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Xi'an Liou Measurement and Control Technology Co., Ltd
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Xi'an Liou Measurement and Control Technology Co., Ltd

  • E-mail

    xaleomc@126.com

  • Phone

    18189155621

  • Address

    301, Landao Zhongxin Building, No. 4 Keji 6th Road, High tech Zone, Xi'an City, Shaanxi Province

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Digital meter for high-voltage lightning arrester

NegotiableUpdate on 01/05
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Overview
The LE-MOA-601LZ high-voltage lightning arrester digital meter developed and produced by LIOUSENSOR is an intelligent monitoring device with high-precision measurement, self OLED display, and data remote transmission functions. Supports LoRa wireless communication, complies with State Grid standards, and can achieve real-time monitoring and alarm of full current, resistive current, and lightning strike frequency. Protection level IP67, suitable for harsh environments, easy to install, providing reliable lightning arrester status data support for power systems.
Product Details

Digital meter for high-voltage lightning arresterHigh precision measurement, self display function, data remote transmission, nationwide shipment, Liou measurement and control

(LE-MOA-601LZ)

Product Introduction

Digital meter for high-voltage lightning arresterIt is a new generation lightning arrester monitor developed based on the digital meter specifications of State Grid Smart Substation. Using a 3-digit electromagnetic counter display, the full current is designed with a wide temperature spontaneous OLED display screen, which is clearly visible in sunlight. The current detection adopts a new high-precision zero flux current sensor, which has higher accuracy than traditional pointer meters. The communication part adopts RS485 with optoelectronic isolation and Modbus communication protocol for digital meters. The power supply part also adopts electromagnetic isolation power supply, which can withstand ± 15KV voltage surge to ensure electrical safety. The stainless steel shell and full shell chassis design have a protection level of not less than IP65 and comply with the relevant requirements of JB/T 10492-2011.

高压避雷器数字化表计

Product Features

1. Easy and fast installation and construction: no need to lay power cables and voltage synchronization cables, easy to install, can achieve uninterrupted installation and replacement, and has powerful software functions for debugging and integration

2. Compliant with industry standards: The product has passed the "Digital Remote Transmission Meter Special Testing" by China Electric Power Research Institute, and the communication protocol testing of IoT sensors, node devices, and access devices for transmission and transformation equipment by Jiangsu Electric Power Research Institute

3. Safe and reliable: meets the information security requirements of State Grid Corporation of China, and can quickly access various data management platforms

4. Comprehensive and accurate measurement data: capable of achieving high-precision, large-scale measurement of leakage current, and high-precision measurement signal analysis; Eliminating the 'zero drift problem'; Can calculate the harmonic components of leakage current and resistive current

Product features

1. Automatic monitoring function: It can periodically automatically monitor the full current, number of actions, and action time of the lightning arrester.

Wireless communication function. This function is mainly for the LoRa wireless communication function of the lightning arrester monitoring device. Upload the characteristic data of the lightning arrester to the station aggregation node device through LoRa communication, and complete the data upload every 5 minutes.

The LoRa communication of the device complies with the "Q/GDW 12020-2019 Transmission and Transformation Equipment IoT Micro Power Wireless Network Communication Protocol" and can be directly connected to the perception layer of the transmission and transformation IoT without the need for other configurations.

2. Local display function: The lightning arrester action count is displayed using a 3-digit electromagnetic counter. The full current is displayed on a scale (the scale range can be configured). The scale has a normal area (green), a caution area (yellow), and an alarm area (red).

3. Automatic monitoring function: It can periodically automatically monitor the full current, number of actions, and action time of the lightning arrester.

4. Wireless communication function: This function is mainly the LoRa wireless communication function of the lightning arrester monitoring device. Upload the characteristic data of the lightning arrester to the station aggregation node device through LoRa communication, and complete the data upload every 5 minutes. The LoRa communication of the device complies with the "Q/GDW 12020-2019 Transmission and Transformation Equipment IoT Micro Power Wireless Network Communication Protocol" and can be directly connected to the perception layer of the transmission and transformation IoT without the need for other configurations.

5. Local display function: The lightning arrester action count is displayed using a 3-digit electromagnetic counter. The full current is displayed on a scale (the scale range can be configured). The scale has a normal area (green), a caution area (yellow), and an alarm area (red).

6. Alarm function: It has an abnormal alarm function. When the monitoring data exceeds the standard or the monitoring function fails, it will give a real-time alarm. The alarm settings can be modified, and the alarm information can be uploaded in real time.

7. Meter style appearance: The device adopts a meter style appearance structure, which is consistent with the installation size of traditional lightning arrester monitors and can be directly replaced for installation.

Technical Specifications

parameter name

parameter value

Nominal discharge current

10 kA

Nominal discharge residual voltage

≤3 kV

Square wave tolerance 2ms

1000 A

High current withstand capacity 4/10uS

100 kA

Minimum operating current 8/20uS

50 A

data transmission

Lora/2.4G 20min/time or RS485 real-time data communication

Counting range

0-99 (recyclable counting)

Power mode

Leakage current/photovoltaic

Total machine power

≤0.05W

communication protocol

Lora/State Grid Micro Power Wireless Transmission Protocol

Communication module power consumption

≤0.03W

communication distance

≥ 500m (open area)

Leakage full current measurement range

100μA to 5mA/100μA to 10mA

Accuracy of leakage full current measurement

± (standard reading x 2%+5 μ A)

Measurement range of resistive current

10 μ A~5mA/10 μ A~10mA (calculated value)

Measurement accuracy of leakage resistive current

± (standard reading x 5%+5 μ A)

Working environment temperature

-40℃~+85℃

Working environment humidity

<95%

Protection level

IP67

weight

Less than 3kg

altitude

≤4000m

Application Cases

高压避雷器数字化表计

高压避雷器数字化表计

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