■ Product overview

VS-X707 high and low voltage electric CT transformation ratio tester can measure the high voltage primary current and low voltage secondary current of the high voltage metering device of 35KV and below systems without disconnecting the wires and uninterrupted power on site, and can calculate the transformation ratio and ratio error. The high-voltage clamp meter (hereinafter referred to as the clamp meter) is installed at the end of the high-voltage insulating rod to collect current signals. When working, it uses wireless transmission to send the collected results to the handheld terminal, and the terminal directly collects the secondary current of the low-voltage current transformer. The handheld terminal will calculate in real time based on the received data, and the current transformer primary/secondary current, transformation ratio and other electrical parameters are clear at a glance. The clamp meter adopts a clamp-type design, and the insulating rod can be clamped in and out by lightly pushing and pulling. The wire, pull-out high-voltage insulated operating rod can extend up to 5 meters to ensure personal safety during operation.

■ Features

▲ On-site measurement of high and low voltage CT primary and secondary current and current transformation ratio without power failure.

▲ The primary current signal adopts wireless transmission to ensure the safety of operation.

▲ The primary clamp meter is connected to the high-voltage insulation rod, which can measure the high-altitude current very conveniently.

▲ The tester uses 320*240 high dot matrix true color LCD, with a clear and intuitive interface.

▲ It can measure CT ratio difference and angle difference, and it is convenient to check the primary and secondary phase difference and phase sequence of CT.

▲ Both the host and the clamp head adopt high-speed DSP single-chip microcomputer.

▲ The high-voltage current closed clamp head can be clamped in and out of the wire by lightly pushing and lightly pulling, and the operation is convenient and safe.

▲ It can measure harmonics within 32 times of high voltage once.

▲ 2000 on-site test data can be stored.

■ Technical parameters

▲ Wireless transmission distance: The reliable transmission distance is greater than 200m in the absence of obstacles

▲ Current range: Clamp current sensor once: 500A

▲ Current sensor secondary: 5A

▲ Variable ratio measurement range: 1-5000

▲ Measurement accuracy: 1%

▲ Withstand voltage: 70000V/1 minute

▲ Weight: host 0.5kg, primary clamp meter 0.5kg, secondary clamp meter 0.15 kg

▲ The high-voltage insulation rod is a retractable structure with a maximum extension of 4 meters