Current transformer (CT) / voltage transformer (PT) calibration tester
Full Automatic Transformer Tester (Big LCD Screen)

Main Features and Functions:
♦ 320X240-lattice big LCD display provides a wide view. Built-in long life background light that ensures clear display in any circumstance. Chinese-character state indication and operation direction are legible and neat.
♦ Dial indicator, turning error and ratio error can be simultaneously displayed in big numbers that are easily read.
♦ Measuring speed is up to 6 times each second. It can automatically sort out tolerance according to accuracy of the tested transformer, and judge whether the tolerance range is exceeded. It can measure CT, PT, Z and Y.
♦ Communication: It’s designed with RS-232 standard serial communication port to be able to transmit data to "HN-2K01B Transformer Tolerance Processing System" (software), to realize data processing by computer. It can also be connected to "HN-2K03B Full Automatic Transformer Test Equipment" to achieve fully automatic test on transformers.
♦ Automatic and manual selection of measuring range: It can switch between different levels of resolution according to the size of data; the measuring range can also be selected manually.
♦ Selection of accuracy: It can perform whole measurement at points required by the code according to different accuracy.
♦ Auto-protection and alarm on reversed polarity: When polarity is reversed, it can display indication and sound alarm.
♦ Automatic Sort-out: It can automatically sort out tolerance according to accuracy of the tested transformer, and judge whether the tolerance range is exceeded.
♦ Automatic storage and printing: It can store 100 groups of data, classify them and print out the displayed and stored data in real time.
Specifications:
♦ Working Environment:Temperature: 0℃~+40℃Relative Humidity: ≤85% (25℃)Altitude: <2500m
♦ Power Supply: AC 220V±10% 50±0.5Hz
♦ Accuracy: 1.0% and 2.0%
♦ Range of Measurement:Percentage Display:0.1~130 (%)Inphase Component: 10-6 ~±10.00 (%) Quadrature Component:10-5~±100 (`)Impedance: 0.01~2(Ω)Admittance:0.01~10 (ms)
♦ Basic Tolerance:Inphase Component: △X = ±(X 2% + Y 2% ±2 units)Quadrature Component: △Y = ±(X 2% + Y 2% ±2 units)Dial Indicator: Grade INote:"X" and "Y" are the displayed value. "2 units" is the quantized tolerance.
♦ Live Load: Current: <0.1VA Voltage < 0.1VA (100V)
♦ Operating Range:Current (A): 1%~120% In (In = 5A)Voltage (V): 20%~120% (Un = 150V, 100V,100/ V,100/3)
♦ Polarity Indication: 10% Un/In
♦ Withstand Voltage: (1) Insulation resistance between performance loop (except GND) and metal panel or metal enclosure is not less than 20 MΩ.(2) Loops that are not grounded in performance (including power sockets) should endure a sinusoidal voltage of 1.5KV 50Hz (effective value) for 1 minute to metal panel and enclosure.
♦ Power Consumption: <20VA
♦ Harmonic Restraint Ratio: >40db
♦ Dimension: 350mm (width) x 150mm (height) x 260mm (depth)
♦ Weight: 6KG