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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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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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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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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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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The general low light level gun sight is a sight with high definition, good combination of gun and mirror, strong adaptability, reliability and durability, stable performance, good man-machine efficiency and low cost. It is suitable for short-range accurate shooting at night and can solve the rapid aiming and accurate shooting at 25-100 meters at night. The fixture can be quickly changed to adapt to various gun types.
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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
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CMOS gun sight has the characteristics of all-weather operation, no night lighting, strong concealment, high reliability, long service life and low power consumption. It is suitable for observation and aiming in day and night, night or low illumination environment. high reliability, long service life and low power consumption.
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Due to electromagnetic induction, the metal shielding layer (or metal sheath) of long line high-voltage single core power cables generates induced voltage, which leads to aging of insulation and reduction of insulation grade, resulting in reduced cable life. Once the induced voltage exceeds the sheath breakdown voltage, the outer sheath is broken down, forming a multi-point grounding fault of single core cables.
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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
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Itc-3c adopts the modular design idea. The three optical axes of thermal imager, laser ranging system and CCD camera system are parallel to each other. It can output two analog video signals in the infrared and visible bands of the target and background (the two bands are independent of each other). If necessary, it can range the target according to the overall instruction.
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It can diagnose the fault of the thermal imager through the communication port of the thermal imaging system, locate the fault group components conveniently and quickly according to the built-in fault expert database, and greatly improve the maintenance efficiency of the fault thermal imager;Through the self-developed comprehensive performance test algorithm of thermal imager, it is convenient and accurate to test the performance parameters of thermal imager: minimum resolvable temperature difference (MRTD), minimum detectable temperature difference (mdtd), field of view (FOV), zero travel mom
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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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The JN2-40.5 indoor high-voltage grounding switch is an indoor high-voltage electrical appliance designed in accordance with the relevant grounding switches in GB1985-89 AC High Voltage Disconnectors and Grounding Switches, which is equivalent to IEC129-84 Disconnectors and Grounding Switches and IEC694-84 Common Terms for High Voltage Switchgear and Control Equipment.JN2-40.5 grounding switch is applicable to 35KV and below three-phase AC 50HZ power system, and has voltage monitoring device.
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Designed and supplied specifically for "Off Road Use", these Site trailers are all fitted with some form of brake system, hand parking facility and basic vehicle lights. Although not built to conform with EEC braking/lighting directives certain Non EEC countries have operated these units on the highway under the proviso that Towing speeds indicated must not be exceeded at full rated payload.
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It is mainly used to break and close the load current, overload current and short-circuit current of the power system. It is suitable for protection and control of substations, industrial and mining enterprises, and urban and rural distribution networks, especially for places with frequent operations and urban automatic distribution networks. This product is matched with the controller, which can meet the requirements of the distribution automation system, and can reliably and effectively complete the traditional recloser function.
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ZFN21-12D/630-20, ZFN21-12DR/T125-31.5 high-voltage vacuum load switch and combination apparatus are used in three-phase AC 10KV, 50Hz power distribution system. It has the advantages of compact structure, small volume, light weight, long service life, strong making and breaking capacity, safety and reliability, etc.
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The single tube monocular helmet night vision lens has the characteristics of clear imaging, good concealment, light structure and low power consumption. It can be held or installed on the head cap. The product is suitable for patrol, driving, medical aid, observation, monitoring and reading at night or in low illumination environment.
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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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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.
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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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