Neutral line insulation monitoring device

Neutral line insulation monitoring deviceMeasurement range * *: Suitable for monitoring AC, DC, and AC/DC hybrid IT systems below 800V. -Measurement accuracy: It has high-precision insulation resistance measurement function and can maintain stable measurement results in various electrical environments. -* * Measuring current * *: Measuring current<270 μ A. -Leakage capacitance: allows for a large leakage capacitance in the system. -* * Alarm function * *: It has a two-stage alarm, which can realize fault warning and fault alarm. -Alarm output: Relay output can correspond to different types of alarms such as errors, warnings, and alarms, as well as various fault indication methods such as LED alarm output. -* * Communication interface * *: One RS485 interface, using standard Modbus RTU protocol; One way CAN communication, custom protocol, used for exchanging information with signal generators and fault locators. -* * Recording function * *: It has event recording function, which can record the time and type of fault occurrence. -* * Other functions * *: Equipped with self check function and wire breakage monitoring function, it can achieve one click fault self check of instrument hardware circuit, and monitor the real-time status of PE/KE function grounding wire connection; Supports both manual and automatic reset modes.

Neutral line insulation monitoring devicefunction

1. Insulation resistance monitoringReal time monitoring of the insulation resistance of neutral wires and other conductors to ground to ensure the safe operation of the power system. When the insulation resistance value is lower than the preset threshold, the device will issue a warning or alarm signal.

2. Fault warning and alarmSupport pre alarm and main alarm functions, and users can customize alarm thresholds. When an insulation fault is detected, the device will immediately trigger an audible and visual alarm or relay signal output to remind the operation and maintenance personnel to handle it in a timely manner.

3. fault localizationBy measuring the insulation resistance values at different locations, it helps operation and maintenance personnel quickly locate the fault point and shorten the fault handling time. Some devices can also be used in conjunction with fault locators to achieve more accurate fault location.

4. Data recording and analysisThe device can record the historical changes in insulation resistance values of electrical equipment, providing data support for operation and maintenance personnel. Through data analysis, the trend of changes in equipment insulation performance can be understood, providing a basis for preventive maintenance.