Table of Contents
Main technical data assigned by the manufacturer:
| Rated voltage | 24kV |
| Rated frequency | 50Hz |
| Rated current | 630A |
| Rated short-time withstand current | 16kA |
| Rated peak withstand current | 40kA |
| Rated duration of short-circuit | 1s |
| Rated closed-loop switching current | 630A |
| Rated short-circuit making current | 40kA |
| Rated mainly active load breaking currents | 630A |
| Electrical endurance class | E3 |
| Rated lightning impulse withstand voltage | 125kV |
| Rated short-duration power-frequency withstand voltage | 50kV |
| Rated power-frequency withstand voltage(across the open switching device) | 60kV |
| Rated lightning impulse withstand voltage(across the open switching device) | 145 Kv |
Summary
- With the in-depth advancement of international power grid construction and the rapid develop
ment of requirements for the power industry and global environmental protection, users have incr
easingly higher demands for power supply quality and reliability. This requires power department
s to provide safe, economical, reliable, environmentally friendly, and high-quality electric energy.
Currently, the outdoor LBS load break switch used internationally are SF6 switches.
Our company’s ZYSL-630A pole-mounted solid-sealed pole vacuum intelligent load break switch
is des igned to improve the shortcomings of SF6 switches. It uses a vacuum interrupter to enhance
switc hing capability, with an arc duration of less than 10ms. The pole-mounted solid-sealed pole vacuu m intelligent load break switch is an environmentally friendly product, featuring a compact design, light weight, no greenhouse gases, and no explosion hazard.
The ZYSL-630A pole-mounted solid-sealed pole vacuum intelligent load break switch is suitable for br eaking and closing load currents and overload currents in power systems of distribution networks with a rated voltage of 12/24/40.5kV, a rated current of 630A, and a frequency of 50/
60Hz. It can automatically isolate the faulty section of the distribution line.Equipped with an electronic control ler featuring the latest technology, the switch supports manual operation, electric operation, and re mote operation. The electronic controller is installed in a stainless steel cabinet,enabling it to be u sed under various climatic conditions. In addition, wired and wireless modems can also be installe d in the cabinet, allowing for remote monitoring and control. The simple pole-mounted installatio n configuration is convenient and efficient, which helps reduce construction costs. - Normalserviceconditions
2.1Ambienttemperature
2.1.1Surroundingairtemperature:Max:+70℃, Min: -40℃.
2.1.2Relativehumidity:110%
2..2Thealtitudedoesnotexceed2000m.
2.3Thewindpressuredoesnotexceed700pa(equivalenttowindspeedof34m/s).
2.4Intensity:8degrees.
2.5Installationplace:nofire,explosionrisk,nochemicalcorrosionandfrequentviolentvibration.
2.6Pollutionlevel:Classⅲ,classⅳ. - Feature
3.1VacuumArcInsulation
3.2Visibleopen/closedstate
3.3Thecolor-codedmaincontactpositionindicator(green-open;red-closed isclearlyvisiblefrom
theground.The indicatorisdirectlyconnectedtothemaincontactdriveshaftassemblytoensure
accuratedisplayofcontactstatus.
Operatingconditionsofsolidpolecolumntypevacuumintelligentload break switchonthiscolumn:
3.4Quick-Operating
3.4.1 Theoperatingmechanismusingspringenergystorageensuresfastclosingandopeningoperation (nolessthan5000ms).
3.5Localorremotecontrolcanbeimplemented.
3.5.1Itisequippedwithanelectroniccontroller,whichcanbeoperatedlocallyorthroughtheFTU/ RTU interfacetorealizethemainconsoleoperation.
3.6Durableswitches
3.6.1Theswitchismadeofprovendurable,corrosionresistantmaterials
(ship-dedicated304Lstainlesssteelsteelplate)to ensurealongservicelife(30years),andcan performaseriesofoperations,withtheidealcharacteristicsofcolumn-top equipment.
