NRYFH-H Secondary load Online Tester

NRYFH-H  Secondary load Online Tester

Classification: Measurement Product/Secondary Circuit Test

Reference standard: DL/T448-2000,JJG169-2010

Verification:  View the certificate

Instructions:  DOC Instructions

  PDF Instructions

Tel: 027-87207771 87207772 87207773 87188862

Verification certificate
Product introduction
The error of energy metering device is total error of electric energy measuring, which canuse by the meter error, voltage transformer synthesis error, current transformer composite error and voltage transformer secondary composite error, secondary load circuit tester, providing PT, CT secondary load measurement, voltage, current, phase frequency, active, reactive, apparent power, power factor and other electrical quantity measurement.
Alternative name
Secondary load online tester, transformer secondary load tester
The Characteristics of the products

1. Can realize three phase three wire, three phase four wire and single test.
2. Use industrial plastic case, strong and durable, ensure the safety of the test personnel and system.
3. Can auto shift the measurement range , ensure the accuracy.
4. Electronic circuit combined with DSP technique, good stability and strong anti-interface ability.
5. Auto calculate all the parameters refer to load after finished the test, convenient customers to analyze and test.
6. With LCD, menu operation, the test results can be stored after power off, can transmit the data connect with computer.
7. Use high capacity 7.2V11Ah lithium battery as power supply, no effect to loop, prevent the protection of the system. It also can be used if there was not power supply source on site.
8. Use clamp ammeter to sample current in the secondary load test, need not disconnect the secondary circuit. Realize online test without power off.
9. Working time up to 24 hours (longest), can test under charged state.
10. With deft charger, convenient to measure, can connect with external charger to test if low power.
11. Small in volume , light in weight.
12. Wide secondary current / voltage measurement range. Can analyze the resistance and impedance of 1mΩ, test the online actual load of S degree CT (secondary rated current is 5A) when the working current is 50Ma. Can analyze the conductance and susceptance of 0.001mS when the working voltage is 5V.
13. Can store 480 groups test results, can save for 10 years after power off.14. With LCD and RS232 communication interface.

The parameters of the products

1. Service conditions  

  temperature :-5°C~40°C

  relative humidity<95%(25°C)

  altitude<2500m

  Outside interference: without strong convulsion, without strong electromagnetic field

2. Main parameters of PT secondary load measurement

  (1) PT secondary load measurement  

      trans-admittance measurement range:0.1ms—50.0ms

      trans-admittance measurement accuracy:

      secondary voltage (50V-120V)

      X=±(1%×X+1%×Y±2个d)

      Y=±(1%×X+1%×Y±2个d)

      2 d——quantization error of the device

  Note: keep the measured voltage up 50V if the measurement value less than 0.2mS, the mean time keep the straight through wire of the meters at the center. Now the quantization error of the device is 5d.

  (2) voltmeter: 0.5%

3. Main parameters of CT secondary load measurement CT

  impedance measurement range: 0.1Ω—50.0Ω

  impedance measurement accuracy:

  X=±(1%×X+1%×Y±2d)

  Y=±(1%×X+1%×Y±2d)

  2 d——quantization error of the device

  ammeter: 1%


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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