Synthetic electric field measuring instrument, ultra-high voltage converter station field strength meter

Synthetic electric field measuring instrument, ultra-high voltage converter station field strength meter

【High voltage DC transmission and transformation synthesis field strength testerProduct Introduction

With the rapid development of high-voltage direct current transmission projects, the electromagnetic environment around high-voltage direct current transmission lines has attracted increasing attention. As I
The implementation of environmental impact assessment for high-voltage direct current transmission and transformation projects by the government, as well as the detection of ground composite field strength and ion current density of high-voltage direct current electric fields, has become a major focus
This is an important task.
2. Ground synthesized field strength is an important detection indicator in high-voltage direct current transmission and transformation facilities. Each measurement unit urgently needs a measurement that is accurate, reliable, efficient, and convenient
The solution.
3. The ST400 high-voltage direct current transmission and transformation synthesis field strength and ion current density detection system is a testing system specially designed by our company for engineers engaged in high-voltage direct current detection
The system fully considers various complex situations during on-site inspections, making on-site inspections as easy and convenient as possible. Users can quickly complete point deployment and
Take measurements. A system simultaneously measures the composite field strength and ion current density of DC transmission lines and converter stations under normal operating conditions.

4. Monitor the electromagnetic environment of high-voltage direct current transmission and transformation lines and converter stations, following standard requirements. It is necessary to conduct cross-sectional monitoring on the direct current lines, attenuation monitoring outside the converter station walls, and monitoring at sensitive points.
5. It can achieve synchronous collection of composite field strength and ion current density at multiple points, with optional monitoring time. It automatically calculates the distribution of characteristic values of composite field strength (Es), Exo, Eor), and ion current density (Es0, ErI), and supports the acquisition of various environmental parameters such as temperature, relative humidity, atmospheric pressure, wind speed, and wind direction.
6. The probe is connected to the host through a LoRa wireless module, without the need for a relay point, ensuring reliable networking. Supports simultaneous measurement with more than 20 probes.
8. The measurement of composite field strength can measure the magnitude and polarity of the DC composite field strength. Field grinding is used to measure the ground composite field strength, and a 1m * 1m metal plate is used as the grounding reference plane for the field grinding, which is reliably grounded.
9. Ion current density measurement can measure the size and polarity of ion current density. A flat double-sided metal plate is used to collect charge current to measure ion current density. The size of the collection plate is 1m * 1m, and the probe is placed on an insulated support at the same height as the grounding reference plane.

Synthetic electric field measuring instrument, ultra-high voltage converter station field strength meter

Applicable standards for high-voltage direct current transmission and transformation composite field strength tester

DL/T 1088-2008 "Electromagnetic Environmental Parameter Limits for 800kV Ultra High Voltage DC Transmission Lines";
DL/T 1089-2008 "Test Method for Composite Field Strength and Ion Density of DC Converter Stations and Lines";
GB/T 37543-2019 "Measurement Method for Composite Field Strength and Ion Density of DC Transmission Lines and Converter Stations";
GB 39220-2020 "Limits and Monitoring Methods for Synthetic Electric Fields in Direct Current Transmission Projects", etc.