The HEJS-H full program-controlled instrument transformer calibration device is a new generation of instrument transformer verification device, it is developed by our company in order to adapt to the fast and accurate characteristics of modern instrument transformer verification. The device is composed of HEJS-H CT PT calibrator, current load box, console, special test bench for current transformer and other parts. On the premise of maintaining the original technical characteristics, the rapid measurement of current transformers, the rapid positioning of test points, load box and the coverage of instrument transformer with various ratios have been greatly improved.
Overview
Product Introduction
The HEJS-H full program-controlled instrument transformer calibration device is a new generation of instrument transformer verification device it is developed by our company in order to adapt to the fast and accurate characteristics of modern instrument transformer verification. The device is composed of HEJS-H CT PT calibrator current load box console special test bench for current transformer and other parts. On the premise of maintaining the original technical characteristics the rapid measurement of current transformers the rapid positioning of test points load box and the coverage of instrument transformer with various ratios have been greatly improved.
Models
Technical parameters
1. Operation environment
(1) Temperature: 5℃ ~ 40℃
(2) Relative humidity: < 80% (25℃)
(3) Altitude: < 2500m
(4) Power frequency: 50Hz ± 0.5Hz
(5) Power supply voltage: 220V ± 5V
2. Technical parameters of HEJS-H CT PT Calibrator
(1). Measuring range:
In-phase component (%): 0.0001~200.0 Resolution: 0.0001
Orthogonal component (minute): 0.001~999.9 Resolution: 0.001
Impedance (Ω): 0.0001~60.0 Resolution: 0.0001
Admittance (ms): 0.0001~60.0 Resolution: 0.0001
(2). Basic error:
In-phase component: △X = ± (X×2%+Y×2% ± 2 digits)
Orthogonal component: △Y = ± (X×2%+Y×2% ± 5 digits)
"X" "Y" - the display value of the instrument
"5 digits"-the quantization error of the instrument
Dial indicator: Level 1
(3). Work scope:
Current: (1%-149%) In (In = 5A)
(5%-149%) In (In = 1A)
(4). Work load:
Current: To to Tx < 0.12Ω cosφ=1
(5). Polarity error indication
When the error exceeds 5% of the rated working current and the error exceeds 180% there should be a polarity indication.
Note: If it is greater than 10% of the rated working current and the proper polarity indication does not appear it means that the software is faulty. Please do not increase the current to avoid burning the instrument.
(6). Turn ratio error indication
When the error exceeds 5% of the rated working current and the error exceeds 30% but less than 180% there should be an error indication of the ratio.
(7). Insulation and withstand voltage test and description:
Terminal Tx connect to grounding terminal;
Terminal K and terminal D not connect to grounding terminal;
The power socket can withstand 1.5kV to the shell for 1 min.
(8). Dimensions: 445(L)×330(W)×140(H) mm3
(9). Weight: 10kg
