直流接地电阻测试仪SB—JY直流接地测试仪避免了传统查找方法的缺点，可

直流接地电阻测试仪<br><br>SB—JY直流接地测试仪避免了传统查找方法的缺点，可以在不影响直流系统工作的情况下实现接地点故障查找；实现了“便捷”、“可靠”、“安全”、“快速”、“在线”、“直接”的有效检测查找直流系统故障接地点功能；该仪表具有检测灵敏度高、抗干扰能力强、体积小、重量轻、使用方便等特点；查找直流系统接地故障时，不需要断开电源，可实现接地点定位。仪表不但能检测直流系统接地电阻阻值，还可以检测直流系统对地电容值。<br>SB—JY是我公司开发的新型直流接地检测仪表，广泛应用于电力、石化、冶金、邮电、铁道等直流系统接地故障的查找；仪表基本原理：信号发生器对桩测对象与地之间发射一个2.5Hz的低频电压信号，在故障点处产生一个泄漏电流，接收器接收故障电流，计算接地电阻值和电容值，并显示在LCD上。该仪表能全面消除容性接地假象，是一种多功能、高性能、低价位的智能型仪表。<br><br>功能特点 <br><br><br>1、各种参数键盘设定，使用灵活，可随时更改。<br>2、可根据现场绝缘实际情况设定报警值。<br>3、适用于不同类型的各种直流系统，无电压等级限制。<br>4、多种采样接收器任选，满足不同类型的回路测量，并可以随时更换。<br>5、测量接地回路电阻值和接地回路电容值，全面、准确去除电容假象接地<br>6、超低频信号注入，对直流不造成影响。<br>7、低功耗，干电池供电可连续使用5小时。<br>8、不需要调试，使用方便。<br><br>技术参数 <br><br>1、适应环境温度：10℃～+50℃<br>2、直流系统母线电压范围：≤500V DC<br>3、检测仪工作电压：干电池、锂电池<br>4、输出信号电压与频率：电压5VP—P、频率2.5.Hz<br>5、接地电阻检测范围0~50KΩ<br>6、接地电阻测量精度：0~4.5 KΩ误差≤10%<br>7、接地电容检测范围：3~60μF<br>8、接地电容测量精度：3~10μF误差¡À15%<br>9、外型尺寸（长x宽x高）：125¡Á90¡Á125（mm）

直流接地电阻测试仪<br><br>SB—JY直流接地测试仪避免了传统查找方法的缺点，可以在不影响直流系统工作的情况下实现接地点故障查找；实现了“便捷”、“可靠”、“安全”、“快速”、“在线”、“直接”的有效检测查找直流系统故障接地点功能 ；该仪表具有检测灵敏度高、抗干扰能力强、体积小、重量轻、使用方便等特点；查找直流系统接地故障时，不需要断开电源，可实现接地点定位。 仪表不但能检测直流系统接地电阻阻值，还可以检测直流系统对地电容值。<br>SB—JY是我公司开发的新型直流接地检测仪表，广泛应用于电力、石化、冶金、邮电、铁道等直流系统接地故障的查找 ；仪表基本原理：信号发生器对桩测对象与地之间发射一个2.5Hz的低频电压信号，在故障点处产生一个泄漏电流，接收器接收故障电流，计算接地电阻值和电容值，并显示在LCD上。 该仪表能全面消除容性接地假象，是一种多功能、高性能、低价位的智能型仪表。<br><br>功能特点 <br><br>1、各种参数键盘设定，使用灵活，可随时更改。<br>2、可根据现场绝缘实际情况设定报警值。<br>3、适用于不同类型的各种直流系统，无电压等级限制。<br>4、多种采样接收器任选，满足不同类型的回路测量，并可以随时更换。<br>5、测量接地回路电阻值和接地回路电容值，全面、准确去除电容假象接地<br>6、超低频信号注入，对直流不造成影响。<br>7、低功耗，干电池供电可连续使用5小时。<br>8、不需要调试，使用方便。<br><br>技术参数 <br><br>1、适应环境温度：10℃～+50℃<br>2、直流系统母线电压范围：≤500V DC<br>3、检测仪工作电压：干电池、锂电池<br>4、输出信号电压与频率：电压5VP—P、频率2.5.Hz<br>5、接地电阻检测范围0~50KΩ<br>6、接地电阻测量精度：0~4.5 KΩ误差≤10%<br>7、接地电容检测范围：3~60μF<br>8、接地电容测量精度：3~10μF误差¡À15%<br>9、外型尺寸（长x宽x高）：125¡Á90¡Á125（mm）

DC grounding resistance tester<br>Sb-jy DC grounding tester avoids the shortcomings of traditional search methods, and can find the ground fault without affecting the operation of DC system. It has the functions of "convenient", "reliable", "safe", "fast", "online" and "direct" to find the fault ground point of DC system. The instrument has high detection sensitivity and anti-interference ability Strong, small volume, light weight, easy to use and other features; when finding the DC system grounding fault, it does not need to disconnect the power supply, which can realize the positioning of the grounding point. The instrument can not only detect the grounding resistance value of DC system, but also the capacitance value of DC system to ground.<br>Sb-jy is a new type of DC grounding detection instrument developed by our company, which is widely used in finding the grounding fault of DC systems such as electric power, petrochemical, metallurgy, post and telecommunications, railway, etc.; basic principle of the instrument: the signal generator sends a 2.5hz low frequency voltage signal between the pile test object and the ground, generates a leakage current at the fault point, the receiver receives the fault current, and calculates the grounding current Resistance value and capacitance value are displayed on LCD. The instrument can completely eliminate the false appearance of capacitive grounding. It is a multi-functional, high-performance and low-cost intelligent instrument.<br>Functional characteristics<br>1. Various parameter keyboard settings are flexible and can be changed at any time.<br>2. The alarm value can be set according to the actual situation of field insulation.<br>3. It is applicable to different types of DC systems without voltage level limitation.<br>4. A variety of sampling receivers are optional to meet different types of loop measurement and can be replaced at any time.<br>5. Measure the resistance value and capacitance value of grounding circuit, and remove the false grounding of capacitance comprehensively and accurately<br>6. Ultra low frequency signal injection, no impact on DC.<br>7. Low power consumption, dry cell power supply can be used continuously for 5 hours.<br>8. It does not need debugging and is easy to use.<br>technical parameter<br>1. Applicable environment temperature: 10 ℃ ~ + 50 ℃<br>2. Voltage range of DC system bus: ≤ 500V DC<br>3. Working voltage of detector: dry battery, lithium battery<br>4. Output signal voltage and frequency: voltage 5vp-p, frequency 2.5.hz<br>5. Detection range of grounding resistance: 0 ~ 50K Ω<br>6. Measurement accuracy of grounding resistance: 0 ~ 4.5 K Ω error ≤ 10%<br>7. Detection range of grounding capacitance: 3 ~ 60 μ f<br>8. Measurement accuracy of grounding capacitance: 3-10 μ f error, 15%<br>9. External dimension (length x width x height): 125 Á, 90 Á, 125 (mm)<br>