Operating conditions 1.The ambient air temperatures is no higherthan +40℃,no lower than -40℃; 2.The altitudeabove sea level dose not exceed 1000-2000m(the plateau aresshould be indicated whenordering); 3.ACsysten frequencyis 50Hz or 60Hz; 4.The power frequency voltage applied to thearrester for a longtimedoes not exceed the continuousworkingvoltage ofthe arrester; 5.Maximum windspeed does not exceed 35m/s; 6.The earthquake intensitydoes not exceed 7 degrees; 7.Thefilthyarea should be given clear indication.

The zine oxide arester is the most advanced over-voltage protector in the world;Due to make the risistor disc of core componetmainly adopt zine oxide aresterCompared with the conventional silcon carbide arrester,this presciption of theproduct improvesgr-eatly the volt-Ampere characterisics of the resistor disc andincreased through-current capability at overvoltage so as to dring arad-icalchanges for the characteristics of the arresters.

The zine oxide arrester is the most advancedover-voltage protector in the world;Dueto make the risistor disc of core componetmainly adopt zine oxide arrester.Compared with the conventional silicon carbide arrester,thispresciption of theproduct improvesgr-eatly the volt-Ampere characterisics of the resistordisc andincreased through-current capabiity at over-voltage so as to dring arad-icalchangesfor the characteristics of thearresters

Outdoor drop type fusesare suitable for 35kV and below voltage andfrequency 50Hz power systems,used for overloadand shortcircuit protection of transmission lines and power transformers,and for breaking and closing rated load current.
The drop type fuse consists of an insulation bracket and a fusetube,with static contacts installed at both ends of theinsulationbracket and dynamic contactsinstalledat both ends of the fuse tube.Thefuse tube consists of an inner arc extinguishingtube andan outer phenolic paper tube orepoxy glass cloth tube.

Polymer insulator shed made of silicon rubber for grantee the outside insulation;high strength expoxy poles provide insideinsulation for productsand sustain machine load.These products use new technology,which press connect of mold,mandril andmetal terminal which.improved the products,reliability,the charaters as follows:
Superior electrical function and strength soiling,small olumn,light weight,excellent impulse resistence,shockresistence,and
explode resistance.

Rated voltage:HV equipment 7.2KV and 12KV,LV equipment 0.4 KV.Rated current:HV equipment 630A,LV equipment 100-2000A.Aplication:YBM22 seriessubstation is a kind of compactpower distribution device that integrates high and low voltageelectrical equipment.It can be used in high-risebuildings,buildings in urban and rural areas,residential communities,high-techdevelopment areas,small and medium size factories,miningareas,oilfields,temporary features sites,and other premises.It alsocan beused for acceptance and distribution of power in power distribution system of 6-15KV,50HZ(60HZ),ring main powerdistribution system and double power supply or radiate terminal power distribution system.

Rated voltage:HV equipment 7.2KV and 12KV,LV equipment 0.4 KV.Rated current:HV equipment 630A,LV equipment 100-2000A.Application:YBM22 series substation is a kind of compact power distribution devicethatintegrates high and low voltageelectrical equipment.It can be used in high-rise buildings,buildings in urbanand rural areas,residential communities,high-techdevelopment areas,small and medium size factories,mining areas,oil fields,temporary features sites,and other premises.It alsocan beused for acceptance and distribution of powerin power distribution system of 6-15KV,50HZ(60HZ),ring main powerdistribution system and double power supply or radiate terminal power distribution system.

Rating
Rated voltage :HVequipment10KV and 12K,LV equipment 0.4 KVRated current HV equipment 630A,LVequipment 1500A.

KWN61-40.5 Air insulated metal dadmowable switchgear is an indoor switdhgear,assembly operating under theconditions of50/60Hz three phaseand rated 40.5kV AC voltage,which is applied to the transmission anddistribution for gene ators.transformer substations and the industy and mine enterprises It also can be used to control,protect and monitor electicdircuits,and very usefulfor fiequent operating condition
Standard IEC62271-200

KYN28A-12 indoor metal clad movable switchgear is a complete power distribution device for 3.6kV~12KV,3 phase AC 50/60Hz,single bus sectionalized system.It is mainly used for power transmissionof middle/smallgenerators in power plants,powerreceiving,transmission for substations in power distribution and power system of factories,mines and enterprises etc.so as tocontrol,protectand monitor the system.
Standard.IEC62271-200

Rating
Rated voltage 12/24KV,rated current reachto 630A.
Application:
mainly applicable in urban power grid features and renovation project,industrialand mining enterprises,high-rise buildings andcommunal facilities.For power distribution,controlling and protection on electric equipment as the looppower supply unit orterminal equipment.It also can be installed in pre-loaded substation