Typical application areas for different types of insulators. We are a leading manufacturer, exporter and supplier of power insulators. Insulators with grey glaze can also be supplied upon request. They are ideal for use with covered conductors because the low dielectric constant matches that of hendrix and other polyethylene con. Aug 24, 2011 there are several types of insulators but the most commonly used are pin type, suspension type, strain insulator and shackle insulator. All insulators are manufactured to the highest standard from high grade wet process porcelain and are usually glazed brown. Therefore, representative batches of every lot of pin type insu lators are tested on steel pin gauges which are in exact accordance with the n ela standard pin. Meister international is a proud member of the national association of electrical distributors and has over 35 years of international industrial business experience. Electrical centre a 1 11 kv 45 kn disc insulator nos 260. Ppc manufactures a wide range of low and high voltage pin type insulators designed for distribution. We offer high quality pin type insulators according to iec, ansi, bs standards and customers specifications. Suspension insulators are what originally made high voltage transmission possible, and consist of individual units designed to. Porcelain pin type insulator is made by ceramic material and brown or grey glazed. Porcelain insulator pin type insulator pin insulator consists of a single piece of ceramic or two or more ceramic components permanently connected together and intended to be mounted rigidly on a supporting structure by an insulator pin spindle.
Types of insulators in transmission lines properties of. Suspension type insulator the cost of pin type insulator increases if the voltage capacity will increased. Types of insulators in transmission lines electrical4u. They withstand weights of double digit tons over several decades and thus ensure the safe transportation of energy and power supply across hundreds of miles.
The versatile neck designs in c, f, k and j, side and top grooves, accepts large diameter conductors for easy tying. There is a groove on the upper end of the insulator for housing the. What is the maximum voltage level upto which the pin type insulators can be used. Insulators long rod distribution synthetic composite au 1011 insulators specifications unit glpds15 glpds28 glpds35 glpds46 recommended application section length l insulation length x dry arcing distance leakage distance low frequency flashover dry wet critical impulse flashover pos. The higher the placement of the insulator, the heavier the contamination. Arp recommends using preformed line products factory formed ties when attaching conductor to arp silicone polymer pin type insulators. Pin insulator as the name suggests, the pin type insulator is mounted on a pin on the crossarm on the pole. Hdpe insulators are 100% recyclable and our hdpe insulators can replace porcelain pin insulators, already pass the design tests in the international lab. Mps offers a wide variety of distribution insulators for applications up to 46kv. Gray glaze is standard on all station post insulators. A pin insulator is a device that isolates a wire from a physical support such as a pin a wooden or metal dowel of about 3 cm diameter with screw threads on a telegraph or utility pole. Both low voltage and high voltage designs are available and in compliance to applicable ansi class 55 and 56 standards. There is a groove on the upper end of the insulator. Ppc insulators for the transmission and distribution of.
Distribution insulator cross references distribution insulator cross reference chart click here for pdf version pin type insulators pin posts spools victor cat. Power lines supported by ceramic pin type insulators in california, united states a pin insulator is a device that isolates a wire from a physical support such as a pin a wooden or metal dowel of about 3 cm diameter with screw threads on a telegraph or utility pole. The pin balls shall move freely in the cap sockets but shall be so designed that they do not get disengaged while in service under various operating and atmospheric conditions. Pin type insulator features arp recommends using preformed line products factory formed ties when attaching. Shop for insulators pin type from platt electric supply. Most cap and pin insulators were installed many years ago. There are several types of insulators but the most commonly used are pin type, suspension type, strain insulator and shackle insulator. Polyethylene pin type insulators tietop overhead products description.
Voltage class of pin type insulator can be made up to 36 kv,10 kn. The features of cap and pin type insulator the end fittings. Highly resistant to lightning puncture, ppc insulators manufactures a wide range of low and high voltage pin type insulators designed for distribution and sub transmission circuits. Pin type and strain insulators accessory hardware catalogue. Fsk russian homologation lapp post ceramic 35220kv. Low voltage pin type insulators specification ansi c29.
Beyond operating voltage of 33 kv, the pin type insulators become too bulky and hence uneconomical. Polymer pin insulator 11kv pin insulator with gi pin. Conductor wire is passed through this groove and secured by binding with the. Technical specification for overhead line porcelain and. Tie top heads with a c, f and j neck designs are available.
The conductor passes through this groove and is bound by the annealed wire of the same material as the conductor. Rus listed peak demand porcelain pin insulators are rus listed. It is placed on the cross arm of the supporting tower. Ssen 60372 locking devices for ball and socket couplings of string insulator units dimensions and tests. We manufacturer porcelain pin type insulator and composite pin insulators. Insulators types of electrical insulators in overhead lines. An investigation of salt contamination on insulators and the. Our product range includes ceramic insulator, porcelain insulator, glass insulator, composite insulator, fuse cutout, surge arrester, power fittings, lamp holder, porcelain lampholder etc. D insulators pin type insulators highly resistant to lightning puncture, ppc insulators manufactures a wide range of low and high voltage pin type insulators designed for distribution and sub transmission circuits. Porcelain insulator,porcelain suspension insulator,pin type. Pin insulators are one of three types of overhead insulators, the others being strain insulators and suspension insulators. Suspension type insulators are cheaper than pin type insulators for voltages beyond 33 kv. Hendrix tietop insulators are molded of proprietary, gray, track resistant, high density polyethylene.
A pin insulator is a device that isolates a wire from a physical support such as a pin on a. Pin insulator is mainly used on distribution lines from 6kv36kv. It is a formed, single layer shape that is made out of a nonconducting material, usually porcelain or glass. Pdf contaminationdriven insulator failure is a problem that incessantly plagues distribution systems. The conductor passes through this groove and is tied to the insulator with annealed wire of the same material as the conductor. 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. Suspension type insulator consist one or more insulator unit connected together to form a string and hanged to the cross arm of supporting structure or tower and carry power conductor at its lowest extremity. Ssen 603831 insulators for overhead lines with a nominal voltage. The versatile neck designs in c, f, k and j, side and top grooves, allow the acceptance of largediameter. Pdf analysis of surface flashover of 33kv pin type insulators due. Beyond operating voltage of 33kv, the pin type insulator become too bulky and hence uneconomical. Meister international electrical insulator in stock ready. The construction of the pin type insulator is simple and requires less maintenance. Overhead products a3 polyethylene pin type insulators.
Exposure tests of insulators on okinawa have been made since 1985 and the results are as follows. A wide variety of pin type insulator options are available to you, such as application, type, and material. Technical specification for overhead line porcelain and glass insulators i specification ets100101 ver 5 ergon energy corporation limited abn 50 087 646 062. For insulators used in an approximately horizontal position, the value given in col.
Pin type insulator pin insulator consists of a single piece of ceramic or two or more ceramic components permanently connected together and intended to be mounted rigidly on a supporting structure by an insulator pin spindle. Especially ansi standard pin insulator are in very good finish and high cantilever strength. The conductor passes through this groove and is bound by the. 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. Polymer insulator line post insulators manufacturer from. Artificial rain test of outdoor long rod insulators pdf download available. Which type of insulator is used on 2 kv transmission lines. 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. Jun 27, 2019 because of limitations of pin type insulators for higher voltage, suspension type insulators are used. Composite pin insulators have tie top and clamp top types, which is made by polymer type silicone rubber. Each unit or disc of suspension type insulator is designed for low voltage, usually 11 kv. Pin type insulators as the name suggests, the pin type insulator is secured to the cross arm on the pole. Pin type insulator can be one part, two parts or three parts type, depending upon application voltage. No variation in the pin fit is permitted and unless the insulators comply fully with porcelain products standard, the entire lot is.
Distribution insulator cross re victor insulators, inc. Since 2003, meister international has been distributing the finest quality porcelain insulators and porcelain bushings to original equipment manufacturers oems and users of switchgear, transformers and busduct around the world. The caps and pins of the disc insulators shall be heavily galvanised and mechanically strong. Aug 24, 2011 pin type insulators are used for transmission and distribution of electric power at voltages upto 33 kv. 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. Printed wiring most electronic circuits are mounted on a plastic or fiberglass insulating board with printed wiring. These are used in power distribution system for 11kv and 33kv. The versatile neck designs in c, f, k and j, side and top grooves, allow the acceptance of largediameter conductors to permit easy tying. Fsk russian homologation lapp post ceramic 330750kv. For short circuit loads only, the maximum recommended working load is 100% of published ratings when using formulas from ansi c371972. For low voltages up to and including 11 kv one piece insulators can be used and two piece insulators are commonly used for 25 kv and for 44 kv up to and including 66 kv three and four piece insulators can be employed.
Pin type insulator are used for transmission and distribution of electrical power at voltage up to 33kv. Orient power is pin insulator manufacturer in china. The versatile neck designs in c, f, k and j, side and top grooves, allow the acceptance of. For high voltages 33 kv, it is a usual practice to use suspension type insulators shown in fig. Pin type insulators on sales quality pin type insulators. Pin type insulators or pin insulators are popularly used in electric distribution systems up to 33 kv voltage level.
Pin type insulators are used for supporting line conductors. Gostr certificate for the full range of post ceramic lapp insulators s. Since they are different heights from normal station posts, mps has developed a variety of these replacement silicone posts that are the exact same height as the porcelain. Download insulators catalogue pdf overhead line fittings uk ltd. They are secured on the cross arms of the pole to carry power lines. The insulators shall comply with the following tests as per is. Ansi class vi insulators victor porcelain products cooper lapp ohio brass santana a b chance 88r 552 253s np8d8 6188r 12847 pi 22081 c9052. Pin hole diameter recommended pin length leakage distance dry arcing distance p551gr p552gr p553gr 214 338 2. Technical specification for overhead line porcelain and glass insulators ets100101. Cap and pin type insulator consists of porcelain units, iron cap and insulator end fittings, can be made from porcelain and polymer materials. The cost of pin type insulator increases rapidly as the working voltage is increased. Low voltage pin types are manufactured and tested to the requirements of ansi standard c29. Lapp insulators produces high quality products for high voltage and railway electricity networks since 1930. Dulhunty power insulator section i type as class sh.
Unless otherwise stated, this term does not include the insulator pin. The pin insulator is used in power distribution for the voltage up to 33kv. There is a groove on the upper end of the insulator for housing the conductor. The pin of the insulator damaged the insulator thread. Peak demand porcelain pin insulators are designed to meet or exceed the requirements of ansinema standard c29. As the name suggests, the pin type insulator is secured to the crossarm on the pole. Salt spray factory pollution damage due to target practice. Our insulators are designed to meet the onerous test.
Description the plp polymer insulators are ideal for use in. Pin insulators are the earliest developed overhead insulator, but are still commonly used in power networks up to 33 kv system. Distribution insulators archives maclean power systems. An investigation of salt contamination on insulators and. We offer line post and deadend insulators for your power and utility needs. There is a groove on the upper end of a pin insulator for housing the conductor. Meister internationals suspension insulators are made to be more cost effective than pin type insulators when it comes to high voltage transmission. These insulators can be used in any application that calls for porcelain insulators. Types of insulators complete knowledge database of. Polymer pin insulator, composite pin insulator, silicon pin insulators are different names for polymer pin insulator. Base line designation nominal voltage kv height creepage mount end h11536 h158 h176 h112 h157 h11632 h168 h11173 h11174 h11461 h11472 h11529 h11654 h11663 h11669. Silicone cap and pin archives maclean power systems.
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