Product Introduction

       NDHGQ-103A Transformer Calibrator can measure the ratio error, phase error, admittance, and impedance of CTs and PTs. The instrument comes with a mini printer, powerful software with table functions, and can connect to a computer to transfer test data.

Product Features

☆ Display method: Large Chinese LCD screen;
☆ Storage function: Can store up to 100,000 PT and CT data points, including error data for 1% points of CTs;
☆ Automatic measurement: Fully automatic measurement according to regulations, including automatic measurement for S-class transformers;
☆ Connectivity: Can connect to a computer;
☆ Printing function: Real-time or query printing;
☆ Measurement range: CT, PT, impedance, admittance;
☆ This transformer calibrator can automatically detect polarity, wiring, and ratio errors, effectively ensuring personal and instrument safety.

Technical Parameters

☆ Environmental conditions
      Temperature: 5℃--40℃           
      Relative humidity: <0.8 (25℃) 
      Altitude: <2500m
      Power frequency: 50Hz±0.5 Hz   
      Power voltage: 220V±5V
☆ Measurement range
      In-phase component (%): 0.0001～200.0   Resolution: 0.0001
      Quadrature component (min): 0.001～700.0    Resolution: 0.001
      Impedance (Ω): 0.0001～20.0           Resolution: 0.0001
      Admittance (ms): 0.0001～20.0         Resolution: 0.0001
☆ Basic error:
      In-phase component: ΔX=±（X×0.02＋Y×0.02）±Dx (with optional Class 1 accuracy)
      Quadrature component: ΔY=±（Y×0.02＋X×0.02×34.38）±Dy (with optional Class 1 accuracy)
                    “X, Y”——Display values of the instrument
                   “Dx, Dy”——Quantization error of the instrument
      Dimensions (mm): 260mm (L) × 350mm (W) × 150mm (H)
      Weight: 6kg