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Non encapsulated transformer

  The SG(B)series dry-type transformer adopts the NOMEX insulation system material from DuPont in the United States,with a temperature resistance level of H and higher fire resistance performance.The product has strong resistance to thermal shock,high overload capacity,flame retardancy,high fire resistance,and insensitivity to humidity and dust,which makes it widely adaptable and suitable for use in harsh environments with high fire protection requirements,large load fluctuations,and dirty and humid conditions  Product features:  1.Adopting NOMEX paper insulation system,it is flame retardant,explosion-proof,non polluting,and has a high fire rating.  2.Good heat dissipation effect,strong overload capacity,and can operate stably for a long time under 120%load.  3.Good insulation performance,high lightning resistance,and strong ability to withstand sudden short circuits.  4.Able to operate normally under harsh conditions(including climate and geographical environment).  5.After the end of its service life,it can be decomposed and recycled without polluting the environment  Technical standards:  a.GB/T10228-2008"Technical Parameters and Requirements for Dry type Power Transformers"  b.GB6450-1986"Dry type Power Transformers"  c.IEC 726"Dry type Power Transformers"(International Electrotechnical Commission standard)  d.GB1094.1-1996"Power Transformers"Part 1 General Provisions  e.GB1094 3-2003"Insulation level and insulation test of power transformers-Air gap for external insulation"  f.JB/T10088-1999"Sound Level of 6-220kV Transformer"  g.Guidelines for Load of Dry type Power Transformers(GB/T17211-1998)  h.GB4208-1993"Degrees of Protection for Enclosures(IP Code)"

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Electric furnace transformer

  The electric furnace transformer is a transformer that supplies power to the electric furnace,reducing the higher voltage to the working voltage required by the electric furnace.  There are many types of electric furnaces,so there are also many types of electric furnace transformers that are compatible with them.At present,our company produces electric furnace transformers,including arc furnace transformers for steelmaking electric furnaces(including on load and no-load voltage regulation and internal reactor type);All low loss and energy-saving products are used for smelting various ferroalloys,silicon compounds,calcium carbide and other mineral heat furnace transformers(single-phase,three-phase on load and no-load voltage regulation).The cooling methods include self cooling,strong oil water cooling,etc.Special designs can be made according to customer requirements.  Structural features:  The iron core of the electric furnace transformer is made of high-quality oriented silicon steel sheets,processed by fully automatic cutting lines,and manufactured using 45 degree fully inclined seams,non punched,and non woven glass adhesive tape binding technology.The coil adopts an international main longitudinal insulation structure,and the structure and insulation of the winding are reasonably selected to ensure that the winding has sufficient mechanical strength.It has the characteristics of strong ability to withstand short circuits,strong overload capacity,high efficiency,low loss,safety,and reliability.

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12 pulse dry-type transformer

  The purpose of pulse transformer  Pulse transformer is a special type of transformer mainly used for protection devices in power systems and catalyst triggering circuits in power equipment.  In the power system,the main function of transformers is to transmit electrical energy from one level of power lines to another.Pulse transformers are used to generate specific pulse signals to protect against faults in the power system.In protective devices,pulse transformers can generate specific pulse signals to control the operation of protective relays.Meanwhile,pulse transformers can also be used to detect grounding faults in power systems,ensuring the safe and stable operation of the power system.  In power equipment,pulse transformers are mainly used to control the switching of catalyst triggering circuits.Catalyst triggering circuit refers to the use of high-voltage pulses generated by gas discharge to trigger the discharge tube for conduction.Pulse transformers are used to generate high-voltage pulse signals required for triggering circuits,ensuring the normal operation of power equipment.  Working principle of pulse transformer  Pulse transformers can generate high voltage,short duration pulse signals,and their working principle is based on the characteristics of self inductance and mutual inductance.When a sudden pulse current passes through one side of the transformer,a brief high voltage signal is generated.This signal varies with the number and proportion of windings in the transformer.  When the pulse signal generated by one side of the transformer reaches the other side of the transformer,it will be converted into a pulse voltage signal.The amplitude,width,and rise and fall time of this pulse voltage signal are all related to the number and proportion of windings in the transformer.  In short,a pulse transformer is a special type of transformer that can generate high voltage,short duration pulse signals.It is mainly used for protection devices in power systems and catalyst triggering circuits in power equipment.Due to its efficient and reliable characteristics,pulse transformers are becoming increasingly widely used in the field of power.  Pulse transformer is a specially designed transformer mainly used for processing and generating pulse signals.Its function is as follows:  Generate specific pulse signals to perform specific functions.For example,in the power system,it is used to generate pulse signals for controlling and protecting relays in protective devices,or to detect ground faults to ensure the safe and stable operation of the power system.  Control the switch of the catalyst triggering circuit.In power equipment,pulse transformers are used to generate high-voltage pulse signals required for triggering circuits,ensuring the normal operation of power equipment.  Used in the fields of radar and exchange technology.In these applications,pulse transformers are used for signal transmission,voltage conversion,impedance matching,DC isolation,polarity conversion,etc.  Energy storage.When there is no output in the primary input current,the magnetic core converts the input current into magnetic storage,and when the input current is cut off,it releases the induced current output on the winding.  Voltage conversion and isolation.For example,in the high-voltage package of a cathode ray tube television,a significant increase in voltage is achieved through primary isolation.  In addition,pulse transformers are widely used in high-power pulse technology and accelerator research,playing a role in impedance matching and power regulation.

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SF6 Switchgear

  Product features:  *Cabinet structure:The ring main unit cabinet is made of 2mm corrugated aluminum zinc plate and riveted.There are two pressure release points on the back panel of the cabinet,one for the cable room and the other for the load switch/busbar room.This structure can maximize personal safety and ensure the reliability of equipment operation.  *Each compartment:The busbar compartment is located at the top of the cabinet and connected to adjacent switchgear;Mechanism chamber and coupling:The chamber includes the operating mechanism and mechanism coupling,as well as position indication,auxiliary contacts,trip coils,live displays,and couplings;Low voltage box:The low voltage box is located at the top of the cabinet and is optional;Circuit breaker room:A circuit breaker can be placed below the load switch.  *Pressure release:The pressure release above is used to release the gas pressure generated during internal electrical accidents in the busbar and load switch room;The following pressure release is used to release the gas pressure generated during isolated accidents inside the cable compartment.  Usage conditions:  *The altitude shall not exceed 1000m.  *The ambient temperature ranges from-25℃to+40℃.  *Relative humidity:The daily average is not greater than 95%,and the monthly average is not greater than 90%.  *Seismic resistance:8 degrees.  *No severe vibration and impact,as well as fire,chemical corrosion,explosion hazards in the field

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High voltage switchgear

  Product Introduction  The switchgear should meet the relevant requirements of GB3906-1991"3-35 kV AC Metal Enclosed Switchgear"standard,consisting of two main parts:the cabinet body and the circuit breaker,with functions such as overhead incoming and outgoing lines,cable incoming and outgoing lines,and busbar connection.The cabinet consists of a shell,electrical components(including insulation),various mechanisms,and secondary terminals  Composed of sub and connecting lines,etc  Common classification methods include:12  *According to the main wiring form of the switchgear.Bridge connection switchgear,single busbar switchgear,double busbar switchgear,single busbar segmented switchgear,double busbar with bypass busbar switchgear,single busbar segmented with bypass busbar switchgear.  *According to the installation method of the circuit breaker.Fixed switchgear and movable(handcart)switchgear.  *According to the cabinet structure.Metal enclosed interval switchgear,metal enclosed armored switchgear,metal enclosed box type fixed switchgear.  *According to the installation position of the circuit breaker handcart.Floor standing switchgear and mid mounted switchgear.  *According to the different insulation media inside the switchgear.Air insulated switchgear and SF6 gas insulated switchgear.  Construction and installation  1)The installation of complete cabinets should meet the following requirements:  (1)Mechanical and electrical locking should operate accurately and reliably.  (2)The centerline of the moving contact and the stationary contact should be consistent,and the contacts should be in close contact.  (3)The switching contacts of the secondary circuit auxiliary switch should act accurately and have reliable contact.  (4)The lighting inside the cabinet is complete.

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Low voltage switchgear

  Product application areas  Low voltage switchgear is suitable for industries such as power plants,petroleum,chemical,metallurgical,textile,and high-rise buildings,and is used for power transmission,distribution,and energy conversion.The product complies with the GB7251.1-2013"Low Voltage Switchgear"(IDT IEC60439-1 1999)standard.Low voltage switchgear is a product included in the mandatory 3C certification product catalog.  Customized Series  1.GCS type low-voltage withdrawable switchgear  2.GCS type low-voltage switchgear  3.GCK withdrawable switchgear  4.GGD low-voltage fixed switchgear  5.Assembled low-voltage switchgear  6.MNS type low-voltage withdrawable switchgear  7.MS low-voltage withdrawable switchgear  8.GCS type low-voltage withdrawable switchgear  9.MNSQH withdrawable low-voltage switchgear  10.GCK(L)Low Voltage Drawout Switchgear GCK(L)  Usage conditions  1.The ambient air temperature shall not exceed+40℃,not be lower than-5℃,and its average temperature shall not exceed+35℃within 24 hours.  2.Air cleanliness:At a maximum temperature of+40℃,the relative humidity should not exceed 50%,and at lower temperatures,a higher relative humidity is allowed.  3.Pollution level 3.  The altitude of the installation site shall not exceed 2000m.  5.Special usage conditions will be negotiated separately when placing an order.  Performance characteristics  1.Reasonable design:Unit based design is carried out according to the characteristics of various switch electrical systems,and functional units are combined;  2.Universal structure and flexible assembly:C-shaped profiles meet various structural forms Requirements for protection level and surrounding conditions for use;  3.Standard modules can be composed of various standard unit module structures such as protection,operation,conversion,and control,and can be selected arbitrarily;  4.Safety protection:Adopt isolation between areas and mutual isolation between functional unit incoming and outgoing lines to effectively enhance safety protection performance;  5.Technical parameters:The main technical parameters are at the international level.

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132-3379-5088