1. The altitude shall not exceed 1000m.2. The ambient temperature shall not be higher than+40 ℃ and not lower than - 10 ℃.3. The daily average relative humidity is not more than 95%, and the monthly average is not more than 90%.4. The seismic intensity shall not exceed 8 degrees.5. The installation site shall be free of gas, steam, chemical precipitation, smoke, dust, dirt and explosive corrosive substances that seriously affect the insulation and conductivity of the grounding switch.6.
Contact Now
The coupling between the glass lead rod and the fixture adopts the most advanced crimping technology, with beautiful appearance, small volume, light weight, not easy to break, bending, high torsional strength, strong explosion-proof, and extremely convenient transportation and installation.Type ofinsulator acc.RussianstandardUltimateMechanicalStrength ofinsulators,KN, not lessDiameterof glassshed (D),mmSpacing,mmCreepagedistance,mmWeight, kgVoltage withstand, kV, not lessImpulseFrequency50 Hz, wetRadiointerference levelSHS-10D12,51301602801,35754040SHS-20G131401904001,71355050
Contact Now
use environment a. The altitude does not exceed 1000 meters; b. The surrounding air environment has no conductive dust and no corrosive, flammable and explosive gases, etc.; c. Wind pressure does not exceed 100Pa (equivalent to wind speed 34m/S); d. The earthquake intensity does not exceed magnitude 8; e. The annual temperature difference ratio is within ±40°C.
Contact Now
The circuit breaker has the characteristics of small size, light weight, anti-condensation, maintenance-free, etc., and can adapt to harsh weather conditions and dirty environments.
Contact Now
The overall structure of this product adopts a three-phase common box type, the bushing enters and exits the line, the box is filled with dry air, and the electric spring fan operating mechanism is arranged on the side of the box, which can be used reliably under severe environmental conditions. The vacuum interrupter of this product adopts ceramic shell, cup-shaped longitudinal magnetic field contact structure, copper chromium contact material, and has excellent breaking and closing short-circuit current capacity. The product is small in size, light in
Contact Now
normal use conditionsAmbient air temperature: upper limit +40°C lower limit -25°CAltitude below 2000mRelative humidity: the daily average value is not greater than 95%, the monthly average value is not greater than 90%The surrounding air should be free from obvious pollution such as corrosive or flammable gas, water vapor, etc. No frequent violent vibration
Contact Now
The main function Vacuum arc extinguishing is adopted, with strong breaking capacity, long electrical life and mechanical life of 10,000 times; Simple structure, maintenance-free, no long maintenance period; Good insulation performance, strong anti-pollution ability; Equipped with spring or electromagnetic operating mechanism, the mechanical performance is reliable and can be operated frequently; No fire and explosion hazards; built-in current transformer, the accuracy reaches 0.2 level, and can real
Contact Now
HJDW6 outdoor low-voltage knife switch is a single-phase AC 50HZ low-voltage switchgear, which is used in the power system with rated voltage of 0.5KV to connect or isolate the power supply when there is voltage and no load. The knife switch is operated with insulated hook bar The knife switch is a single-phase structure, and each phase is composed of a word mounting plate, a pillar insulator, a knife switch, a contact, etc. The upper end of the knife switch is provided with a fixed pull ring for opening and closing the insulating hook bar□ Operating environmenta.
Contact Now
Glass Pin Insulator is extremely convenient for transportation and installation; it adopts non-breakthrough type design, no need to measure zero value during operation; reliable structure, no damage to the core bar, and can give full play to its mechanical strength.
Contact Now
The discharge counter for lightning arrester is a high-voltage electrical apparatus used to monitor the discharge action of lightning arrester. Its structure consists of nonlinear resistance, electromagnetic counter and some electronic components. Under normal operating voltage, the leakage current flowing through the counter is very small, and the counter does not act.
Contact Now
Drop type (drop type, detachable type) lightning arrester is a distribution type zinc oxide lightning arrester that is modified and skillfully installed on the drop type mechanism of the drop type fuse, so that the lightning arrester can be easily detected, repaired and replaced with the help of an insulating switch lever under the condition of continuous power supply, which not only ensures the smoothness of the line, but also greatly reduces the work intensity and time of power maintenance personnel, It is especially suitable for places that are not suitable for power failure, such as post a
Contact Now
□ Technical standards The standard for product production is GB11032-2000 (eqvIE60099-4.1991) "AC gapless metal oxide arrester", JB/8952-20045 "composite metallization arrester for AC system with no gap in the jacket"□ Product model description □ Conditions of useYH |---- Composite jacket metal oxide arrester (HY is the old model) | Y is metal oxide surge arrester with porcelain jacket5 |---- Nominal discharge current KaW |---- Structural features W: No gap C: Series gap R: Parallel gapS |---- place of use S: Power distribution Z: Power
Contact Now
Features of arrester with series gap □ Product model description1. Under normal conditions, the series gap of the arrester isolates the arrester from the system, and the arrester does not participate in the operation, thus prolonging its service life;2. For the system with frequent voltage fluctuation, the gap can be broken down to make the arrester work only when the voltage exceeds the specified value, avoiding the frequent action of the gapless arrester;3.
Contact Now
Reference standardsGB11032-2000 AC gapless metal oxide arresterJB/T8952-2005 Metal Oxide Surge Arrester with Composite Jacket for AC SystemJB/T10497-2005 Metal Oxide Surge Arresters with Series Gap and Composite Jacket for AC Transmission LinesGB311.11-1997 Insulation Coordination of High Voltage Transmission and Transformation EquipmentJB/T8459-2006 Preparation Method of Arrester Product Model□ Structural characteristics1.
Contact Now
1. Reasonable design, novel structure, reliable technical performance, compact shape, light weight, flexible installation, high tensile strength, collision resistance, and no damage during transportation;2. The advantages of silicon rubber sheathed metal oxide arrester are cited.
Contact Now
Three phase combined zinc oxide arrester with composite sheath is a new type of protective appliance used to protect the insulation of power equipment from over-voltage hazards. It effectively limits the over-voltage between phases while limiting the over-voltage between phases and ground. It is widely used to protect vacuum switches, rotating motors, parallel compensation capacitors, power plants, substations, etc. This kind of combined arrester has been used for more than ten years, and the practice has proved that it is a practical and effective measure to limit the interphase overvoltage.
Contact Now
Y. F series porcelain clad arrestersummaryThe arrester is the basis for insulation coordination of various electrical equipment (transformer, reactor, capacitor, engine, motor, PT, CT, circuit breaker, contactor, etc.) in the power system.
Contact Now
Our 110kV and 220kV composite jacket line arresters have passed the type test of the National Insulator Arrester Testing Center and have performed well.Our company has adopted a unique design of core rod through ring resistor, directly crimping end fittings and reliable sealing process to make it have the tensile strength of suspension composite insulator. (Patent No.: 2007200155561.4).
Contact Now
Metal Oxide ResistorsThe metal oxide resistor is the core part of the lightning arrester. It uses zinc oxide as the main component, adding a small amount of bismuth oxide, cobalt oxide, chromium oxide, manganese carbonate, antimony oxide and other trace additives, and is sintered at high temperature. The microstructure of metal oxide resistors is mainly composed of zinc oxide grains, grain boundary layer and spinel phase.
Contact Now
1) It is used to protect electrical equipment from high transient over-voltage and limit the freewheeling time and the freewheeling amplitude.
Contact Now
Vehicles and ships are only essential equipment in urban anti-terrorism, public security crime collection and border and coastal defense patrols. Equipped with on-board infrared thermal imager is to equip vehicles with special eyes to break the dark cover and uncover various camouflages.The on-board infrared thermal imager adopts modular and standardized design, which can be quickly and easily installed on various vehicles equipped at present.
Contact Now