450V to 220V Three Phase Control Isolation Transformer

 GeneralJBK3 / 5 series machine tool control transformer is the latest transformer series introduced by Germany in the mid-1990s. Basedon domestic JBK3 series machine tool control transformers, it has further absorbed similar foreign products over the years, andhas optimized the terminal structure of advanced foreign methods. The terminals and the skeleton are combined together toincrease the protection level to IP2LX to prevent accidental contact with the circuit. Using domestic IT cold-pressed terminalblocks, the wiring method can make the wiring denser.The connection between the silicon steel sheet and the silicon steel sheet of the transformer, and the silicon steel sheet and thebottom plate are all welded by argon arc welding to form a whole, which is simple and clear. In particular, the bottom plate is formedat one time and the installation size is more accurate than the JBK3 series. The use of high-quality corrosion-resistant alloymaterials greatly improves the reliability of grounding performance and comprehensively improves the product quality. The productcomplies with VDE0550, IEC204-1, IEC439, JB / T9446-1999, GB5226 and other relevant international and national standards,and won the European Community "CE" certification, the United States "UL" certification. Interchangeable with foreign products.Product ModelBK/BKZ/DG/EPS UPS/JBK/HDB IT/JBMWinding MaterialEnameled copper wire / enameled aluminum wireCapacity1VA~2000KVAInput VoltageCustomizedOutput VoltageCustomizedFrequency50/60HzInsulation LevelF/HPressure-tight TestPrimary to secondary2.5KV/min;Primary to safety ground2.5KV/min;Secondary to safety ground1.5KV/minInsulation ResistancePrimary to secondary2500V>100megohm;Primary to safety ground2500V>100megohm;Secondary to safety ground1500V>100megohmInduction Withstand Voltage Test125Hz/800V/minGround Resistance25A