Product introduction
The UHV-2571B is a professional soil resistivity tester and ground resistance meter designed for soil resistivity, grounding resistance, low resistance, and AC grounding voltage testing. It uses a four-wire measurement method and interference suppression technology for reliable field testing in substations, grounding grids, transmission and distribution systems, communication base stations, and industrial facilities.
Product functions
Ground resistance testing: Accurately measures the ground resistance of grounding electrodes and grounding systems to determine whether grounding performance meets requirements.
Soil resistivity testing: Uses the four-wire method to measure soil resistivity, providing data basis for grounding grid design and grounding engineering construction.
Low resistance testing: Measures the resistance of grounding conductors, metal conductors, and connection points to check whether connections are reliable.
AC grounding voltage testing: Detects the AC voltage of the on-site grounding system, assisting in evaluating the grounding environment and interference conditions.
Anti-interference testing: Features power frequency and radio frequency interference suppression capability, suitable for complex on-site environments such as substations, distribution rooms, and grounding grids.
Four-wire precision measurement: Reduces the influence of test leads and contact resistance on measurement results, improving the accuracy of ground resistance and soil resistivity testing.
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特徴
1 高強度アルミニウム合金シェルボディ、フェーズロックループとスイッチトキャパシタフィルタを備えた回路。これに基づいて、機器は電源周波数と無線周波数干渉をシールドするのに効果的な役割を果たします。
2 DC/AC コンバータは、測定用に DC 電流を AC 低周波定電流に変換できます。
3 Auxiliary grounding resistance can change in the range of 0 ~ 2KΩ (RC), 0 ~ 40KΩ (RP), that will not affect measurement results.
4 Without manual adjustment to zero, with three and a half bits LED display, the instrument can be used for measuring the grounding resistance, the conductor resistance of low resistance, soil resistivity and AC ground voltage. If tested loop encounter failure, the screen displays "1" indicating large range, which consistent with conventional measurement practices.
15. テストの精度を確保するためのバッテリー不足電圧のインテリジェントなプロンプト。
16. 小型、軽量です。
技術的パラメータ
| 労働条件 | 周囲温度 | 0℃～+45℃ |
| 相対湿度 | ≤85%RH | |
Measurement range and constant current value (effective value) | 抵抗 | 0～20Ω(10mA)，2～200Ω(1mA)，20～2000Ω(0.1mA) |
| 電圧 | AC0～19.99V | |
| 測定精度と分解能 | Precision rowspan | 0～0.2Ω≦±3%±1d |
| 0.2Ω～1999.9Ω≤±1.5%±1d | ||
| 1～19.99V≦±3%±1d | ||
| 解決 | 0.01Ω、0.1Ω、1Ω、0.01V | |
補助機器による測定誤差 接地抵抗と接地電圧 | 補助接地抵抗を許容する | RC(between C1 and C2) |
| 0～20Ω≤1kΩ | ||
| 20～2000Ω≤2kΩ | ||
| RP(between P1 and P2) < 40kΩ， Error≤±5% | ||
許容対地電圧（実効値） 電源周波数の値) | ≤5V， Error≤±5% | |
| 電力と消費電力 | 最大電力損失 | ≤2W |
| 直流 | 8 × 1.5V (AA, R6) battery | |
| 交流 | 220V/50Hz | |
| volume and weight | 寸法 | 220×200×105mm3 |
| 重さ | ≤1.4kg |
Nニックネーム： 土壌抵抗率試験機; 土壌抵抗率計
Application Scenarios
Substations: Testing the performance of substation grounding grids and grounding systems.
Transmission and distribution lines: Testing the grounding resistance of transmission towers and distribution equipment.
Power equipment grounding: Testing the grounding condition of transformers, switchgear, and other equipment.
Building grounding systems: Testing lightning protection grounding, protective grounding, and other building grounding systems.
Communication base stations: Testing the grounding resistance and grounding system performance of communication base stations.
Grounding grid construction and acceptance: Measuring soil resistivity to provide a basis for grounding grid design, construction, and acceptance.
Lightning protection grounding testing: Testing lightning rods, surge arresters, and lightning protection grounding devices.
Industrial sites: Testing the grounding condition of factory equipment, distribution systems, and large machinery.
Grounding system maintenance: Used for periodic inspections to identify abnormal ground resistance or grounding connection issues.
Frequently Asked Questions
Q: Why is it necessary to measure soil resistivity before grounding grid design?
A: Soil resistivity is important basic data for grounding grid design, helping to determine the arrangement of grounding electrodes and the grounding scheme.
Q: Can it be used for newly built grounding systems?
A: Yes. It can be used for soil resistivity testing before construction, during construction inspection, and for ground resistance acceptance testing after completion.
Q: What is the biggest feature of this device?
A: It combines ground resistance and soil resistivity testing in a single device, while also supporting low resistance and AC grounding voltage testing.
Q:Why is soil resistivity important for grounding system design?
A:Soil resistivity is an important factor when designing a grounding system because it affects grounding electrode performance and the overall resistance of the grounding network. Accurate soil resistivity measurement helps engineers select an appropriate grounding method and design.
As an experienced manufacturer and supplier, we provide competitive factory-direct price, OEM/ODM service, technical support, calibration certification, and professional after-sales service. If you are looking for a reliable soil resistivity tester supplier or need the latest soil resistivity tester price, please contact us for a quotation and detailed technical information.
