Our company is in need of buying Standard Voltage Transformer and Current Transformer Burden with the following specifications: 1. Standard Voltage Transformer Accuracy Class: 0.05% Rated Primary Voltage: 6kV(6/√3kV), 10kV(10/√3kV), 22kV(22/√3kV), 35 kV(35/√3kV) Rated Secondary Voltage: 100V, 100/√3V, 100/3V Power Factor: COSΦ=1.0 Operating Range: 20%-120%).Un Frequency: 50/60Hz Insulation: Epoxy resin casting, Oil Products Structure: With voltage source Input Voltage of the Voltage Source: AC 0-250V 2. Current Transformer Burden Rated Current: 1A and 5A Power Factor and Rated Burden： COSФ=0.8: 1.25/2.5/3.75/5/6.25/7.5/10/12.5/15/20/25/30/40/50/60VA COSФ=1.0: 1.25/2.5/3.75/5/6.25/7.5/10VA Accuracy Class:±3% Operation Range: (5%-120%).In Frequency: 50Hz or 60Hz Withstand Voltage: 2kV/1min Insulation: Air