HEQG Secondary Voltage Drop & Load Tester

1. Product introduction

HEQG secondary voltage drop & load tester uses a large-capacity of lithium battery as the working power source which can not only ensure the safety of the system but also provide a relatively pure power source for the instrument avoid power interference on-site and ensure measurement accuracy.

2. Functions and characters

● Can realize automatic measurement for three-phase three-wire three-phase four-wire and single-phase;

● Using industrial plastic case strong and durable effectively guarantee the safety of testers and system;

● Can automatically switch measurement range to ensure test accuracy;

● Adopt electronic circuit combined with DSP technique to make test stable and strong anti-interface ability.

● Automatically calculate all the parameters refer to load after completing test which is convenient for customers to analyze and test.

● With LCD menu operation the test results can be stored after power off can transmit the data connect with computer.

● Use high capacity 7.2V11Ah lithium battery as power supply no effect to circuit prevent the protection of the system. It also can be used if there was not power supply source on site.

● Use clamp ammeter to sample current in the secondary load test need not disconnect the secondary circuit. Realize online test without power off.

● Working time up to 24 hours (longest).

● With deft charger convenient to measure can connect with external charger to test if low power.

● Small in volume light in weight.

● Wide secondary current / voltage measuring range. It can analyze the resistance and impedance of 1mΩ when the operating current is 50mA; It can test actual load of s-class current transformer online when the secondary rated current is 5A; It can distinguish the conductance and susceptance of 0.001mS under the working voltage of 5 V.

● Can store 480 groups test results can save for 10 years after power off.

● With LCD and RS232 communication interface.

Technical parameters
1. Environmental Conditions
- Temperature : -5℃ ~ 40℃
- Relative humidity : < 95% (25℃）
- Altitude: < 2500m
- Outside interference: no particularly strong vibration no particularly strong electromagnetic fields
2. The technical specifications when secondary voltage drop test
(1) Measuring range:
Ratio error: 0.001% ~ 19.99%; Angle error: 0.01’ ~ 599’
(2) Resolution:
Ratio error: 0.001%; Angle error: 0.01’
(3) The instrument error
-DX=± (1%×X+1%×Y±2 digits);
-DY=± (1%×X+1%×Y±2 digits).
2 Digit means the quantization error of the instrument.
(4) The accuracy of voltage meter: 0.5%
(5) Working range
- Voltage: (50 ~ 120) V
(6) The instrument indicates action value (Error prompt)
- Error prompt: when ratio error is more than 20% or angle error is more than 600’.
- Voltage prompt: when voltage is less than 2V.
3. The technical specifications when PT secondary load test
1) PT secondary load test
Admittance measuring range: 0.1ms ~ 50.0ms
Measurement accuracy of admittance:
- Secondary voltage: 50V~ 120V
- ∆X = ± ( X*1%+Y *1% ±2 digits )
- ∆Y = ± ( X*1%+Y *1% ±2 digits )
Note: when the measured values is less than 0.2mS the test voltage shall be maintained at 50V or more while paying attention to the feedthrough wire clamp remain in center. The quantization error of instrument is 5 digits.
2) The accuracy of voltage meter: 0.5%
4. The technical specifications when CT secondary load test
1) CT secondary load test
- Impedance measurement range: 0.1Ω ~ 50.0Ω
- Impedance measurement accuracy:
- ∆X = ± ( X*1%+Y *1% ±2 digits )
- ∆Y = ± ( X*1%+Y *1% ±2 digits )
2) The accuracy of current meter: 1%
2 Digit means the quantization error of the instrument.

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

HEQG Secondary Voltage Drop & Load Tester

Product Introduction

Technical Parameters

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After Service

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