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Contact SupplierLive Tank type Current Transformers have cores, primary and secondary windings arranged in the top tank. The primary windings are then connected to primary terminals which are also arranged in the top tank. The secondary windings are taken through the HT insulator to the bottom mounting base. The mounting base has arrangement for secondary terminals inside the secondary terminal box.
Construction Features :
type: Resin Cast. Outdoor. Oil Minimum | ||||||
Nominal System Voltage (kv) | LT CT | 11 | 33 | 66 | 132 | |
Highest System Voltage (Kv) | 0.66 | 12 | 36 | 72.5 | 145 | |
Power Frequency withstand voltage( 1 min Kv) | 3 | 28 | 70 | 140 | 275 | |
impulse withstand voltage (KvP) | NA | 75 | 170 | 325 | 650 | |
Rtaed Burden | 2.5 VA to 30 Va | |||||
Rated frequency (Hz) | 50 | 50 | 50 | 50 | 50 | |
Creepage Distance Phase To Earth (m.m) | NA | 300 | 900 | 1815 | 3625 | |
Rated Primary Current | 2.5 AMP to 2000AMp | |||||
Rated Continous Thermal Current (Amp)MAx | NA | 125 %of Rated Primary Current | ||||
Rated Secondary Current | 1 Amp 5 AMP/s Per Client Requirment | |||||
Rated Short time Thermal Current | NA | 3KA to 40 KA for one three Second | ||||
Rated Dynamic current(KA Peak) | NA | 2.5 times of short time current | ||||
Accuracy class | NA | 0.2S,0.2,0.5s,0.5,1.0 for metering ,10 PS and PS for protection | ||||
Rated Instrument security Factor | 0.5,, 1.0 | less than 5 year | ||||
Rated Accuracy limit Factor | 10,20,30 | |||||
Knee Point Voltage | As per Customer requirement |