Current e.g. short-circuit current, measuring device e.g. flexible and adjustable circular rogowski current sensor, for on-site functioning test application, has bypass unit bypassing wire extending between points and end point of wire

摘要

The device (11) has a winding wire (31) comprising ends (32, 33), and a wire-wound portion (42) extending between an end (14) of a non-magnetic support (12) and an end point (43) of the wire. Connection units (34, 35) are electrically coupled to the ends of the wire and connected to an electric voltage measuring unit. A bypass unit electrically bypasses a part of the wire extending between anchoring points i.e. holes (21-23), and the end point of the wire when an attachment i.e. hook (25), is attached to the anchoring points.