Transmission Line Impedance Analyzer HLT-300 is a high-precision instrument for testing various high-voltage transmission line parameters in power station, substation or laboratory. The instrument is integrated structure with built-in frequency conversion power module, which can output power by means of frequency conversion voltage regulation. The frequency can be changed to 45Hz or 55Hz. Digital filtering technology is adopted to avoid the interference of power frequency electric field on site, and fundamentally solve the problem of accurate measurement under the interference of strong electric field.  

The main features of Transmission Line Impedance Analyzer HL-T300 are as follows:

●Stand-alone operation using touch screen, no PC required to operate

●Super anti-induction voltage capability

●Adopt frequency conversion technology for accurate measurement

●Able to measure induced voltage and induced current directly

●Able to measure impedance, impedance angle, resistance, reactance and inductance of HV transmission line

●Able to save test results on-board

●Able to print test results directly via built-in thermal printer

●Simple wiring connection

1)Output

●Max. output voltage: AC300V

Output voltage accuracy: 0.5%

●Max. Current voltage: 8A

Output current accuracy: 0.5%

●Output Frequency: 45Hz, 55Hz

2)Capacitance measurement

Measuring range: 0.01~30µF

Measuring accuracy: ±1% reading ±0.01µF (measured value ≥1µF)

                                    ±2% reading ±0.01µF (measured value <1µF)

Resolution: 0.0001µF

3)Impedance Measurement

Measuring range: 0.1~400Ω

Measuring accuracy: ±1% reading ±0.01Ω (measured value ≥1Ω)

                                   ±2% reading ±0.01µF (measured value <1Ω)

Resolution: 0.0001Ω

4)Impedance angle

Measuring range: -180°~ +180°

Measuring accuracy: ±0.2°(voltage ≥1.0 V)

                                    ±0.3°(voltage 0.2V~1.0V)

Resolution: 0.0001°

5)Anti-interference principle: frequency conversion method

6)Anti-interference current: 80A

7)Anti-interference voltage: 30kV

8)Storage capacity: 200 test results

9)Power supply: AC 220V±10%, 50/60Hz

10)Dimension: 530x 410x 510mm(20.87x16.14x20.08 inch)

11)Weight: 65kg(143.30 lbs)

12)Environmental Conditions

●Storage temperature: -20°C to 70°C (-4°F to +158°F)

●Operating temperature: -20°C to +50°C (-4°F to +122° F)

●Humidity: < 85% RH, non-condensing

13)Safety Qualifications and EMC

●Safety: designed in accordance with IEC61010-1, 2006/95/EC

●EMC: 2004/108/EC

Transmission Line Impedance Analyzer HLT-300 is powerful test set for measuring impedance, impedance angle, resistance, reactance and inductance of HV transmission line.