It integrates the functions of visible light CCD, laser ranging, GPS / Beidou Positioning second generation, electronic compass and data recording. It has the characteristics of low power consumption, small volume, light weight, compact structure, simple operation and portability to complete the detection, aiming, ranging and positioning of targets.
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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.
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High performance multi-functional low light level night vision instrument is an optical and electronic instrument which can observe the external scenery with the help of weak natural light (such as moonlight, starlight or atmospheric glow) when there is no lighting at night. It is a passive night vision instrument with good concealment.
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The turret assembly of situational awareness system carries two photoelectric sensors, thermal imager and TV camera, for image acquisition. It also integrates GPS and electronic compass, which can solve the target and local position. It can ensure the stable scanning of circumferential view through the step-by-step scanning stability platform, realize panoramic imaging, and then communicate with the display and control terminal through the wireless or optical fiber transmission module inside the turret.
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Using the existing image intensifier technology, the antimony cesium photocathode UV image intensifier is successfully developed, with UV transparent quartz glass as the input window and double proximity focusing image intensifier. Solar blind UV imaging detection module is an imaging detection product for solar blind UV band based on UV image intensifier manufacturing technology, combined with optical design technology and electronic signal processing technology. It is mainly composed of solar blind UV coupling module, solar blind UV optical module and signal processing module.
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Suspension tempered glass insulator products are used for insulating and suspending wires in high-voltage and ultra-high-voltage AC and DC transmission lines.Type of insulator acc. RussianstandardUltimateMechanical Strength of insulators, KN, not lessDiameter of glass shed (D), mmSpacing, mmCreepagedistance, mmWeight, kgVoltage withstand, kV, not lessImpulseFrequency50 Hz, wetRadio interference levelU40BSU40BL401751001101851,7703025
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wire galloping has brought immeasurable economic losses and social impacts to our country. The composite interphase spacer is a kind of line that can effectively prevent the galloping of line conductors to keep the line safe, and effectively reduce the space of the transmission corridor. It is listed as a compact high-voltage transmission line 2220kV and below in the guidelines for galloping prevention and control of the State Grid Corporation of China.
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High temperature control precision and high resolution; High emissivity; Short temperature stabilization time; Low price; Easy to use or integrate.
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CMOS hand-held night vision instrument is a portable photoelectric night vision instrument, which can observe the target under all-weather conditions.
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summaryAs a special accessory of the arrester, the disconnector is used in series with the arrester. The purpose is to use power frequency short circuit current to make the disconnector act when the arrester is abnormal and fails, so that the grounding terminal of the disconnector can be automatically disconnected, and the arrester can be withdrawn from operation to prevent further expansion of the accident.
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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.
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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.
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The lightning arrester is connected between the cable and the earth, usually in parallel with the protected equipment. The lightning arrester can effectively protect communication equipment. Once abnormal voltage occurs, the lightning arrester will act to protect. When the communication cable or equipment is operating under normal working voltage, the arrester will not work and will be regarded as open circuit to the ground.
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Distribution ArresterProduct use conditions:a) Suitable for indoor and outdoor use;b) Ambient temperature -40°C~+40°C;c) The altitude does not exceed 3000m (the porcelain sleeve type does not exceed 1000m);d) The power frequency is not less than 48Hz and not more than 62 Hz;e) The long-term power frequency voltage applied between the arrester terminals does not exceed the continuous operating voltage of the arrester;f) Areas with an earthquake intensity of 8 degrees or below;g) The maximum wind speed shall not exceed 35m/s. Product Model Description:According to JB/T 8459-1996 "Surge
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(H) GW13 type neutral point disconnector is used for three-phase AC 50Hz outdoor high-voltage electrical equipment, which is used for opening and closing the neutral point connection of transformer without load. When the knife switch is in the normal opening position, an insulation distance meeting the safety requirements can be provided.□ Structure1. Single pole V-shaped double post rotary structure, with small floor area, mainly consists of base, post insulator, conductive circuit, operating mechanism, etc.2.
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The main component of the metal oxide arrester's nonlinear resistance valve is zinc oxide, which has excellent nonlinear characteristics. Under normal operating voltage, the resistance value is very high, which is actually equivalent to an insulator. Under over-voltage, the resistance of the resistor is very small, and the residual voltage is very low. However, under normal operating voltage, the valve plate will deteriorate due to long-term power frequency voltage, which will cause changes in resistance characteristics and increase the leakage current flowing through the valve plate.
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It is mainly used for non-contact monitoring of dangerous gas leakage at industrial site. It can also be used for coal mine monitoring, high-voltage power transmission and transformation detection, subway safety monitoring, environmental protection and fire rescue.Types of industrial hazardous gases that can be monitored:Hydrogen sulfide, ammonia, propane, sulfur dioxide, methanol, ethylene, methane, sulfur hexafluoride, dichloromethane, ether.
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Composite insulators are composed of three parts: insulating core rod, silicone rod rubber sheath and connecting fittings at both ends. Insulating mandrel is the abbreviation of epoxy resin fiberglass lead rod, it is the skeleton of composite insulator, it plays multiple functions such as supporting umbrella cover, inner insulation, connecting hardware at both ends, and bearing mechanical load, etc.
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Composite sheathed metal zinc oxide arresterThe core working element of the product is made of multi-element metal oxide powder mainly composed of zinc oxide, which has excellent nonlinear volt ampere characteristics, fast steep wave response and large flow capacity. Products with gap adopt self blowing gap and pressure equalizing radiation structure, which reduces the dispersion of discharge and has small impact coefficient.The adoption of composite insulating jacket conforms to the development trend of miniaturization, security and maintenance free of international electric power products.
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SpecificationsRated voltage kVCustomized mechanical tensile load KNconnection markStructure height H (mm)Minimum arc distance h (mm)Minimum nominal creepage distance h (mm)Lightning full-wave impulse withstand voltage (peak kV not less thanThe operating impulse withstand voltage (peak value) kV is not less thanPower frequency wet withstand voltage 1minkv (effective value) kV is not less thanFXBW4-10/40104011W340±1519040095-60FXBW4-10/70107016W360±1519049095-60FXBW4-10/1001010016W400±1519049095-60FXBW4-20/40204016W450±15280600170-75FXBW4-20/70207016W470±15280750170-75FXBW4-20/1002010016W500±152
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Hand held low light level observation mirror is a portable photoelectric observation mirror. The instrument is used to observe targets at night and under low illumination conditions.
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The day and night gun sight can realize all-weather close-range accurate shooting in the daytime, night and low illumination environment, and can solve the rapid aiming and accurate shooting at night from 25m to 100m.and can solve the rapid aiming and accurate shooting at night from 25m to 100m.night and low illumination environment, The day and night gun sight can realize all-weather close-range accurate shooting in the daytime,
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