The on-site calibration instrument for voltage transformers uses a large-screen Chinese character LCD display and employs LCD backlight control, allowing users to conveniently adjust the backlight according to ambient light, thoroughly solving the problem of digital tubes being hard to read outdoors. It directly provides test values and rounded values for each point, with immediate prompts for out-of-tolerance conditions. It offers standard test methods for S-class and light-load conditions, along with corresponding automatic control functions for the operating console. It provides asset number entry and storage functions, facilitating on-site data management by computer. It directly displays the on-site CT test wiring diagram.
- Chinese Name
- On-site Calibration Instrument for Voltage Transformer
- Automatic Storage
- 50 sets (full load and light load) of measurement data
- Automatic Rounding
- Automatic rounding of error data
- Direct S-class Measurement
- Can directly measure S-class transformers
- Automatic Measurement
- Automatically performs full load and light load measurements
Introduction
Automatic Measurement
According to the measurement points required by regulations, it can automatically perform full load and light load measurements with different accuracy requirements.
Automatic Storage
Can store 50 sets (full load and light load) of measurement data.
Automatic Rounding
It can automatically round error data according to the accuracy class of the tested transformer and determine whether it is out of tolerance.
Computer Connection
Can transfer data to the "HHH-H Transformer Error Data Management System" (software) for computer management.
Calibration Bench Connection
Connects with the HEJH-H transformer calibration bench to achieve full automation.
Direct S-class Measurement
Can directly measure S-class transformers with a wide measurement range.
Technical Specifications
1. Measurement Range:
In-phase component (%): 0.0001～19.99 Resolution: 0.0001
Quadrature component (minutes): 0.001～600 Resolution: 0.001
Impedance (Ω): 0.0001～5.99 Resolution: 0.0001
Admittance (mS): 0.0001～5.99 Resolution: 0.0001
2. Operating Range:
Current: (1%~149%) In (In=5A)
(5%~149%) In (In=1A)
Voltage: (5%~149%) Un (Un=100V, 150V, 100V/√3)
(5%~199%) Un (Un=100V/3)
