Transformer on-site error verification device

Product Features

EDHGQB-C Transformer Calibration Meter

1. Calibrate the phase and percentage errors of current and voltage transformers.

2. Test the impedance of the secondary load of the current transformer.

3. Measure the admittance of the secondary load of the test voltage transformer.

4. Measure AC small current and AC small voltage.

5. With RS232 communication interface.

FY96 Current Transformer Load Box

Lightweight, aesthetically pleasing, and wide current range.

HJ-S10G3 Self-Boosting Precision Voltage Transformer

10kV, 0.05 class voltage transformer is a high voltage grade transformer with high accuracy, capable of verifying voltage transformers below 0.2 class, and can carry a secondary load of 0.25VA when the secondary voltage is 100V.

EDKZX05-HII Bichannel Control Box

This series of control console is suitable for voltage regulation control of 0.5-5kVA test transformers. Working Principle: By adjusting the output voltage of the autotransformer, it achieves work regulation within the rated voltage range of the test transformer. The console is equipped with a high-voltage output voltage meter and a low-voltage output current meter, allowing for easy reading of the test voltage values. With an overcurrent protection circuit, the device is reliably protected, and the designed timing alarm circuit makes testing more convenient. Proven by user experience, it is simple in principle, compact in structure, reliable in operation, and easy to use, making it an ideal equipment for high-voltage testing.

Technical Specifications

1. Equipment operating environment

Temperature: 5℃-40℃; Relative Humidity: <80% (at 25℃); Altitude: <2500m

Power Frequency: 50Hz ± 0.5 Hz   Power Voltage: 220V ± 5V

⑵. Measurement Range:

Phase Content (%): 0.0001～200.0          Resolution: 0.0001

Orthogonal Component (Parts): 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

③ Basic Tolerance:

Phase Quantity: ΔX = ±(X × 2% + Y × 2%) ± Dx (1st grade optional)

Orthogonal Component: ΔY = ±(X × 2% + Y × 2% × 34.48) (Option 1 available)

"X", "Y" — Instrument display values

"Dx, Dy" — Quantitative Errors of the Instrument

Dx=2,Dy=5 

④. Dial Indicator: 1.5 grade (1 grade option available)

2. Scope of Work:

Current: (1% - 149%) In (In = 5A)

（5%－149%）In    （In =1A）

② Voltage: (5% - 149%) Un (Un = 100V, 150V, 100V/)

          （5%－149%）Un    （Un =100V/3）

3. Workload:

⑴. Current: TO to TX < 0.12Ω, cosΦ = 1

② Voltage: a to x < 0.25VA (100V)

4. Polarization Error Indicator

Over 5% of rated working current (voltage), the error exceeds 180%, polarity indication should be applied.

Note: If the polarity indication is not present even after exceeding 10% of the rated working current (voltage), it indicates a fault. Do not increase the current (voltage) any further to prevent damaging the instrument.

5. Ratio Error Indication:

Over 5% of the rated working current (voltage), when the error exceeds 30% but is less than 180%, a ratio error indication should be present.

6. Insulation and Voltage Resistance Testing and Description:

Terminal TX (common terminal)

Power socket withstands 1.5kV, 1-minute voltage resistance

7. Key Features of Transformer Test Set:

⑴. Equipped with a 320×240 dot matrix LCD, offers a wide viewing range, with long-lasting backlighting for ease of use;

⑵. Full Chinese operational interface, aesthetically pleasing.

③. The dial gauge, percentage difference, and angle difference are displayed in extra-large fonts for easy observation by users.

Fully complies with JJG314-2010 and JJG314-2010 requirements, with automatic sampling.

Automatically detects polarity errors and ratio errors.

The master station software features virtual instrument open functionality.

⑺. Fully resolve S-grade measurement issues.

Automatic range switching

⑼. Utilizes advanced and unique circuitry combined with DSP technology to completely resolve the instability issues with capacitive-inductive phase shift circuits.

Power Consumption: ＜ 15VA (without miniature printer)

＜ 25VA (with micro printer)

Harmonic Suppression Ratio: > 40dB

Dimensions: 260mm (Length) x 350mm (Width) x 150mm (Height)

Weight: 6 Kg

Complete set of equipment