Hammad Group

Transformers,Distribution and Power Transformer,Varivolt Safety Transformers Diesel Generators Industrial Panels Stabilizers Energy Saver Industrial Panels

We can provide all type of current transformer and voltage transformer for outdoor type and indoor type, zero sequence ct.

Rated frequency 50Hz or 60Hz Rated secondary current 5A or 1A Rated short-time thermal current 40kA,1s Rated insulation level 12/42/75 kV Ambient temperature 25~40 Altitude Up to 1000m above sea level Indoor device Standards The product performance is in accordance with GB20840.1 GB20840.2 and IEC61869-1 IEC61869-2 standards.

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.

FEATURES Most cost-effective Faster installation Safe and easy installations High accuracy 0.5 Holding wire diameter: 32mm Ratio ranging from 60/1A to 600/5A CE, UL PARAMETERS Technical parameters Standards IEC/EN60044-1 & IEC61010-1 & IEC61869-2&ANSI C57.13 Ratio 400: 5 or 200:5 , customized Nominal input current Primary current 100A/150A/200A/300A/400A/500A/600A Overload withstand 1.2 times rated current continuously Accuracy 0.2%, 0.5 %, 1%/60Hz System Voltage 720V(0.72kV) Output signal 1A or 5A 333mV AC or 100mV-2V optional Burden 2.5VA Frequency range 40 Hz-500 Hz Dielectric strength 3KV 50Hz/60Hz at 1 minute Output Standard 2.5 meter cable Max. jaw opening 32 mm Mechanical parameters Dimensions (DH) (mm) 110mm130mm 41mm Weight(g) 700 Operating conditions Operating temperature -25 C to +55 C Relative Humidity 0-85% non-condensing Altitude