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 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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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
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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 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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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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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
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Product OverviewGW1-12G (D) series outdoor high-voltage disconnectors are unipolar high-voltage switchgear. They are used to open and close the circuit when there is voltage or no load in the outdoor 12KV line network. The switches with grounding knives are equipped with CS mouth type manual mechanisms to prevent the misoperation of live grounding wires and grounding wires, "closing", etc.
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Very popular MW cooled detector in the world market. Can work with C308, C330 or C363 stirling cooler.
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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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A range of Trailer mounted Cable Pulling Winches required for the installation of Power Cables where high
pulling tensions are required.
All of the units are designed with the operator in mind. Simple in operation and robustly engineered, these units
are fitted with heavy duty diesel engines powering hydraulic transmission for smooth controlled pulling, and are
fitted with a console mounted line tension indicator so that at all times the operator has a visual display of the
pulling force applied.
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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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•Note:1,(DEBI Equivalent background illumination, measured after up to 2 minutes stabilization in the dark with the operational voltage applied.2,Signal to noise ratio : measured in the circle(diameter:0.2), equivalent system frequency.3,On the area of 1mm² .illumination flux 0.05lm,lasting 60 seconds .4,Measured for 0.3ms both parallel and perpendicular to the axis separately with power supply applied, totally for 6 times.
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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.
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Conductive partThe fixed contact is composed of a copper plate bent into a right angle, and the perforated end of the fixed contact can be connected with the bus through a screw; The other end is short, and it contacts the moving blade (moving contact) when closing.Two copper plates form a contact strip, also known as a moving contact, which can rotate around the shaft for a certain angle. When closing, it holds the static contact. There is a clamping spring between the two copper plates to adjust the contact pressure between the dynamic and static contacts.
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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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Most advanced stirling cooler in the world. Very powerful cooling ability.
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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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