Tianjin Grewin Technology Co.,ltd. Clamp-on Flexible Rogowski coil current transformer' are designed for easy installed in tight spaces and without the need for dismantling the primary busbar or cables. 1. Features: Flexible and light weights_ Easy & quick installation in tight spaces No danger from open-circuited secondary No core saturation or damage if overloaded excellent linearity Multi- size are available 2. Applications: Power quality monitoring Power meters Smart logger Energy sub-meters Distributed measurement systems 3.Note: we-Grewin Manufacture can produce current transformer,split core CT,clamp on sensors, toroidal CT, minature CT, Flexible Rogowski coil with excellent performance. We have recieved IEC,ROHS,CE standard.
Tianjin Grewin Technology Co.,ltd. Clamp-on Flexible Rogowski coil current transformer' are designed for easy installed in tight spaces and without the need for dismantling the primary busbar or cables. 1. Features: Flexible and light weights_ Easy & quick installation in tight spaces No danger from open-circuited secondary No core saturation or damage if overloaded excellent linearity Multi- size are available 2. Applications: Power quality monitoring Power meters Smart logger Energy sub-meters Distributed measurement systems 3.Note: we-Grewin Manufacture can produce current transformer,split core CT,clamp on sensors, toroidal CT, minature CT, Flexible Rogowski coil with excellent performance. We have recieved IEC,ROHS,CE standard.
Name:Power Supply Lighting Transformer 110V We have abtained ISO9001:2015,IEC,CE approval .we guarantee quality is the first. 1. technical parameters. Toroidal Transformer I Power Thermal Fuse Current Fuse Dimension (mm) Approval Mark GWB25VA 135 ºC 250V 2A 250V T 2A 80*35 CE UL TUV CQC GWB30VA 135 ºC 250V 2A 250V T 2A 83*35 CE UL TUV CQC GWB40VA 135 ºC 250V 2A 250V T 2A 87*35 CE UL TUV CQC GWB50VA 135 ºC 250V 2A 250V T 2A 93*34 CE UL TUV CQC GWB60VA 135 ºC 250V 2A 250V T 2A 93*35 CE UL TUV CQC GWB80VA 135 ºC 250V 2A 250V T 2A 102*35 CE UL TUV CQC GWB105VA 135 ºC 250V 2A 250V T 2A 114*38 CE UL TUV CQC GWB120VA 135 ºC 250V 2A 250V T 2A 113*41 CE UL TUV CQC GWB140VA 135 ºC 250V 2A 250V T 2A 114*42 CE UL TUV CQC GWB150VA 135 ºC 250V 2A 250V T 2A 117*43 CE UL TUV CQC GWB160VA 135 ºC 250V 5A 250V T 5A 120*43 CE UL TUV CQC GWB180VA 135 ºC 250V 5A 250V T 5A 125*42 CE UL TUV CQC GWB200VA 135 ºC 250V 5A 250V T 5A 124*49 CE UL TUV CQC GWB220VA 135 ºC 250V 5A 250V T 5A 127*50 CE UL TUV CQC GWB240VA 135 ºC 250V 5A 250V T 5A 129*48 CE UL TUV CQC GWB250VA 135 ºC 250V 5A 250V T 5A 130*52 CE UL TUV CQC GWB260VA 135 ºC 250V 5A 250V T 5A 130*53 CE UL TUV CQC GWB280VA 135 ºC 250V 5A 250V T 5A 138*45 CE UL TUV CQC GWB300VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC GWB320VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC GWB340VA 135 ºC 250V 5A 250V T 10A 138*54 CE UL TUV CQC GWB360VA 135 ºC 250V 5A 250V T 10A 142*55 CE UL TUV CQC GWB380VA 135 ºC 250V 5A 250V T 10A 146*54 CE UL TUV CQC GWB400VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC GWB420VA 135 ºC 250V 5A 250V T 10A 148*56 CE UL TUV CQC GWB440VA 135 ºC 250V 5A 250V T 10A 148*60 CE UL TUV CQC GWB460VA 135 ºC 250V 5A 250V T 10A 149*64 CE UL TUV CQC GWB480VA 135 ºC 250V 5A 250V T 10A 153*59 CE UL TUV CQC GWB500VA 135 ºC 250V 5A 250V T 10A 155*62 CE UL TUV CQC 2. Test process 1 .No-load test (included no-load voltage, no load current and no load loss) 2.iInductive voltage test 3. Load test (load voltage and temperature rise 4. Temperature rise test . 5.Insulated resistance 6.Hi-pot test 7.Leakage inductance test 8.DC resistance test 9.Surface inspection. 3.customized audio toroidal transformer and solar energy transformer Application: 1) 1. audio equipment 2. electric control 3. computer 4. solar device 5.telecommunications 6.high-end and middle-end vedio etc 2). Advantages: 1.High quality 100% copper core 2.a full range of toroidal transformer 3.Specially sales and technical services:5-10Years 4.With 14 years' producing history in transformer industry 5.our company have cooperated with many customers around the world and gained good reputation at home and abroad.
We have passed ISO9001,CE,SGS approval and IEC report EFD type Transformer Parameters Model Pin Dimension A B C D E EFD-12 8 6 17 20 3.0 13.5 EFD-15 10 7.3 18.2 21.35 2.5 15 EFD-15 10 7.5 19.3 22.6 3.0 16.7 EFD-20 10 9.4 25.3 27.7 3.75 21.7 EFD-20 12 9.7 24 26.8 3 20 EFD-25 10 13.4 29.7 35.4 5 25 EFD-25 10 12.6 29.7 31.5 5 25 EFD-30 12 12.6 31.6 35.5 5 30 1).Features: Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm structure,can fine-tune the inductance, etc., are widely used in fax machines, PBX. 2). Applicable frequency range: 20 to 100kHz : Operating frequency: higher than 200kHz High magnetic flux and low loss magnetic materials With low leakage inductance and high efficiency . 3).Applications: PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments. UL insulation system for Class B (130), F (155), H (180) 4). Can make other customized Ferrite transformers: Power range: core type using N67 grade material 500: ETD54, ETD59 and E65 5)Advantage: 1.UL, CUL, CE, ISO9001:2008 2.We offer custom-made transformers, OEM and ODM are welcome 3.We deliver the quality you expect at consistently competitive prices 4.Transformer quality lifetime:10 Years. 5.Specialty Sales service:5 -10 Years 6.Transformers Test: 100% test before the shipment 1).Terms of Shipment: Within 10 working days after received related prepayment or L/C. 2).Payment terms: (1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery. (2). By irrevocable L/C at sight, to be issued immediately against confirmed order. (3). Payment by T/T, if order amount is less than USD 20,000. 3).Flow chart of trading activities: NO Step Days need 1 Request for quotation 1 day 2 Making quotations 1 day 3 Offer and counter offer 3 days 4 Sending and receiving samples 3-10 days 5 Sample confirmation 3 days 6 Placing a firm order 1 day 7 Paying and receiving the down payment 1-4 day 8 Factory production & Quality inspection 15-20 days 9 Paying and receiving the balance 4 days 10 Delivery of goods 1 days
We have passed ISO9001:2015,CE,SGS approval and IEC report 1.Technical parameters Power Input Voltage(V) Output Voltage(V) Dimension OD*H(mm) Weight (kg) GWB50VA 220V (230V) 12V 80*38 0.74 GWB100VA 220V (230V) 12V 95*45 1.25 GWB200VA 220V (230V) 12V 112*52 2.05 GWB250VA 220V (230V) 12V 118*54 3.36 GWB500VA 220V (230V) 12V 140*65 4.2 GWB1000VA 220V (230V) 12V 170*75 7.2 GWB1500VA 220V (230V) 12V 180*85 9.75 GWB2000VA 220V (230V) 12V 185*105 12 GWB3000VA 220V (230V) 12V 200*120 16.6 GWB5000VA 220V (230V) 12V 230*135 24 2. We have abtained VDE,UL,CE,ISO9000 approval .we guarantee quality is the first. Test process: 1). No-load test (included no-load voltage,no load current and no load loss) 2). IInductive voltage test 3). Load test (load voltage and temperature rise 4). Temperature rise test . 5). Insulated resistance 6).Hi-pot test 7).Leakage indutance test 8).DC resistance test 9).Surface inspection. 3.customized audio toroidal transformer and solar energy transformer Application: Grewin Electrical Supply Toroidal Transformer with ISO9001: 2015 1). Application: 1. audio equipment 2. electric control 3. computer 4.instrument 5.telecommunications 6.high-end and middle-end vedio etc 2). Advantages: 1.High quality 100% copper core 2.a full range of toroidal transformer 3.Specially sales and technical services:5-10Years 4.With 14 years' producing history in transformer induatry 5.our company have cooperated with many customers around the world and gained good reputation at home and abroad. 3).Note The above-mentioned toroidal transformer is frequently-used, we can also manufacture the products by customer design. And the specification is for reference, if has the change further, please take the material object as the standard. 4).GREWIN'S Dimension : External diameter: 40mm-300mm, height :13mm-130mm, Efficiency: 75-98% we can design the appropriate products according to customers' requirments such as installation dimension, input and output voltage,power...etc.) 4.product procedure The following picture showed you about all finished toroidal transformer production line and package with export standard carton and strong pallets: Grewin Electrical Supply Toroidal Transformer with ISO9001: 2015
We have passed ISO9001:2015,CE,SGS approval and IEC report Remark: A. D refers to the volume of a corresponding transformer, which will be replaced with a digit. For the transformer with a single winding, the corresponding max. volume can be reached; for the transformer with two or more windings, the corresponding volume will be reduced properly. B. Being a tendency of future pin transformer, it is applide with our best self-made toroidal core (Poâ?¤0.9W/Kg) in the result of High Efficiency, Low Power Loss and Low Temperature-rise to be Green, Energy-saving & Environment-friendly. C. Attributed to our Patent Technology, excluding the pins distribution mentioned above, the pins distribution can be freely adjusted by following customer's advice. D. Nice Appearance, Small Size, Moisture Proof & Mould Prevention. E. Pins Quantity can be reduced or increased based on your requirement. Minature Transformers: The dimension of the Control Transformer Usage &Toroidal Coil Structure step-up auto-transformator 380V to 200V The Partial List of GW-B Series Toroidal Transformers with Cable and Mounting Holes: 1. Installation: Horizontal (non-conventional-type base plate), sunk, side type, and bridge. 2.Application: Especially low-hum and low-dispersing construction Low-level of induction High-grade design casing possible Statically shield winding and magnetical shield winding optional Be used widely such as audio equipment,communication,new energy areas,Electrical control,Cable TV network etc. 3.Equipment: Over 50 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 2 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment as below: . Automatic Winding Machine . Semi-automatic Winding Machine . Toroidal Winding Machine . Insert Lamination Machine . Wave Soldering Machine . Plastic Termal Ultraviolet Machine . Domino Ink Jet Printing Machine Transformer Multitester for High & Low Frequency Layer Insulation Withstand Voltage Tester 4.Warning Under no circumstances should both ends of the fixing bolt simultaneously contact the metal chassis or framework as this would create a potentially dangerous 'shorted-turn'. 5.Certificate We have abtained CE CQC RoHs UL ISO9001:2015,SGS and IEC approval. We guarantee quality is the first. Test process: 1). No-load test (included no-load voltage,no load current and no load loss) 2). IInductive voltage test 3). Load test (load voltage and temperature rise 4). Temperature rise test . 5). Insulated resistance 6).Hi-pot test 7).Leakage indutance test 8).DC resistance test 9).Surface inspection. Application: 1). audio equipment 2). electric control 3). computer 4).instrument 5).telecommunications 6).high-end and middle-end vedio etc
1.We have abtained IEC,VDE,UL,CE,ISO9000 approval .we guarantee quality is the first. 2.waterproof Transformer's Dimension Sheet: (Note:Rated 105VA-1000VA for devices 105VA-1000VA watts or less, GWET-105 means 105VA size ) 3.Waterproof outdoor toroidal Transformer's Spcification: 1).WORKING AND SAFETY PROTEETION Eiectrostatic Shield Magnetic Shield TemperatureProtection OverCurrent Protection 2).INSULATION Insulation resistance test(type test):Pri.~sec. 500V DC 100 MΩMIN. HI-POT TEST(100% test):Pass ourdielectric strength test, without any breakdown Pri.~sec. AC 3.8kV for 5 seconds (leakage current 5mAMAX) 3).TEMPERATURE RISE Ta=25ºCTest by resistance method At rated load PRI.& SEC. WINDINGS'TEMPERATURE RISE 75ºCMAX. 4).MAJOR MEASUREMENT FACILITIES: HI-POT TESTER: CJ2670 INSULATION-RESISTANCE METER: ZC-7 VOL TMETER: T19-V DC-RESISTANCE METER: QJ44 AMPEREMETER: T19/1-A 5). MAIN PARAMETERS: Input Voltage:AC 220V 230v 110v (Define the voltage) Output voltage:AC 12V / 24V (Define the voltage) Power range:105VA-1KVA 6) Waterproof toroidal Transformer's materials: * Annular core: Cold rolling directional silicon steel * Insulation protection: Mylar * Core Insulation: Polyester 7C * Primary/Secondary Winding: Enamelled copper wire * Terminal cannula: PVC canula * Termial uderlay: Polyester 19C * Temperature Protection: Thermal Switch * Pri.Insulation: Polyester 7C * Insulation protection: Mylar * Coating insulation: Polyester 5C * Lead: UL WIRE * Potted resin: Potted resin * Body: PP+GFRP 7)Standard conditions and components: * Transformer should meet "Short-circuit-proof safety isolating transformer (inherently or non-inherently) IEC 61558-2-6:09" * Thermal Switch 17AM 211 120 °C Sensata Technologies or equivalent (UL E15962) * Thermal Fuse A7-5A-F 5A/138 °C Aupo Electronics or equivalent (UL E140847) * Transformer is double insulated (Class II) with Insulation Class B 120°C * Insulation tests 500VDC 100M ohm min and 4kV for 5 seconds at 5mA max leakage current 4.Application: Grewin Toroidal Waterproof Transformer with IEC Garden light LED underwater lamp LED Ground light Outdoor power Supply Humidifier Swimming pool Round Enapsulated Transformer with wire leads ,power range: 25VA-6000VA Waterproof Encapsulated transformer Application: 1. Garden light 2. LED underwater lamp 3.LED Ground light 4.Outdoor power Supply 5.Audio sound field 6.Stage lighting 7.Outdoor lighting 8.Christmas Lights
Name: Grewin 12v 24v Toroidal Transformer Ring type Transformer 100va 200va 1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China,We guarantee quality is the first: The dimension of the toroidal transformers: The Partial List of GW-B Series Toroidal Transformers with Cable and Mounting Holes: A. 1. Installation: Horizontal (non-conventional-type base plate), sunk, side type, and bridge. 2.Application: Especially low-hum and low-dispersing construction Low-level of induction High-grade design casing possible Statically shield winding and magnetical shield winding optional . Be used widely such as audio equipment,communication,new energy areas,Electrical control,Cable TV network etc. 3.Equipment: Over 50 sets toroidal/annular/ ring coil winding machines, 3 EI type transformer lines, 2 sets of vacuum annealing furnaces, A set of nitrogen and hydrogen production equipment as below: . Automatic Winding Machine . Semi-automatic Winding Machine . Toroidal Winding Machine . Insert Lamination Machine . Wave Soldering Machine . Plastic Termal Ultraviolet Machine . Domino Ink Jet Printing Machine Transformer Multitester for High & Low Frequency Layer Insulation Withstand Voltage Tester 4.Certificate The certificate of our transformer has CE CQC RoHs UL B.Dual 110V Power Transformer: For the international market request, these types of the GREWIN Transformers are designed into dual primaries for 110V. No matter what about your local voltage is 110V or 220V, you should use them. Below are the methods for using: 1. If you are using 110VAC(such as Taiwan, US), Please parallel the two primaries 110V. Please pay attention to the terminals of 110V must be short circuit, and the terminals of 0V must be short circuit. 2.If you are using 220VAC(such as Hongkong, China Mainland, Europe), Please series the two primaries. Please pay attention to one terminals of 0V must be short circuit with another terminals of 110V. CONTACT NAME CARD: 20VA 60 H25 82 10mA 1.20V 0.45kgs 30VA 65 H35 84 10mA 1.20 0.50kgs 50VA 70 H40 88 20mA 1.15 1.30kgs 100VA 85 H60 90 30mA 1.15 1.50kgs 120VA 90 H75 93 40mA 1.10 2.00kgs 200VA 110 H80 93 100mA 1.10 2.80kgs 300VA 120 H80 94 150mA 1.08 3.50kgs 500VA 130 H80 94 150mA 1.08 5.00kgs 800VA 140 H85 94 200mA 1.08 6.50kgs 1000VA 140 H85 95 300mA 1.05 8.50kgs 1500VA 160 H90 95 400mA 1.05 12.0kgs 2000VA 180 H90 95 400mA 1.05 15.0kgs 4000VA 220 H95 95 500mA 1.05 20.0kgs 6000VA 250 H95 95 500mA 1.05 25.0kgs
1).Features: Has a strong anti-interference, distributed capacitance, impedance, attenuation of low transmission, firm structure,can fine-tune the inductance, etc., are widely used in fax machines, PBX. 2). Applicable frequency range: 20 to 100kHz : Operating frequency: higher than 200kHz High magnetic flux and low loss magnetic materials With low leakage inductance and high efficiency . 3).Applications: PCB circuits, computer, TV, monitor, scanner, duplicator, mobile adapters, printer and other equipments and instruments. UL insulation system for Class B (130), F (155), H (180) 4). Can make other customized Ferrite transformers: Power range: core type using N67 grade material 500: ETD54, ETD59 and E65 5)Advantage: 1.UL, CUL, CE, ISO9001:2008 2.We offer custom-made transformers, OEM and ODM are welcome 3.We deliver the quality you expect at consistently competitive prices 4.Transformer quality lifetime:10 Years. 5.Specialty Sales service:5 -10 Years 6.Transformers Test: 100% test before the shipment
Description SCT series split-core current senses AC current from 100 to 800 Amps passing through the center conductor. Split core design permits non-contact current measurements through magnetic field induction without requiring that the primary wire be taken offline and disconnected for CT installation. This method permits a safer, easy and portable current measurement. Features ·Secondary side current less than1A ·Spite core design for wiring cable ·with a 1 meter distance copper wire for easy installation ·Work with MCM400 and optional ../1A for other model meter
Prefabricated Outdoor Power Distribution Substation is mainly used for AC 50Hz (or 60Hz), voltage 1000V and below the circuit, under the rated load can be continuous long-term work. Usually used in machine tools, mechanical equipment as electrical control lighting and light. The control transformer is working with the electromagnetic induction principle. The transformer has two sets of coils. Primary and secondary windings. The secondary coil is outside the primary coil. When the primary coil through the AC, the transformer core to produce alternating magnetic field, the secondary coil to produce induced electromotive force. The turns ratio of the Satons transformer coil is equal to the voltage ratio.
Execution standard GB 1094.1-2 power transformer general rules, power transformer temperature rise GB 1094.3 power transformer insulation level and insulation test GB 1094.5 "power transformer capacity to withstand short circuit" GB/T 6451 technical parameters and requirements of three-phase oil-immersed power transformer GB/T 15164 load guide for oil-immersed power transformer IEC76 power transformer GB 2536 "transformer oil" 800KVA~31500KVA three-phase double-winding non-excitation voltage regulating power transformer:
Introduction: Our transformers had exported to more than 50 countries in the world up to 200mva 230kv, we offers a complete range of power and distribution transformers designed to grant the reliability, durability, and efficiency required in utility, industrial, and commercial applications. QingZhong is a major transformer manufacturer throughout China offers both liquid-filled and dry-type transformers as well as services for complete life-cycle support, including replacement parts and components.
Excellent Materials: 1.Oxygen-free copper lines of lower resistivity, which will become smoother and burr-free after series of additional surface treatment, so the load loss of our transformador is lower and the electric performance is better. 2.High-quality silicon-steel plates which are of lower unit loss, and the no-load of the transformadores is lower. 3.High-quality wooden laminating insulation pieces, which wonâ??t split or move even under the influence of short circuit. 4.Thoroughly filtrated transformadores oil containing less water, gas and impurities, which makes our transformador es work better. 5.High-quality rubber sealing material, which can prevent the transformadores form aging. url:http://www.ybtransformer.com
Performance parameters of S13 type 10kV double winding series: Type rated capacity (KVA) connection group label voltage combination (KV) no-load loss (W) load loss no-load current (%) short circuit resistance (%) High pressure range low Dy Yy. 10 10 Yyn0 / S13 - M - or Dyn11 10 6.3 6 + / - 5% Plus or minus 2 x 2.5% or + 3 x 2.5% -1 x 2.5% 0.4 40 360 340 2.8 4.0. S13-M-20, 70, 525, 500, 2.5. S13-M-30, 30, 80, 630, 600, 2.3. S13-m-5050 100 910 870 2.0. S13-m-63, 110, 1040, 1040, 1.9. S13-m-80 130 1310 1250 1.9. S13-m-100, 100, 150, 1580, 1580, 1580. S13-M-125, 125, 170, 1890, 1800, 1.7. S13-m-160, 200, 2310, 2200 1.6. S13-M-200, 240, 2730 2600 1.5. S13-m-250, 250, 290, 3,050, 1.4. S13-m-315 315340 3830 3650 1.4. S13-m-400, 4410, 452043001.3. S13-m-500, 480, 5410, 5150, 5150. S13-M-630 630 570 6200 6200 1.1. S13-m-800, 700, 7500, 7500, 1.0. S13-m-1000, 830, 10300 10300 1.0. S13-m-1250, 1250, 970, 12000, 0.9. S13-m-1600 1,170 14500 14500 0.8. S13-m-2000, 1510, 17800, 17800.0.8, 5.0. S13-M-2500, 1780 20700 20700 0.7. S13-m-3150 3150 2100 24300 24300 0.7.
Dry type transformers shall be installed in accordance with the manufacturer's requirements, and shall be equipped with temperature measuring devices, generally 630kVA and above transformers. A,1000kVA and above oil-immersed transformer shall be equipped with an outdoor signal thermometer and can take distant signals. Product features: A, tank using corrugated sheet, it has the respiratory function to compensate for temperature change caused by the oil volume change, so the product without oil storage tank, obviously reduce the height of the transformer. B, because the corrugated film replaces the storage tank, the transformer oil is isolated from the outside, thus effectively preventing the entry of oxygen and water and the decrease of insulation performance. C, according to the above five performance, to ensure the oil-immersed transformer within the normal operation of the don't need an oil change, greatly reduces the maintenance cost of transformer, and prolong the service life of the transformer. D. In addition to the small capacity of copper wire, copper foil is usually used in the cylinder structure. The high voltage winding adopts multi-layer cylindrical structure to balance the ampere-turns distribution of the winding, the leakage is small, the mechanical strength is high, and the anti-short circuit capability is strong. E, iron core and winding each adopt the fastening measure, the height of the device, the low voltage lead wire and other fastening parts are equipped with self-locking anti-loose nuts, adopt the non-lifting structure, can withstand the shock of transportation. F, coil and iron core adopt vacuum drying, the transformer oil adopts vacuum filter oil and oil filling process, which minimizes the moisture in the transformer.
SC(B) type 10 epoxy resin casting dry transformer is manufactured by standard "dry power transformer", which has low performance loss, good energy saving effect, operation economy and maintenance.Besides the advanced technology structure, the anti-short circuit and the lightning impact level are high, it also has the characteristics of resistance, moisture proof, dustproof and low noise.It is widely used in high-rise buildings, airports, stations, terminals, power plants and substations.It is especially suitable for the installation and use of fire-resistant and explosive places. The standard type transformer produced by our company is not covered with shell, and the protection grade is IP00. If the customer needs to provide the protection grade for IP20 and IP23 shell.The shell can be made of ordinary steel plate, stainless steel plate, aluminum alloy and other materials according to customer's requirements, and it can be treated with acid, phosphating, spraying and etc.The temperature control display instrument and load measuring instrument are installed in the low pressure side of the shell, which is convenient for users to observe and is safe and reliable.
Product features 1. The transformer core is made of imported high quality cold rolled silicon steel, which greatly reduces the no-load loss and no-load current, and the core is bound to ensure the tightness of the core and reduce the noise. 2. The high and low voltage winding is made of anaerobic copper, and the low-voltage winding 500kVA and the following are double-layered cylindrical structures. A double helix or four-helix structure is used in 630kVA and above. Multi-layer cylindrical structures are used for high voltage windings. 3. The transformer connection group adopts Dyn11 to reduce the influence of harmonics on the power grid and improve the quality of power supply. 4. The transformer is full seal structure, extending service life, free of hanging core and maintenance. 5. The measured noise is below the standard. After normal transportation, the series of transformers can be installed with relevant parts, and the test of acceptance test can be put into operation.
Characteristic 1.oil immersed test transformer has excellent material selection, reliable quality and good stability 2.the voltage margin, corona sound small, small board 3.the use of new insulation materials, small size, light weight test Packaging Details: 1.Wrapped with plastic film. 2.Fixed in a wooden case. 3.Wooden case on a pallet.
American prefabricated substations is based on urban and rural power grid construction and development and transformation of the needs of the development of a series of products. It is the transformer body, switchgear, fuses, tap-changers, low-voltage power distribution equipment and other auxiliary equipment for the combination of transformer, to meet the user energy metering, reactive power compensation, low voltage shunt and other preparation requirements. ZGS-type modular transformer as AC 50Hz, 6 ~ 10kV network, rated capacity of 63 ~ 1600kVA independent set of power distribution equipment, both for outdoor use, can also be used indoors. Widely used in industrial parks, urban residential areas, commercial centers, high-rise buildings and temporary construction sites and other places.
