit loads only, the maximum recommended working load is 100% of published ratings when using formulas from ansi c371972.
Prior to this version, the curve was limited to being a single rectangle. Ppc iec porcelain solid core station post insulators ppc insulators. Porcelain pin type insulator is made by ceramic material and brown or grey glazed. We have experience with the manufacture of post insulators since 1930. We manufacturer porcelain pin type insulator and composite pin insulators. Advantages of suspension type i suspension type insulators are cheaper than pin type insulators for voltages beyond 33 kv.
You may now input as many curves of whatever shape you like with each curve having as many points as necessary to accurately describe the strength of the insulator. Composite insulators offer,polymer insulator offers,silicone insulator offers custom specified, manufactured, tested and reliable for their service life polymer ins we manufacture high voltage insulator 10kv500kv series composite insulators, also known as polymer insulators or silicone rubber insulators, which include suspension long rod silicone rubber insulators, pin type composite. Clamp top line post insulator, inclined horizontal clamp mounting direction. The circular surface of the cylinder is corrugated to increase the leakage distance.
Pin type insulators as the name suggests, the pin type insulator is secured to the cross arm on the pole. Suspension and post type insulators for electric power. Stranded wire is made up of multiple strands of wire braided together. Post insulators are used in areas with heavy pollution and risk of read more post type insulators. Base line designation nominal voltage kv height creepage mount end h11536 h158 h176 h112 h157 h11632 h168 h11173 h11174 h11461 h11472 h11529 h11654 h11663. Protect you and your animals from potential painful injuries and from sharp edges with post insulators. All 3 loads and their interactionsshould be used in the evaluation. Station post insulators page 6 of 12 specification ets100102 ver 2 ergon energy corporation limited abn 50 087 646 062 7. The amplitude of free swing of conductors is larger in suspension. No dominant type as standard insulator in clean areas always perform life cycle cost analysis almost dominant solution in china.
The zareba yellow pinlock tpost insulator has a molded pin that holds the wire tightly. Post insulators are used in areas with heavy pollution and risk of read more. Polymer post insulator core is protected by outer housing made of silicone rubber. Post insulators have a higher number of petticoats and a greated height compared to pin insulators.
Depending upon the working voltage, the desired number of discs can be connected in series. Tietop type fneck nneck 9 top and sidewire groove top wire. The linepost insulators are usually manufactured as onepiece solid. Composite pin insulators have tie top and clamp top types, which is made by polymer type silicone rubber. Line post insulators can be used in the general area and the ac power lines in heavy polluted areas, played insulation and support conductors. Insulators ceramic or glass station post for indoor or outdoor use voltages greater than v a.
Pdf a detailed investigation of overhead line insulators. Porcelain pin post insulator 20 kv is a unique design, combining the advantages of the line post insulator with the advantages of the pin type insulator and used on high voltage distribution lines. Pin insulator is mainly used on distribution lines from 6kv36kv. Posttype insulators the post insulators are used on distribution, substation, and transmission lines and are installed on.
Composite station post insulators hollow core type 245800 kv english pdf brochure hollow composite insulators 721,200 kv design for reliable performance english pdf brochure safety considerations favour hollow composite insulators on high voltage apparatus english pdf article. The main function of post insulator is insulator from earth or from another live part. Poecelain line post insulator horizontal mounting clamptop type with curved base standard particulars cat. Aug 24, 2011 there are several types of insulators but the most commonly used are pin type, suspension type, strain insulator and shackle insulator. High strength 69 kv post, horizontal clamp top, rigid gain base. Definitions, test methods, acceptance criteria for post insulator units, standards australia, 2005 12. There is a groove on the upper end of the insulator for housing the. The conductor passes through this groove and is bound by the annealed wire of the same material as the conductor. Porcelain line post insulator standard particulars iec class lightning impulse withstand voltage kv power freq.
Research and further development resulted in the optimization of our post insulators for distribution plants and switchgear systems. We offer an deal in wide range of polymer post insulators which include suspension long rod silicone rubber insulators, pin type composite insulators, station post polymer insulators, cross arm silicone rubber insulators, electrified railway polymer insulators, polymer dise insulator, polymer lighting aresster as the replacement of porcelain insulators, silicone rubber. Pdf performance study of line post insulator under different. Vertical line post 15 kv clamptop stud base 3410 tap. Ppc offers the most comprehensive range of porcelain post insulators up to highest ac and dc system voltages with the most progressive technology, engineering and life time. All lapp station post insulators meet ansi leakage requirements. Main applications reactors, disconnectors, busbar supports design and type tests iec 61462, iec 60273 system voltages 245 550 kv ac, 800 kv dc. American national standard for insulatorswet process porcelain and toughened glasstransmission suspension type. Composite post insulator 145kv 8kn cantilever strength. Tpost insulators work well for poly tape, wire, and rope. Ppc porcelain solid core post insulators and operating rods.
The load is being transmitted to the fibre glass core by metal end fittings. Insulators types of electrical insulators in overhead lines. Pin type insulator consists of single or multiple shells arranged in parallel and mounted on a crossarm of the pole or tower. The scope of this technical paper is to discuss about construction, types. There is a groove on the upper end of the insulator for housing the conductor. Composite post insulators 24kv with forged aluminium or galvanized cast iron end flanges. Longitudinal load can not use just one of these to determine if a post insulator is adequate for the anticipated loads. Post insulator is always called solid core station post insulator, post insulator is extensively used in station and substation. Contains 5 strands of electrical conductors and has a breaking load of 150 lbs. The post insulator shall be sound, free from defects, thoroughly verified, smoothly glazed and type of post insulator shall be.
Poly tape 200 meter is ideal for equine fencing since it is more visible than traditional wire. These insulators exhibit high resistance to puncture. Post insulator a type of insulator in the 1930s that is more compact than traditional pin type insulators and which has rapidly replaced many pin type insulators on lines up to 69 kv and in some configurations, can be made for operation at up to 115 kv. Technical specification for outdoor porcelain station post.
Porcelain insulator insulation ceramics pottery clay crafts ceramica pots clay pots ceramic pottery. We manufacture high voltage insulator 10kv500kv composite post insulators,polymer insulators suppliers, silicone insulators, which include suspension long rod silicone rubber insulators, pin type composite insulators, station post polymer insulators, cross arm silicone rubber insulators, electrified railway polymer insulators, polymer insulator, polymer lighting arrester. This standard applies to post insulators and post insulator units of ceramic material or glass intended for indoor or outdoor service, and to post insulators of organic material intended for indoor service in electrical installations or equipment operating on alternating current systems with a nominal voltage greater than v and a frequency not greater than 100 hz. Our post insulators from the latest high performance ceramics have been in use for many decades in switchgear and capacitor bank platforms. As 3608 insulators porcelain and glass, pin and shackle type voltages. Suspension type insulator being economical as compared to pin type insulator for high voltage overhead transmission line. Post type insulators are usually used in substations. We can mount this type of insulator on supporting structure horizontally as well as vertically. These insulators are constructed in the form of a cylinder.
Silicone rubber housing platinum curing, solid high temperature vulcanized htv silicone rubber based on. Distribution design manual vol 5 overhead bare conductor. Xdge solid core post insulators are widely used in power plants, transmission substations, distribution. It is typically used in applications not subject to repeated stresses, such as house wiring. Ppc porcelain ceramic post insulators ppc insulators. On the top of the insulator the conductor bound into a groove,which is cemented on. Ansi post insulator code number,ansi post insulator created date. Composite station post insulators hollow core type 245800 kv english pdf brochure hollow composite insulators 721,200 kv design for reliable performance english pdf brochure safety considerations favour hollow composite insulators on high voltage apparatus english pdf. Porcelain insulator petticoats should be alternate shade design, suitable for heavily polluted area. May 18, 2011 post type insulators are usually used in substations. The heavyduty flange holds the insulator securely to a 1. Disctype insulators applied as a strain tension string.
Pdf in this paper, an electrostatic field computations are carried out around the line post insulator under clean and. Polymer station post insulators for 69 to 345 kv applications. Composite station post insulators 245 800kv composite. Each insulator disc is designed to operate for 11kv. Electrical performances of line post insulators in 22kv. We also produce polymer insulator post type in accordance with ansi c29.
Ansi 5731, ansi 5732, ansi 5733, ansi 5734, ansi 5735 the type of line post insulator used in south southafrica can be classified as capped line post insulator ep356, ep480, ep802 cap less line post insulator ep472, ep965, ep8 composite line post. The designing of sheds or petticoats should be such that even when the outer surface is wet due to rain,the inner dry surface provides sufficient leakage resistance. Pintype insulators are unsuitable for voltages greater than about 69 kv linetoline. Insulators ceramic or glass station post for indoor and outdoor use voltages greater than v a. Post insulators are similar to pin insulators, but post insulators are more suitable for higher voltage applications. Ppc vertical clamp top line post insulators are mounted upright on crossarms and structures.
Insulators line post porcelain 106 au insulators tietop t xarm ground end live end pin post gain base vertical clamp top c horizontal clamp top h cat no. Composite post insulator 72,5kv 16kn cantilever strength. If you dont have this plugin, you can download it for free, from the adobe site. The linepost insulators are manufactured for vertical or horizontal mounting. Gray glaze is standard on all station post insulators. Polymer insulator line post insulators manufacturer from. The onepiece design utilized in ppc insulators tie top line post insulator eliminates the need for suspension. These insulators are used for busbars, airswitches or for other special applications. Types of insulators complete knowledge database of. Composite post insulator like most of composite insulators consists of a cylindrical solid insulating core made of resin impregnated fibres which bearing the mechanical load. Composite insulators transmission line post type b. Surefit black tpost insulator 25bag3856 the home depot. Jun 27, 2019 suspension type insulator being economical as compared to pin type insulator for high voltage overhead transmission line. Polymer line post insulators with horizontal and vertical.
Types of wire conductors most wire conductors are copper. There are 5 types of insulators used as electrical overhead insulation pin. The conductor passes through this groove and is bound by the annealed wire of. Typical application areas for different types of insulators. Checking post insulators with multiple interaction curves. Orientline post type insulators composite insulator. Profiles of test insulators a pin type insulator b pin post insulator and c line post insulator. As 4436 guide for the selection of insulators in respect of polluted. Level of automation achieved and lists of area where manual processing exists. Post type insulators the post insulators are used on distribution, substation, and transmission lines and are installed on.
Poecelain line post insulator standard particulars cat. Surefit black wood post insulator 25bag3853 the home. Electric fence insulators are handy for hanging electrified wire to posts without losing any energy through the post itself. Post insulators can be manufactured, designed and tested in accordance with ansi c29.
197 1295 693 946 1434 860 97 1077 1218 85 88 321 805 156 1171 927 296 355 1598 1532 521 279 89 626 709 247 805 436 1335 1048 862 31 66