NR302 Series Transmission Line Tester

NR302 Series Transmission Line Tester

Classification: Cable/Circuit/Lighting Arrester Test Device

Reference standard:

Verification:  View the certificate

Instructions:  DOC Instructions

  PDF Instructions

Tel: 027-87207771 87207772 87207773 87188862

Verification certificate
Product introduction

NR302 series Transmission Line tester is designed to test transformer loss parameter, the power frequency parameters and pilot frequency parameters of transmission line (such as overhead line, cables and overhead lines combined with cable). The power frequency parameters includes positive sequence capacitance, positive sequence impedance, zero sequence capacitance, zero sequence impedance, mutual inductance and coupling, capacitance and so on.

Alternative name

Transmission line power frequency parameters testing system; Transmission line pilot frequency parameters tester; Transmission line test set; Power line tester.

The Characteristics of the products

NR302A Transmission Line tester
Product characteristics

1. The instrument have compact design, excellent performance, powerful function, internal is used with advanced multi A / D synchronous AC sampling and digital signal processing technology, which successfully solves the problem of multi-channel signal synchronous measurement and calculation.

2. The instrument uses large-screen LCD, Chinese menu prompt, simple operation, equipped with high-speed thermal printer, and design of storage function, easy to store and print data.

3. The instrument has small volume, light weight, easy to carry, and it is convenient to use, which greatly reduces the labor intensity and improves the working efficiency.

NR302B Transmission Line tester
Product characteristics

1. Fast and accurately measuring the positive sequence capacitance, zero sequence capacitance, positive sequence impedance, zero sequence impedance and other parameters of transmission lines, it also can measure the mutual inductive reactance and coupling capacitance between the lines.

2 Strong anti-interference ability, can accurately measure under the condition of the ratio between power frequency signal and pilot frequency signal is 1:10.

3. External wiring is simple, only one time to access the lead of the line to complete all the line parameters measurements. Completely solve the problems of the existing test methods which cause cumbersome wiring switching procedure and the interference of stability and accuracy.

4. The instrument with high speed single chip microcomputer as the core, to achieve the integration of test power, meter and calculation model, make a truck of equipment concentrated into a single instrument.

5. The instrument uses 320*240 large screen dot matrix LCD, operated with the rotating mouse imported from United States, embedded mini-printer to print the results, the operation is very simple.

6. Instrument testing process is fast, automatically complete test mode control, boost-buck control, data measurement and calculation, and print measurement results, one minute to complete a parameter measurement, the test time is shortened, the workload is greatly reduced.

7. High accuracy measurement, the instrument itself provides three groups of pilot frequency power supply (45Hz/57.5Hz 45Hz/55Hz 47.5Hz/55Hz) which is close to power frequency, it can easily separate frequency and clutter, effectively achieve high-precision measurement of small signals.

The parameters of the products

Project parameters
Model
NR302B Transmission Line tester

NR302A Transmission Line Tester

Power supply
Three-phase,AC380V±10%,15A,50Hz (Effective value)
AC 220V±10%   50Hz±1Hz
Maximum output voltage
Three-phase,200V Precision:1%
-
Maximum output current
10A
-
Output frequency

45Hz / 52.5Hz (<±0.1HZ);
47.5Hz / 52.5Hz (<±0.1HZ);
Interference current<40A

-
Voltage measurement range
-
AC 25V~500V
Current measuring range
-
AC 0.025A~50A
Measurement accuracy
-
0.2 level(Voltage、Electric current、Impedance Etc.)
-
Power factor>0.1:0.5 Level
-
Power factor≤0.1:1 Level
Measurement

range

Capacitance
0.1~50μF
-
Impedance
0.5~400Ω
-
Impedance angle
0°~360°
-
Measurement

resolution

Capacitance
0.01μF
-
Impedance
0.01Ω
-
Impedance angle
0.01°
-
Accuracy of

measurement

Capacitance
when 0.1μF~1μF,±3% Reading ± 0.05μF
-
1μF~50μF,±1.5%reading ± 0.03μF
-
Impedance
0Ω~1Ω,±3%Reading ± 0.05Ω
-
1Ω~400Ω,±1.5%Reading ± 0.03Ω
-
Impedance angle
±0.3°(Voltage:0.2V~1.0V)
-
±0.2°(Voltage:>1.0V)
-
Anti jamming

 parameter

Anti interference voltage

The longitudinal induction voltage connected to the
test power supply of instrument is less than 350V.


-
Anti interference current

When the both ends of the line is short connected to grounding, the current is less than 40A.

-
Working

environment

Ambient temperature
-15℃~40℃
-10℃~50℃
Relative humidity
≤90%(No condensation)
Weight
61Kg
6kg

Power supply: AC110V/115V/120V/127V/220V/230V/240V optional
Input frequency: 50Hz/60Hz optional
Note: The users can select the corresponding power which based on their local supply voltage and frequency, and we will confirm it before the delivery (or inform us that the goods will be used in which country advance)

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Product information