NR302A Transmission Line Tester

The NR302A transmission line tester is specially used for testing transformer loss parameters and line power frequency parameters. The instrument is designed with exquisite design superior performance and powerful functions. It adopts advanced multi-A/D synchronous AC sampling and digital signal processing technology inside which successfully solves the problem of synchronous measurement and calculation of multi-channel signals. The instrument uses a large-screen LCD display English menu prompts simple operation equipped with a high-speed thermal printer and is designed with a storage function to facilitate data storage and printing. The instrument is small in size light in weight easy to carry and extremely convenient to use on site which greatly reduces the labor intensity of test personnel and improves work efficiency.

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

Voltage measurement range	AC: 25V ~ 500V
Current measurement range	AC 0.025A ~ 50A
Maximum output current	10A
Output signal frequency	45H/55Hz; 47.5H/52.5Hz; Interference current <40A
Measurement accuracy	Voltage current impedance	Power
	0.2%	When the power factor is > 0.1: 0.5%; When the power factor is ≤ 0.1: 1%;
Measurement range	0.1-50μF	0.5-400Ω	0°- 360°
Measurement resolution	0.01μF	0.01Ω	0.01°
	0.1μF-1μF: ±3% ±0.05μF	0Ω-1Ω: ±3% ±0.05Ω	±0.2° (voltage > 1.0V)
	1μF-50μF: ±1.5% ±0.03μF	1Ω-400Ω: ±1.5% ±0.03Ω	±0.3° (voltage 0.2V-1.0V)
Dimension	535mm×435mm×360mm (not include wheels)
Weight	61Kg

(1) Anti-interference parameter:
    Interference voltage: after connecting to the power supply of the instrument the longitudinal induction voltage is less than 350V;
    Interference current: when the both end of the line is grounding it is less than 40A;
    It can complete the test stably and accurately when the ratio between instrument output signal and interference signal is 1:10.
(2) Operating environment
   Temperature: -15℃ ~ 40℃
   Related humidity: < 90%.

产品严格按照国际、国家标准及行业规程生产，通过国家、各省级、市级电力研究所、计量中心及电力权威部门的检测，以下为校准证书及检定证书样本。

注：电缆交流耐压谐振试验产品参数及外观仅供参考，参数与型号如有变动，恕不另行通知，咨询热线：027-84828685。

Service Principles
We strictly implement the "After-sales Service Commitments", and we firmly believe that high-quality, systematic, comprehensive and fast service is the foundation of business development. We adhere to the principle of "User First", build a good after-sales service system, and provide customers with high-quality pre-sales, in-sales and after-sales services!
Pre-sales Service Commitments
● Supply professional consulting services;
● Provide detailed product information;
● Offer reasonable price.
● Welcome customer to visit
In-Sales Service Commitments
● Signing contract and technical agreement;
● Supply quality products on time;
● Provide suitable package to ensure the products received in good condition.
● Active communication
After Sales Service Commitments
● Professional after-sale service team to supply technical support;
● One-year free warranty, life-long maintenance;
● Help troubleshooting within 24 hours.
● Professional R&D team meets your special requirement.

需要说明书的可以电话联系我们或是发邮件给我们索取说明书。

索要说明书电话：027-8717 9600
邮箱：whnanrui@126.com

NR302A Transmission Line Tester

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