On center break switches, polymer insulators are available on 69 kv and 115 kv switches with a maximum short time peak rating of 65 ka. Consult the factory for higher short circuit ratings. Current interruption using high voltage airbreak disconnectors. Overhead distribution switches are mounted on wood poles to break or pick up load, loop, and line charging current on the scl 26. Interrupter attachments can be easily mounted to most isolating switches to provide a complete interrupter switch. The vbs switch ratings are as listed in table 1, ansi c 37. Air break switch, ab switch manufacturers, 11kv 22kv 33kv. Ideal for either substation or transmission applications, pascor switches are engineered to the highest standards to meet and often exceed all.
For more information on a product or service, call us today at 276 6883328. Switches are permitted in the working space, but switches, or any part of the switch, must not be installed in the climbing space. All frames are designed and constructed for termination of the transmission line a 10,000 pounds working load. There is total involvement in the pascor quality program from the employee who answers the phone to the employees who crate and ship our switches and motor operators.
The switch may be operated using a manual operator or electrical motor operator. Turner electric is the industry choice for transmission switches hinge mechanism the hinge end of the switch is enclosed to. Discover our group operated switches southern state. In the air break, circuit breaker the contact separation and arc extinction take place in air at atmospheric pressure. Switches are easily upgraded for automatic operation and load breaking. Singleway vertical break switch cleavelandprice inc. V3 vacuum interrupters, with three vacuum bottles in series, can break loads up to 2000 amps at 69 kv. The hvw is available for use with all seeco side, center, center vee and double end break switch configurations, at voltage ratings of 46230 kv. Attach the operating numbers to the pole in a vertical configuration below the switch handle. The lineboss 46 kv and 69 kv sidebreak switches are the lowest cost to own switches available today. Hps manufactures industry leading turner electric transmission, substation, and distribution switches. Air break switch is used to connect disconnect the power system of a certain part of overhead cable and transformer from the main power line.
The air break switch is operated manually when their handle is placed on a ground level. A high speed whip type air switch attachment is used to interrupt transformer magnetizing and line charging current. Blade stops at 70 when switch mounts in vertical and underhung position. Turner electric was founded in 1953 and quickly became the leader in transmission switches. This switch will be used in nearly all new installations and replacements where practical. The maximum voltage for the switches is up to 35kv. Design guide for rural substations usda rural development. Description side break style switch in a phaseoverphase configuration, with horizontal upright mounting on an aluminum support structure. Integer style switches have a onepiece steel or insulated base which supports the insulators of all three poles.
Aluminum vertical break disconnect switch all ratings. The air interrupter switches shall be gang operated, stored energy type, 3 pole, single throw, 2 position open close and either 600 or 1200 amperes as shown on the plans. Single bottle interrupter seeco manufactures a single bottle interrupter for those applications where the recovery voltage does not exceed 30 kv peak and the maximum interrupting current is 3000 amps. The switch is supplied with a complete operating mechanism including swing. Vertical break 4000 amp ideal for either substation or transmission applications, pascor switches are engineered to meet the highest standards to meet ansi requirements. The southern states type ev2 is a three phase, group operated, vertical break air disconnect switch. Gang operated air break switch inertia engineering and machine works, inc. The design utilizes the best features of both copper and alu.
Vertical tiered outboard loadbreak switches are used to replace kpf style switches. The ease of installation that unitized distribution class. Description eatons cooper power series mforce switch is a distributionclass, gangoperated, factory unitized threephase overhead loadbreak switch. Ideal for either substation or transmission applications, pascor switches are engineered to the highest standards to meet and often exceed all applicable ansi and nema requirements. The rated withstand and radio influence voltages shall be as shown in table a for installations below 3300 ft. Southern states manufactures the broadest array of group operated outdoor air disconnect switches of any supplier in the world. B p1 overview ak power solutions has been a major supplier of all air break switches installed in australia over the past 17 years. The air acts as a dielectric medium for the airbreak switch. The design of gang operated air break switches are depends on their uses and application. Vertical break, center side break, double side break, single side. Vertical break switches are available in voltage ratings from 15kv to 230kv. The switch mechanism shall be externally operable from the front or side of the cubicle.
Poles can be mounted in a horizontal upright, vertical, or under hung position. This disconnecting device will typically consist of a molbab motoroperated load break air break switch, although a circuit switcher could be required under some special situations. Switches of a given voltage rating except vertical break style switches rated 2534. Due to the shearing action of the mforce ice shields, the closing operation can be accomplished with one motion. Turner offers the beartrap switch for a variety of transmission and substation mounting applications please see the following pages, which outline the available one, two, and three way configurations. Type ea, ea1, ea2 eab, ea1s and vbv vertical break. Air disconnect switches, power transmission bland, va. The ev2 can be used for any conventional air break switch application, including disconnecting and sectionalizing lines. Side break switches are available in voltage ratings from 15kv through 115kv. Vertical break parallel vbp vbs page 2 basic ratings and switch types the vbp switch ratings are as listed in table 1, ansi c 37.
In 2008, usco was acquired by hubbell power systems, inc. Ppl eu transmission structure before each 8 kv or 69 kv supply line crosses the customers facility fence and connects to the customers deadend. Type ea, ea1, ea2 eab, ea1s and vbv vertical break switches. High voltage disconnect switches ge grid solutions. Gw4 series disconnect switches are structured in double columns for single pole, one break, and horizontal rotary opening. Installation, operation and maintenance manual type agch5v group operated, outdoor, vee center break air switch 15 kv through 230 kv 1200 to 4000 amperes usco power equipment corporation post office box 66 leeds, alabama 350940066 telephone 205 6990840 facsimile 205 6990858. Lineboss air break disconnect switch attachment selection information amprupter the inertia amprupter utilizes expulsion tube interrupter technology to break current loads up to 900 amps at 27kv. Quick type e earthing switch attached to the switch andor to the fuse base insulators and equipped with quick spring mechanism with making capacity, quick type eb free standing earthing. Center break switches can be supplied with arc horns, quick break whips, or single bottle vacuum interrupters for loop splitting application. Abb medium voltage outdoor switches and disconnectors offering provides all solutions up to 38kv for disconnection, load break operation or automatic sectionalizing of overhead lines to allow grid optimization and smart grid, whether it is with sf6 insulation or air insulation, manually operated, motor operated or automatic scheme configuration with communication capabilities. Mv overhead switch disconnectors mv switches, disconnectors. Air break switch disconnectors are a vital part of any overhead line network, providing crucial points of isolation. Pascor air break switch technology pascor offers versatility and reliability in its entire line of group operated switches. Gw4 double column center break disconnect switch gw4 double column center break disconnect switch conductive rod contact finger.
The lineboss 46 kv69 kv sidebreak switches are the lowest cost. Quick install center break switch with porcelain insulators and quick break whips, mounted on a steel pole. Airbreak switch article about airbreak switch by the free. Vacuum bottle interrupters are not in the current path during the switch closing operation, and have no fault closing capabilities. Air break switch suppliers, ab switch manufacturers, 11kv 22kv 33kv ab switch price list, 100a 200a 400a 800a 1250a ab switch companies, spares parts. Hubbell is the only manufacturer of a complete range of airbreak switches and accessories, from 15.
Switches included enter into the following classifications. The switch whose contacts open in the air and quenching of an arc achieves by compressed air, such type of switch is called an air break switch. The earliest circuit switchers were designed and supplied as a combination of a circuit breaking interrupter and an inseries isolating disconnect switch. Why do power users choose the series 2000 circuitswitcher over any other circuitswitcher. Switch interrupter attachments southern states, llc. Full load break loop split line charging high speed quick whips wood, steel, concrete or laminated wood. Pascor atlantic, in bland, va, provides exceptional air disconnect switches to the power transmission industry. In air break circuit breaker high resistance principle is employed. M force threephase switch switches and disconnects ca008004en ffective anuary 2016 supersedes une 2015 coper power series. Fully unitized or modular switches are hung on the pole in hours. Purchase highquality vertical switches from our switch manufacturer in bland, va.
Today, hps continues to manufacture the usco brand transmission line and substation disconnect switches and accessories. It interrupts the small excitation current of a transmission line or the capacitive charging current. These interrupters increase the load break capability of the disconnect switch and can be applied for switching load or fault currents of the associated equipment. Joslyn hivoltage series rf2 verticalbreak air disconnect switches.
A schematic diagram of such an air break switch is shown in figure 1. The air break switches install in outdoor and mainly use for switching and isolation. Vertical break parallel vbp vertical break slant vbs. The air break switch is mostly installed in the distribution network as a switching point. Air break switch manufacturers, suppliers, gang operated. Vertical break quick install switches can be supplied. Pascor customizes controls on each switch to suit the application.
It is used for load break, loop break, line charging and cable charging switching operations. In this circuit breaker arc is expanded by the mean of arc runners, arc chutes, and arc resistance is increased by splitting, cooling and lengthening. Earthing switches indoor air insulated switch disconnectors february 27, 2017 slide 14 earthing switches available for nal. Loadbreak switches with arc chutes that obscure a direct view of the contacts with. Hubbell is the only manufacturer of a complete range of air break switches and accessories, from 15. The 27 kv, 100 amp, 125 kv bil, open style fused switch stock number 54.
It can be applied on vertical break and side break switches in both standard and slant style configurations. Pascors intent is to produce a quality product through involvement of all pascor coworkers. In air break switches for currents of up to 35 kv, including earlier units designed for currents of 110 kv and higher, the arc extinguisher is located outside the compressed air reservoir and is connected to it by an insulated air line. Threeway switches seeco southern electrical equipment company. Quick install switches are designed to address issues that customers have with other transmission switch designs. We are manufacturers and suppliers of high voltage electrical air break switch as per demands of our domestic and international customers. Air break switches brochure ak power solutions pty ltd quality endorsed company asnzs iso 9001.
Most overhead line networks are designed so that when a fault occurs or maintenance work needs to be carried out it is relatively simple, by means of a systematic series of switching operations, to isolate a certain section of the overhead line. It has three insulators and is operated by rotation of the outboard insulator. An air switch can be modified to include a series interrupter typically vacuum or sf6 for higher voltage and current interrupting levels. It is more effective and reliable as compared to another switch. Sep 08, 2015 air break switch disconnectors are a vital part of any overhead line network, providing crucial points of isolation. Turner type 2d switches can be used for station isolating and bypassing, transmission line sec tionalizing or preferred alternate throwovers. Publishers pdf, also known as version of record includes final page, issue. Joslyn versavac vacuum switches are used for pole top capacitor switching. Aluminum vertical break switch cleavelandprice inc.
Install the switch handle bottom when opened at a minimum of 15 feet above the ground line. The function of airbreak disconnectors in high voltage power. Indoor air switches and bus supportphase spacing and length of break. Air type load break switch interrupter switch emts air type load break switch interrupter switch with the arc unit of the peerfect extinction performance are distribution level gang operated side break switches for 15kv through 25kv on the overhead distribution feeders and outdoor distribution substations. Counterbalances are standard on all switches 115kv and above. Air break switch manufacturers, suppliers, gang operated switches. Theres no doityourself kit of individual switch poles and parts to be assembled in the field.
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