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  •  Hanneng photovoltaic isolation transformer

    Outdoor photovoltaic isolation cabinet is a step-up isolation transformer, which is generally used for solar inverter. Because of the low photoelectric efficiency of photovoltaic transformer, it is particularly required that the efficiency of the transformer is high. The grid side connection of photovoltaic grid connected inverter isolation transformer is Dyn11, and the inverter is yd5 and phase shifted by 120 degrees. The photovoltaic isolation transformer can be set to work in the daytime and stop at night to reduce the no-load power loss. Silver Xi three-phase photovoltaic transformer parameters for reference! Service conditions: working environment temperature: - 15 ~ + 50 ° C; working environment humidity: 20 ~ 90% RH; working environment atmospheric pressure: 860 HPA ~ 1060 HPA; storage / transportation temperature: - 20 ° C to + 55 ° C. Main technical features: rated capacity: 5kva-3500kva; input voltage: rated voltage: 270V or 315v; input current: according to actual voltage; output voltage: rated voltage: 380V or 400V; output current: according to actual voltage; connection mode: Dyn11; Efficiency: ≥ 98.5%; frequency: 50Hz / 60Hz; insulation impedance: 25A less than 500m Ω; induced withstand voltage: 125Hz / 800V / 60 Insulation level: H level (temperature resistance 180 degrees), noise: ≤ 30dB; temperature rise: ≤ 115K allowable temperature rise; impedance voltage drop: ≤ 4%; structure: forced air cooling; when the temperature controller reaches a certain temperature according to the customer's requirements, the fan will start automatically. Protection grade: IP00 anti interference mode: copper foil isolation, shielding grounding; waveform distortion: no additional waveform distortion; electrical strength: power frequency sinusoidal voltage 3000V, no breakdown and flashover phenomenon for one minute; insulation resistance: (input and output to ground): test voltage at least 1000VDC, insulation resistance greater than 1000m Ω; overload capacity: twice the rated current, maintain for one minute professional production of various types of transformers: isolation transformer, three-phase isolation transformer, single-phase isolation transformer, dry-type isolation transformer, three-phase dry-type isolation transformer, high-power transformer, 10-1000kva transformer. Oil immersed induction voltage regulator, three-phase voltage regulator, induction voltage regulator, single-phase oil immersed voltage regulator, oil immersed self cooling induction voltage regulator, induction automatic voltage regulator, voltage regulator. Contactless regulator, compensation regulator, high-power regulator, 380V high-power regulator, automatic compensation power regulator, three-phase compensation power regulator, transformer.  

    model: Sgf-60kva photovoltaic transformer
    Power: 60KVA (customizable)
    Voltage: 380 / 380V (customizable)
    texture of material: All copper
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  •  Photovoltaic grid connected isolation transformer

    Isolation transformer is usually used in solar inverter. Because of the low photoelectric efficiency of photovoltaic transformer, it is particularly required that the efficiency of the transformer is high. The grid side connection of photovoltaic grid connected inverter isolation transformer Dyn11 or Y / yo photovoltaic isolation transformer can be set to work in the daytime and stop at night to reduce the no-load loss of electric energy. Photovoltaic inverter isolation transformer is a kind of technology that uses photovoltaic effect of semiconductor interface to convert light energy into electric energy directly. The key component of this technology is solar cells. After series connection, the solar cells can be packaged and protected to form a large area of solar cell modules, and then combined with power controller and other components to form a photovoltaic power generation device. Photovoltaic transformer is usually used in solar inverter. Because of the low photoelectric efficiency of photovoltaic transformer, it is particularly required that the efficiency of the transformer is high. The grid side connection of photovoltaic grid connected inverter isolation transformer is Dyn11, and the inverter is yd5 and phase shifted by 120 degrees. The photovoltaic isolation transformer can be set to work in the daytime and stop at night to reduce the no-load power loss. Technical index capacity: 0.5kva-1600kva input voltage: 380V output voltage: 380V voltage variation rate: ± 1% output waveform distortion: no distortion (compared with input waveform) insulation level: F level, H level (conventional H level) temperature resistance 180 ° working efficiency: ≥ 98% applicable frequency: 50 / 60Hz connection mode: △ Y / Y / Y Dyn11 (customized according to customer's requirements) overload capacity: allowed to work for 1 hour (long-term full load) over 1.5 times of rated load noise: ≤ 35dB (within one meter) temperature Rise: ≤ 60 ℃ insulation resistance: ≥ 150m Ω electrical strength: 3000VAC / 1min design life: 20 years working environment: temperature: - 20 ~ + 50 ℃ humidity: ≤ 95% RH non condensing workplace: non corrosive gas and conductive dust safety standards: products meet international national standards such as vde0550, iec439, jb5555, gb226, etc. cooling method: dry air cooling model specification product structure diagram

    model: SGF-100KW
    Power: 100kW (customizable)
    Voltage: 380V / 380V (customizable)
    texture of material: Copper wire (5 years warranty)
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  •  Photovoltaic isolation transformer

    Isolation transformer is usually used in solar inverter. Because of the low photoelectric efficiency of photovoltaic transformer, it is particularly required that the efficiency of the transformer is high. The grid side connection of photovoltaic grid connected inverter isolation transformer Dyn11 or Y / yo photovoltaic isolation transformer can be set to work in the daytime and stop at night to reduce the no-load loss of electric energy. Photovoltaic inverter isolation transformer is a kind of technology that uses photovoltaic effect of semiconductor interface to convert light energy into electric energy directly. The key component of this technology is solar cells. After series connection, the solar cells can be packaged and protected to form a large area of solar cell modules, and then combined with power controller and other components to form a photovoltaic power generation device. Photovoltaic transformer is usually used in solar inverter. Because of the low photoelectric efficiency of photovoltaic transformer, it is particularly required that the efficiency of the transformer is high. The grid side connection of photovoltaic grid connected inverter isolation transformer is Dyn11, and the inverter is yd5 and phase shifted by 120 degrees. The photovoltaic isolation transformer can be set to work in the daytime and stop at night to reduce the no-load power loss. Technical index capacity: 0.5kva-1600kva input voltage: 380V output voltage: 380V voltage variation rate: ± 1% output waveform distortion: no distortion (compared with input waveform) insulation level: F level, H level (conventional H level) temperature resistance 180 ° working efficiency: ≥ 98% applicable frequency: 50 / 60Hz connection mode: △ Y / Y / Y Dyn11 (customized according to customer's requirements) overload capacity: allowed to work for 1 hour (long-term full load) over 1.5 times of rated load noise: ≤ 35dB (within one meter) temperature Rise: ≤ 60 ℃ insulation resistance: ≥ 150m Ω electrical strength: 3000VAC / 1min design life: 20 years working environment: temperature: - 20 ~ + 50 ℃ humidity: ≤ 95% RH non condensing workplace: no corrosive gas and conductive dust safety standards: products comply with vde0550, iec439, jb5555, gb226 and other international and national standards. Cooling method: dry air cooling model and specification product structure

    model: SGF-200KW
    Power: 200KW
    Voltage: 380V/380V
    texture of material: Copper wire (5 years warranty)
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  •  PV grid connected isolated distribution cabinet SG

    Product Description Product Description: application range: power supply brand Yinxi model GSG / SG / SGF frequency characteristics low frequency power supply phase number three phase core shape EI cooling form dry core form Core winding form: double winding, moisture-proof mode, open cooling mode, air-cooled shape structure, vertical electric voltage ratio, 380V / 380V efficiency rate, 90% rated capacity, 1-2500kva wave GSG series three-phase dry-type transformer is a new generation of energy-saving power transformer, which is developed and produced by our factory according to similar international products and China's national conditions. From 300VA to 2500kVA, it meets the international and national standards such as iec439 and gb5226. The winding adopts the method of whole train winding without additional waveform distortion The insulation grade of the transformer reaches f or H level and the product performance reaches the advanced level at home and abroad. GSG series three-phase dry-type isolation transformer is widely used in the circuit with AC frequency from 50 Hz to 60 Hz and voltage below 2000 V. It is widely used in import of important equipment, precision machine tools, mechanical and electronic equipment, medical equipment, rectification device, lighting, etc. All kinds of input and output voltage, connection group, number and position of regulating tap (generally ± 5%), distribution of winding capacity, configuration of secondary single-phase winding, application of rectifying circuit and whether shell is required can be designed and manufactured according to the requirements of users. 2、 Product features: the common mode interference and other midlines in the power grid can be relieved by establishing a new neutral line grounding in the transformer. The isolation transformer transforms the three wire delta connection into a four wire yo system, and the shielding further eliminates the high-frequency pulse interference and noise coupled by the transformer. Although the shielded isolation transformer has interference (pulse and high-frequency noise) to various N-G sources It can be effectively prevented, but the transformer must be properly grounded, which is very strict, otherwise the anti common mode interference will not be effective. Our company can design and produce high quality isolation transformer for customers. 3、 Characteristic advantages 1, high isolation 2, good N-G performance 3, high common mode anti-interference suppression 4, converting △ to y or y to △ 5, easy conversion of voltage tap 6, design according to user's special performance requirements 4. Model meaning: 5. Technical index name: type number of three-phase dry-type isolation transformer GSG (1kva-2500kva) input voltage: three-phase: 220 V, 380V, 415V, 660V, 690V, 1140V, 3000V (customer can set the voltage) output voltage: 36V, 100V, 110V, 220V, 380V, 480v, 600V, 690V (customer can set the voltage) temperature rise 155 ℃ (including ambient temperature) insulation class f noise < 60dB (one meter away) waveform distortion < 0.1% high voltage test 2500V, No breakdown in 1 minute, working frequency: 50 hz-60 Hz, efficiency ≥ 90%, service condition 1: applicable altitude: ≤ 5000m2, ambient temperature: - 15 ℃~ + 45 ℃ 3 Relative humidity: ≤ 90% 4 the installation site shall be free of gas, steam, chemical deposition, dirt, conductive dust and other explosive, flammable and corrosive substances that seriously affect the insulation strength of the transformer. If it does not meet the above conditions, it should be determined with us through consultation. Note: the principle, structure and advantages of three-phase isolation transformer. The three-phase isolation transformer adopts three-phase double winding structure, which has the characteristics of lightning protection and anti-interference. Each winding on the primary and secondary sides is divided into two coils, which are wound by two layers of mutually insulated metal foil. Therefore, there is a capacitance C (capacitive isolation transformer) between the two coils. Then, the following two wiring modes can be combined as required: 1. It has the function of voltage conversion (e.g., Delta / yo or yo / △ connection) 2. It has the function of filtering and anti-interference (for example, it can remove the third harmonic interference). It can eliminate the odd harmonic interference. 3. It can effectively restrain the disturbance harmonic and lightning electromagnetic pulse introduced from the power line to the system; 4. It can effectively restrain the disturbance harmonic generated by the electronic equipment of the system from entering the power distribution network to interfere with other equipment (devices and systems); 5. It can fundamentally prevent the system from working disorder, data loss or error caused by the disturbance of ground potential; 6. It can effectively prevent the hardware equipment in the system from being damaged by the sharp rise of the reinforcement potential as the reference ground when the lightning protection device of buildings is grounded. 7. Characteristics of isolation transformer at AC power input: A. if the third harmonic and interference signal of power grid are serious, the third harmonic can be removed and interference signal can be reduced by using isolation transformer. B. new neutral line can be generated by using isolation transformer to avoid abnormal operation of equipment due to poor neutral line of power grid. C. The current waveform distortion (such as third harmonic) caused by nonlinear load can be isolated without polluting the power grid. 8. Characteristics of isolation transformer at the output end of AC power supply: A. prevent the current distortion of nonlinear load from affecting the normal operation of AC power supply and polluting the power grid, so as to purify the power grid. B. sampling at the input of the isolation transformer, so that the distortion of the nonlinear load current does not affect the accuracy of sampling, and the control signal can reflect the actual situation. C. if the load is unbalanced, the normal operation of the regulated power supply will not be affected.   

    model: SG
    Power: 80KVA (customized)
    Voltage: 380V / customized
    texture of material: Copper wire (5 years warranty)
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  •  Photovoltaic isolation transformer

    model: SGF
    Power: 10kva
    Voltage: 380V/380V
    texture of material: Copper wire (5 years warranty)
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