33 kv pin type insulator pdf

For high voltages 33 kv, it is a usual practice to use suspension type insulators shown in fig. Types of insulators complete knowledge database of. High voltage polymer 33kv pin insulator weathersheds made of silicone elastometric compound or silicon alloy shall be firmly bonded to the sheath, vulcanized to the sheath or molded as part of the sheath and shall be free from imperfections. High strength 69 kv post, horizontal clamp top, rigid gain base. This is the first developed insulators and being used for overhead lines for voltage grade up to 33 kv. Page 3 of 43 specification ets100101 ver 5 ergon energy corporation limited abn 50 087 646 062 1. Therefore, in this types of insulators in transmission lines insulator is not economical beyond 33 kv. Specification polymer insulator 18 technical specification for polymer pin insulator scope. This specification also covers the requirements for guystyle stay wire insulators. Depending upon the working voltage, the desired number of discs can be connected in series. Gray glaze is standard on all station post insulators. About 5% of these are power accessories, 5% are power distribution equipment. 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. Polymer pin insulator, composite pin insulator, silicon pin insulators are different names for polymer pin insulator.

In the event a te insulator from this range is found to demonstrate. 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. Mounting covers requirements for 11kv and 33 kv composite line post insulators for use on. Types of insulators in transmission lines electrical4u. Conductor wire is passed through this groove and secured by binding with the. Line insulator 11kv 5kn polymer pin insulator manufacturer. Unless otherwise stated, this term does not include the insulator pin. Product description of 33kv porcelain pin insulator. Pin type insulator can be one part, two parts or three parts type, depending upon application voltage in a 11 kv system we generally use one part type insulator where whole pin insulator is one piece of properly shaped porcelain or glass.

Each unit or disc of suspension type insulator is designed for low voltage, usually 11 kv. There is a groove on the upper end of the insulator for housing the. An electrical insulator is a material whose internal electric charges do not flow freely, and which therefore does not conduct an electric current, under the influence of an electric field. The cost of pin type insulator increases rapidly as the working voltage is increased. Where more than one insulator are packed in a crate, separator shall be fixed between the insulators to keep individual insulator in position without movement in the crate. Each insulator disc is designed to operate for 11kv. Evaluation of electrical properties of 11kv pin and suspension insulator smt. 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. Manufacturers,suppliers,aluminium stirrups,pole line. 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. What is the maximum voltage level upto which the pin type insulators can be used. Pin type insulators are used for transmission and distribution of electric power at voltages upto 33 kv.

Normally this type of insulators used for low voltage side in case of section pole or terminal pole. Technical specification for outdoor porcelain station post insulators page 1 of 12 specification ets100102 ver 2 ergon energy corporation limited abn 50 087 646 062 1. A wide variety of 33kv pin insulator options are available to you, such as application, type, and material. 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.

Bottom end metal fitting shank of pin insulator should be as per is. There is a groove on the upper end of a pin insulator for housing the conductor. This specification applies to pin, strain shackle, line post and long rod insulators, which will be installed on 3 phase 0. The high voltage polymer pin type insulator weathersheds should. The versatile neck designs in c, f, k and j, side and top grooves, allow the acceptance of. A perfect insulator does not exist, but some materi. Post insulators reliable use in plant construction. We are an approved vendor in most discoms in india also supplied material in different part of africa. They are secured on the cross arms of the pole to carry power lines.

Which type of insulator is used on 2 kv transmission lines. Nzi 33 920 pin type tie top 33kv, 920mm creepage, 32mm groove, bs large steel head thread r31 spindle, grey, 16. Level of automation achieved and lists of area where manual processing exists. A wide variety of insulator pin 33kv options are available to you, such as application, type, and material. China 33kv pin type insulator factory, manufacturers and. These are used in power distribution system for 11kv and 33kv. Types of insulators in transmission lines properties of. The 33 kv overhead lines crossing over buildings or.

Technical specification of electrical materials polymer. Pin type insulators are generally not used for voltages beyond a 1 kv b 11 kv c 22 kv d 33 kv ans. Pdf analysis of surface flashover of 33kv pin type insulators due. Manufacturers, suppliers of aluminium stirrups, pole line hardware fittings,power transmission line hardware, insulator hardware,steel forged hardware from india. Therefore, lapp insulators offers a wide product range in the low and medium voltage range for the use of 10 kv 100 kv. The conductor passes through this groove and is bound by the annealed wire of the same material as the conductor. Our post insulators from the latest high performance ceramics have been in use for many decades in switchgear and capacitor bank platforms. This range of te porcelain post insulators is designed for use on 33kv distribution networks and has been selected based on featured best suited to new zealand environmental conditions. It is a formed, single layer shape that is made out of a nonconducting material, usually porcelain or glass. Chhattisgarh tender supply of 33kv porcelain pin insulator to 33 kv polymer pin insulator to 33kv polymer pin insulator of pakhanjore incoming line from 33kv ab switch kapsi to 33kv ab switch badgaon and. Pin type insulator how pin type insulator are designed the pin insulator is designed to secure the conductor to itself. Nominal voltage kv 11 15 22 33 15 22 33 creepage distancemm 255 298 432 630 432 673 900 dry flashover 75 80 110 100 125 140.

The insulator has to withstand the potential stress between conductor and earth. It is thought to be the earliest developed overhead insulator and is still popularly used in power. Level of automation achieved and lists of areas where manual processing exists. Technical specification for overhead line porcelain. Dulhunty power insulator section i type iec class xwp70 xwp100 xwp160 creepage distance, mm 400 400 450. Technical specification for overhead line porcelain and. The standard pin insulators shall be of designation type b of is. The offered 33 kv pin insulator has been precisely engineered on set industrial norms and standards and available at the best economical prices. Polymer pin insulator 11kv pin insulator with gi pin. The discs shall be cap and pin, ball and socket type, radio interference and have characteristics as shown in tablei and all ferrous parts shall be hot dip galvanized as per the latest edition of is.

Line post distribution kv post, horizontal clamp top with long pintle bolt, rigid gain base. The application areas of our medium voltage insulators are versatile. We have experience with the manufacture of post insulators since 1930. Length of thread on shank should be minimum 110 mm f o r 1 1 k v p i n and mm for 33 kv pin insulator. Technical specification for overhead line porcelain and glass. Supply of 33kv porcelain pin insulator to 33 kv polymer. Different types porcelain insulator make the power system varied. Aug 24, 2011 there is a groove on the upper end of the insulator for housing the conductor. And the 33kv porcelain pin insulator is a common type of porcelain insulator. The versatile neck designs in c, f, k and j, side and top grooves, allow the acceptance of largediameter. For short circuit loads only, the maximum recommended working load is 100% of published ratings when using formulas from ansi c371972. Being manufactured from optimum quality raw materials, our range of pin insulators has the capacity to withstand efficiently in the line voltage. Polymer insulator line post insulators manufacturer from.

Technical specification for outdoor porcelain station post. A wide variety of 33kv pin insulator options are available to you, such as application, type. Overhead system can be designed for operation up to. We are a renowned manufacturer, supplier, and exporter ht pin insulators, high tension disc insulators, high tension post insulators, low tension shackle insulators, etc. Rashtriya electrical is a wellrenowned company and is indulge in the business of overhead line insuator form 1969. Mounting covers requirements for 11kv and 33 kv composite line post insulators for use on overhead power transmission lines operating at a nominal voltage of 11kv with highest system voltage of 12 kv at a frequency of 50hz and nominal voltage of 33kv with highest system voltage of 36kv at a frequency of 50hz. Composite pin insulator,high voltage polymer 33kv pin insulator. Polymer pin insulator we manufacture all types of polymer insulator in india, delhi. The live conductor is place on the top of the insulator and the bottom of the insulator in connected to earth.

China 33kv pin type insulator pw33y china pin insulator. Schedule a guaranteed technical particulars 11 kv disc. Purpose and scope this specification sets out the requirements for the manufacture, testing and delivery of. Suspension type insulators are cheaper than pin type insulators for voltages beyond 33 kv. Tenderers are invited for the design manufacture testing and supply of the fitting and accessories for. Nzi 33920 pin type tie top 33kv, 920mm creepage, 32mm groove, bs large steel head thread r31 spindle, grey, 16. 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. The insulator strings shall consist of standard discs for use in three phases, 50 hz 33 11kv ss of wesco in a moderately polluted atmosphere. Pin insulators are the earliest developed overhead insulator, but are still commonly used in power networks up to 33 kv system. In order to assess the pollution behavior, 33 kv pin type insulator was selected as a sample insulator and been subjected for natural pollution at. Technical specification for overhead line porcelain and glass insulators. There is a groove on the upper end of the insulator for housing the conductor. Gaoneng electric is one of the leading 33kv pin type insulator manufacturers and suppliers in china, equipped.

Schedule a guaranteed technical particulars 33 kv disc. Polymer pin insulator, composite pin insulator, silicon pin. The insulators shall be porcelaincomposite type pin insulators. Evaluation of electrical properties of 11kv pin and. There are several types of insulators but the most commonly used are pin type, suspension type, strain insulator and shackle insulator. Pin insulator, porcelain insulator, ceramic insulator manufacturer supplier in china, offering 33kv pin type insulator pw 33 y, 2500kva three phase intelligent automatic voltage stabilizer, 500kva three phase automatic voltage regulator and so on. A composite insulator with one large and one small long sheds and one with one large and two small sheds are all shortened test objects of actual kv composite insulators. The dimensions and construction of lt11kv33kv pin insulators should be as per is mentioned in clause 2 with. Pin type insulators or pin insulators are popularly used in electric distribution systems up to 33 kv voltage level.