Connecting terminal joint for testing voltage transformer

• Main Authors: YE HONGBING, YANG FAN, XU SUMIN
• Format: Patent
• Language: English
• Published: 04.02.2015
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The utility model discloses a connecting terminal joint for testing a voltage transformer, and belongs to the technical field of connecting posts. The connecting terminal joint comprises the connecting post and plug pin heads with a connection conductive wire. The external periphery of the connecting post is provided with an insulating sleeve. The left end of the connecting post is provided with a one-piece bolt which is provided with external threads capable of being connected with the internal part of a transformer connecting terminal. The right part of the connecting post is provided with a central jack capable of being connected with the plug pin heads. The right end surface of the connecting post is provided with a screwdriver groove. The screwdriver groove is a cross screwdriver groove, and depth of the screwdriver groove is 5mm-10mm. The one-piece bolt is connected with the internal part of the transformer connecting terminal via the external threads. The plug pin heads are a left end plug pin head and a right end plug pin head which are connected at the two ends of the conductive wire. The left end plug pin head is plugged into the central jack, and the right end plug pin head is plugged into the connecting terminal of a test instrument. Transformer test operation is enabled to be safe, convenient and rapid so that phenomena like loosening of a connecting clamp, inter-phase short circuit, grounding and damage to the test instrument can be avoided.