GN38-12KV series indoor disconnectors are designed and manufactured to meet the needs of compact and miniaturized development of fixed high-voltage cabinets and ring network cabinets. It has a three position structure, fully insulated bottom plate, and is equipped with coaxial locking and perfect mechanical interlocking mechanism, which is compact in shape.
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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).
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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.
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(H) GW4 type outdoor high-voltage disconnector is used for three-phase AC 50Hz outdoor high-voltage electrical equipment, which is used for opening and closing of lines under the condition of voltage and no load, and for electrical isolation of electrical equipment such as overhauled high-voltage buses and circuit breakers from live high-voltage lines. It can also be used for opening and closing small capacitive or inductive currents. When the knife switch is in the normal opening position, an insulation distance meeting the safety requirements can be provided.
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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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The low light level sight integrates the functions of observing and aiming, measuring the target distance and setting the weapon firing angle. It has the characteristics of small volume, light weight, high aiming accuracy, good reliability and convenient carrying. It can be used not only as a night sight, but also as an observation command mirror for night observation. It is mainly used for observation and monitoring by personnel of border armed police, public security and other units, and it is a precision optical instrument product for assisting gun aiming and shooting at night.
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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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1) It is used to protect electrical equipment from high transient over-voltage and limit the freewheeling time and the freewheeling amplitude.
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Long focal length: it can provide higher spatial frequency for the system to be tested; Large aperture: provide testing possibility for multi-channel optical system; The target plate and blackbody have high infrared emissivity; The system is equipped with vibration isolation air cushion platform; Electrically controlled target wheel is easy to operate and replace; It can meet the test of large aperture thermal imaging system; It can realize the semi-automatic test of all the main parameters of the thermal imager system; High performance test software system.The parameters of the thermal imager
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This unit has been specifically designed to meet the needs of contractors where the necessiiy or the ability to have a Cable Drum Trailer is simply not practical.Available with either a fixed spindle (shown), i.e. drum loaded by external means, or supplied self sufficient in lifting and lowering as used on standard Cable Drum Trailers in our range.The unit comes with a range of options to suit most applications for both the Utility and Rail industries.Diesel, Petrol, Electric or PTO Drum Drive system for ease of cable payout, unit can be pendant controlled.
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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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Low-voltage cable lines are widely used in low-voltage power distribution systems because of their reliable operation, lack of poles, lack of ground occupation, lack of unsightliness, and less influence from the outside world.ApplicationFixed indoor, outdoor and underground installations.StandardsHD 603-5D SI, IEC 60502-1,IEC 60332-1 Cat. B.
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FN12-12 and FN12-12R combined apparatus are three-phase high-voltage switchgear with a rated voltage of 12KV and a rated frequency of 50Hz. They are used for breaking and closing load current, closed-loop current, no-load transformer and cable charging current, closing short circuit current, and load switches equipped with grounding switches.
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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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1. After opening, establish a reliable insulation gap to separate the equipment or lines to be repaired from the power supply with an obvious disconnection point to ensure the safety of maintenance personnel and equipment [2].2. Change the circuit according to the operation needs.3. It can be used to open and close the small current in the line, such as the charging current of bushing, bus, connector and short cable, the capacitive current of switch voltage equalizing capacitor, the circulating current during double bus switching and the excitation current of voltage transformer.4.
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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.
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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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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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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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The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, which can be used as a fixed installation unit or equipped with a special propulsion mechanism to form a handcart unit.Model and meaning This type of product is equipped with a bistable permanent magnet operating mechanism. The mechanism is equipped with a permanent magnet. The permanent magnet provides the holding force to keep the switch in the closed and open state.
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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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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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