Transformers,Distribution and Power Transformer,Varivolt Safety Transformers Diesel Generators Industrial Panels Stabilizers Energy Saver Industrial Panels
Transformer Manufacturers in and , Suppliers and exporters. Our offered Transformers are designed for keeping different customers and their requirements in mind, we use only superior quality raw material while the transformers which make us trusted Transformer Manufacturers in . Being a leading Transformer Manufacturers In we have a wide scope of our items including Control Transformer, Step-down Transformer, etc.
Product description Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard technical parameter 1. Temperature: 2. Relative humidity 3. Rated Primary Current:5-5000A 5A,1A 4.Rated secondary current:5 1A 5 Accuracy Class 0.05S 6. Allow long-term work under the rated current; More than120A across the core. Precautions: 1. The current of standard CT and tested CT must be the same in CT calibration. 2. Follow the given wiring diagram strictly. 3. Test whether the load box is accurate or not before calibrating the transformer. 4. Forbid secondary winding opening during the calibration. 5. Select demagnetization before calibration.The wiring diagram is shown in figure 5. Short out the secondary winding before cutting off the power when the demagnetization is finished. 6.Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
Product description Transformer Standard current transformer are also called precision current transformers, current transformer standards, standard CT and current transformer standards. Transformer standards are divided into current transformer standards and voltage transformer standards. Standard current transformers are used in the error test of transformers. Used as a current transformer calibration standard technical parameter Temperature -5 40 Relative humidity 80% Rated Primary Current 5-5000A 5A,1A Rated secondary current 5A 1A Accuracy Class 0.05S Allow long-term work under the rated current; More than120A across the core. Precautions The current of standard CT and tested CT must be the same in CT calibration. Follow the given wiring diagram strictly. Test whether the load box is accurate or not before calibrating the transformer. Forbid secondary winding opening during the calibration. Select demagnetization before calibration.The wiring diagram is shown in figure 5. Short out the secondary winding before cutting off the power when the demagnetization is finished. Principle wiring diagram of CT with large current generator is similar to above diagram. They are the same except the output winding of large current generator and primary winding of transformer are the same one.
Product Introduction Capacitive voltage transformer (CVT) in calibration the test must be conducted under the condition of 50Hz frequency complex geographical condition on site at the same time the traditional experiment device is difficult to meet the requirements of on-site handling testing series resonance booster device is first used in domestic field tunable resonance device has been widely used in domestic 500 kv and below the field calibration of capacitor voltage transformer. Product Parameters Technical parameters Rated Capacity 80kVA rated voltage 160kV Adjustable inductance range 65~130H Rated frequency 50Hz Rated current 0.5A Adjustable gap range 0~300mm
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Rated power: 320kVA Winding connection: Dyn11 Frequency: 50Hz Voltage: 22/0,4kV No-load losses (Po): 390 W Short-circuit losses(Pk): 3330 W Maximum no-load current(I0): 2% Short circuit voltage(Uk ): 6% Standard: : TCVN 6306 (IEC 60076); Decision 62 / Q EVN Quality standard: ISO 9001:2015; ISO 14001:2015
Distribution Transformers, Power Transformers, Furnace Transformers, Rectifier Transformer
Overview In the process of semi finished and finished production of power transformers, before the newly installed transformers are put into operation and according to the state Grid's preventive test rules, it is required to test the transformer's turn ratio or voltage ratio regularly.The traditional variable ratio bridge operation is tedious, the reading is not intuitive, and the necessary conversion, the test result is only one phase change ratio value.The transformer transformer ratio tester overcomes the shortcomings of the traditional transformer ratio bridge test, the screen uses a large screen high resolution LCD screen, convenient to use in the field, with Chinese menu prompt function, simple and intuitive operation, a complete three phase change ratio test, test speed, high accuracy. Technical parameter range 0.910000 The accuracy of reading 0.1 2 words or equal to 500 reading 0.2 2 words 500 3000 Reading 0.3 2 words 3000 The resolution of the 0.9 9.9999 0.0001 100 999.99 0.01 10000 and above 1 10 99.999 0.001 1000 9999.9 0.1 Working power supply AC220V 10 50Hz Instrument weight 3.5kg The use of temperature 10 50 Overall dimensions 260mm l 200mm W 160mmH Relative humidity 90 no dew Feature Full three phase sinusoidal inverter output, the output voltage is automatically adjusted, with soft start, soft stop function, so the test speed is fast, high precision Three-phase transformer, single-phase transformer, PT, Z type transformer ratio, group, polarity test function Blind test function, that is, variable ratio and group test when high and low pressure connection mode is not known; CT variable ratio polarity test function Angle difference test function for single-phase test Tap position can be tested up to 197
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
