Load break switch a load break switch is a disconnect switch that has been designed to provide making or breaking of specified currents. Switch load currents up through 900 amperes at distribution voltages up to 34. They can be used with a main bus system so that one switch acts as a main and the others provide feeder type function. Figure 3 front view pmh4 shown door removed table 3 data and codes for types pmh3 and pmh4. Isolator therefore used to isolatedisconnectbreak load. Erik jonsson, nina sasaki aanensen, and magne runde. Load break switches main switchgear hager australia. Fuji air load break switch type lbs is provided with current limiting power fuses and type lb is not so fitted. Mv overhead switch disconnectors mv switches, disconnectors. Mv indoor disconnectors, load break switches, earthing switches. With noloadbreak bypass designs, the automatic transfer switch must be in the same position i. The pcesair type load break switch offers a simple and compact construction with epoxy insulators, double switch blades, forged contacts with arc quenching chamber, lagging pin and loop less current path.
Whether they are manual, motorised or with a trip function, these devices ensure the on load making, breaking and safety disconnection of lowvoltage electrical circuits. Load break switches the ha series is a range of multipole load disconnector switches with manual operation. The primary load interrupting mechanism is a threephase airinsulated load break switch mounted in the top compartment of the switchgear module. Both types are compact and incorporate arcextinguishing devices of fujis own design. Other products of switch group switch disconnectors on. The 11 kv22 kv load break switches are manufactured suitable for mounting in sheet steel enclosure. Conversely, noloadbreak bypass switches do not offer the flexibility of the loadbreak bypass switch design. As a lowcost loadswitching device loadbuster disconnect switches, when used with the loadbuster tool, can. The automatic model can be configured as a remotely controlled switch, or as a sectionaliser. Load break switch power control electro systems pvt ltd.
The pcesair type load break switch offers a simple and. Loadbreak connectors visible break and ground eaton. Federal pacific switchgear products 5kv through 38kv. This switch is mechanically interlocked such that the vacuum loadbreak switch or the vacuum fault interrupter mechanism first interrupts the current and then the visiblebreak switch may be operated. Current interruption in air for a mediumvoltage load break switch. This is accomplished by addition of equipment that increases the operating speed of the disconnect switch blade and the addition of some type of equipment to alter the arcing phenomena and allow the safe interruption of the arc. Mersen ul508 disconnect switch, panel mount, 40a, 600vac temporarily unavailable.
The load break switch interrupts current with blades that travel in energycontrolling arc chutes. Load break switch marshal electrical and metal products co. The socomec range of photovoltaic load break switches enables simultaneous on load disconnection of two circuits using a single handle. The switches have maximum loadbreak ratings of 600 amps for 14. Distribution commissioning test sheet load break switchsectionaliser hpc4dl07002014 this commissioning test sheet covers the checking, testing and commissioning of all replacement or new installations of load break switch lbssectionaliser before energisation. Available with our latest solutions for protection, control and monitoring, providing optimum performance and reliability in a lightweight design. The lborii switch is designed for use with distribution transformers pad mounted or submersible and self contained distribution switchgear. Disconnectors, load break switches, earthing switches three and single phase. Vfi underground distribution switchgear cooper industries.
Square ds hvl is the original open air switchgear for visual confirmation of load interruption. Sectos sectos is an sf6insulated, outdoor pole mounted load break switch family for overhead lines and specifically designed for use in modern remote controlled distribution automation systems, working as sectionalizer. The automated gx switch is equipped with all the necessary hardware and software features to operate as a remotely controlled load break switch or sectionaliser, working in conjunction with an upstream recloser. The visiblebreak switch is rated 600 a continuous current and has a making current rating up to 16 ka sym. Easy to assemble and easy to use, they are suitable for. Lbs load break switch from 63 to 3150a suitable for aluminium and copper connection high reliability and performance strong points functional diagram main switchboard distribution panel emergency switching bus tie the solution for isiec 609473 conformity to standards only available for 63a castle k lbs load break switch from. These automatic switches provide the features of traditional load break switches and sectionalisers, plus the bene. Ges breakmaster load interrupter switches provide dependable, economical load switching and protection for medium voltage circuit applications from 2. The type e power fuses have ratings of 200 amps maximum continuous and 12,500 amps rms symmetrical maximum interrupting. The switches have a maximum faultclose rating of 12,500 amps rms symmetrical. Dec 25, 2016 load break switch is generally used in medium voltage industry for switching and protection purpose.
Load break switch sectionaliser with advc controller. Reclosers, sectionalizers and load break switches our mv reclosers use solid dielectric technology, rated up to 38kv and designed for standard or advanced smartgrid applications. Federal pacific switchgear products 5kv through 38kv switchgear. As a precaution, normally the lbs isolator are to be switched on under no load, the connected load to be utilized after switching on the isolator. Abstractthe current interrupting capability of a load break switch lbs depends. Reclosers, sectionalizers and load break switches schneider. Integer style switches have a onepiece steel or insulated base which supports the insulators of all three poles. Load break switches available as manual and remotely operated 3 and 4 pole isolation and load break switches rated from 63 a to 5000 a. Fusible and nonfusible switches are 100% load break and load make rated the continuous load current of fusible switches is not to exceed 80% of the rating of fuses employed in other than motor circuits. Nonfusible switches are 100% fully rated suitable for service entrance applications unless otherwise noted. Traditional load break air switch with power fuse protection for power distribution. Accordingly, the circuit breakers have both while the isolator or lbs has only breaking capacity.
Sf6 insulated load break switch for the use in medium voltage switchboards for secondary distribution networks. In order to reduce the chances of an arc propagating, the europa switch employs rotary contact technology. The visible break switch is rated 600 a continuous current and has a making current rating up to 16 ka sym. Additional breakbeforemake load break contacts in loadbreak bypass design reduce the number of steps and time required to bypass the ats by allowing the bypass switch to be thrown at any time to either source regardless of the position or condition of the ats. It can be applied with power fuses and many other protective devices to provide safe, economical switching and circuit protection where infrequent. The module oea28 allows easy installation of auxiliary contacts on the side of ot switchdisconnectors 1604000 amperes, os switchfuses 321250 amperes and otdc switchdisconnectors from 100 to 1600 amperes. Eaton s cooper power series cleer 600 a loadbreak connector system cuts operating time in half and achieves visible break without requiring removal of 600 a bolted terminations, or moving heavy cables. Technical specification for pole mounted three phase gas.
Types pmh3 and pmh4 continued remove lifting brackets after. Load break switch is generally used in medium voltage industry for switching and protection purpose. Motor type the sgpasmotor type switch is developed to meet the need for easy, simple and safety local operation of load break switch with ld motor control unit. This switch is mechanically interlocked such that the vacuum load break switch or the vacuum fault interrupter mechanism first interrupts the current and then the visible break switch may be operated. Load break switch fln3612d63020 sf 6 load break switch flrn3612dt12531. Load break switches ensto compact ensto compact is a complete line of load break switches. Load break switchsectionaliser with advc controller. The rotary switches are compact in size and with a good design.
Sf6 load breaking switches nps abb brings reliability of operation in all climatic conditions and installations in. As a worldwide electrical switchgear manufacturer we provide a wide range of disconnect switches, modular electrical switches and. As necessary, adjustments should be made to insure operation andor. Versarupter mv indoor switch price and order entry guide english pdf. In application of new concept mechanism of bendable type blade structure ls tri mec air insulited load. Hvl switchgear documents and downloads schneider electric. In simple way the load break switch used to cut off healthy circuits or to break disconnect the load. Nonfusible switches are 100% fully rated 200600 a features kseries design horsepower rated ample wire bending space provides for easier installation. As a worldwide electrical switchgear manufacturer we provide a wide range of disconnect switches, modular electrical switches and remote electrical switches. This enables significant savings, as compared to the use of two separate devices. Switches switchdisconnectors ot and otm english pdf catalogue product selector chapter 19 disconnect switches 012015 large document. Motor type the sgpasmotor type switch is developed to meet the need for easy, simple and safety local operation of loadbreak switch with ld motor control unit. Other products of switch group switch disconnectors onload.
Load break switches are metalenclosed construction and installed within a welded steel enclosure. The first, or input module module 1, consists of an input connector and a feedthrough connector separated by a vacuum circuit breaker, an autojet ii load break switch, fuses, and a feedthrough, programmable, overcurrent and ground monitorcontrol module. Loadbreak switch article about loadbreak switch by the. Schneider electric rl series load break switchsectionaliser w. This system will operate the switch under load within 5ms thereby reducing the arcing time to a minimum. With no load break bypass designs, the automatic transfer switch must be in the same position i. The complete line is based on two frame sizes only. A solution for every need abb portfolio for mv outdoor and. Technical specification for pole mounted three 3 phase gas insulated load break switches page 2 of 14 specification ets060901 ver 7 ergon energy corporation limited abn 50 087 646 062 4. Load breaker switches with and without fuse pdf catalogs.
The schneider electric rlseries pole mounted, gas insulated, load break switch is available in manual and automatic models. Installation and replace bolts door see note 1 on page 5 ground terminal pad. High voltage switches for rated voltages above 1kv and less than 52kv. China manufacturer of auto recloser, indoor and outdoor sf6 load break switch, step voltage regulator, ring main unit, vacuum circuit breaker, sectionalizer, electrical transformer, compact substation, load break switch, distribution transformer. A load break switch is a disconnect switch that has been designed to provide making or breaking of specified currents. Available in din mount or surface mount versions, they enable the making and breaking of a load and safety isolation of any low voltage installation. Load break switches with and without fuse load break switch with fuse. Load break switch power control electro systems private ltd.
Interlocks ensure that the switch and fuse compartment remains closed until the switch is opened. These automatic switches provide the features of traditional load break switches and sectionalisers, plus. Hvl switchgear documents and downloads schneider electric usa. Whether they are manual, motorised or with a trip function, these devices ensure the onload making, breaking and safety disconnection of lowvoltage electrical circuits. This is designed to make and break the circuit through a revolving double break contact assembly that wipes as it moves. This is accomplished by addition of equipment that increases the operating speed of the disconnect switch blade and the addition of some type of equipment to alter the arcing phenomena and allow the safe interruption of the arc resulting when switching load currents. The lborii switch is designed to provide high reliability, strength, and operating. They can be engineered as fused or nonfused and a variety of power fuses are possible.
The first, or input module module 1, consists of an input connector and a feedthrough connector separated by a vacuum circuit breaker, an autojet ii loadbreak switch, fuses, and a feedthrough, programmable, overcurrent and ground monitorcontrol module. The overall width is the same as that of 3 or 4 pole devices. All mounting steelwork for the gx switch, control cabinet and. Other products of switch group switch disconnectors fuse l 34 pole, 32a 800a l side operated, 32a 160a l interior as well as in ss enclosure on load changeovers l conventional side by side, 25a 3150a l compact changeovers, 63a 1800a. The breakmaster switch consists of a 2position open, closed, 3pole, gangoperated, air interrupter switch utilizing a spring. The cooper power systems fourposition sectionalizing loadbreak switch is designed for use in transformer mineral oil, envirotemp fr fluid, or an approved equivelant fluidfilled padmounted transformers or distribution switchgear. The abb type lborii switch is a manually operated, two position, load make or break, oil immersed rotary switch. Load break switches are devices used to open an electrical circuit by isolating the source from the consumer. Ges breakmaster load interrupter switch consists of an air insulated, three pole, gangoperated, quickmake, quickbreak, load interrupter switch in a floor mounted metal enclosure. Differences between disconnectors, load switches, switch. Conversely, no load break bypass switches do not offer the flexibility of the load break bypass switch design. The arc is drawn into a long narrow chamber with close clearances in which the gases are rapidly cooled and dispersed.
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