FIELD: transformer substations. SUBSTANCE: insulator has high-voltage interrupter and at least one SF6-insulated instrument transformer. The latter is built in insulator and has at least one magnetic core connected to ground through high- stiffness metal pipe; it also has primary winding in the form of current- conducting pipe coaxially mounted inside core. Pin conductors are placed inside pipe and pins proper are connected to its ends. Magnetic cores may be mounted in horizontal, vertical, or inclined plane and arranged in paired row. Potential transformer may be coupled with current transformer. EFFECT: reduced size. 12 cl, 10 dwg
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