Abstract: A portable device for field testing watthour meters including a socket with one or more connectors configured to engage a watthour meter blade is disclosed. The connectors may include a pair of wire forms so oriented that the connector can connect to a watthour meter blade oriented in either of two orientations 90° apart from each other by resiliently deflecting portions of the wire forms. The connectors may include a jaw socket cup, a torsion clip in the jaw socket cup for contacting a watthour meter blade when the watthour meter blade is inserted into the jaw socket cup. The torsion clip includes a first surface and a pair of facing surfaces connected to, and extending away from, the first surface that define a channel sized to receive the watthour meter blade.

Abstract: A universal meter socket for portable test equipment has low insertion and extraction forces. The universal meter socket is durable and light in weight, providing a long service life. The universal meter socket contains field-cleanable terminals with replaceable wear components. The universal meter socket also optimizes short current paths for the high current section of the meter, further reducing equipment weight by reducing wire weight and volt-ampere (hereinafter sometimes VA) drive requirements for test equipment. The universal meter socket complies with ANSI C12.7-2005 REQUIREMENTS FOR WATTHOUR METER SOCKETS. The universal meter socket is generally intended for use with electricity meters that comply with ANSI C12 requirements.