1 . JS、JCQ
The JS and JCQ series discharge counters can be used to record the number of actions of lightning arresters, The JCQ online monitor (hereinafter referred to as the monitor) not only has the function of a counter, but also has the function of monitoring the changes in the leakage current of the lightning arrester and reporting (if necessary). The two have the following common characteristics.
1. Lightweight, small in size, easy to install and u
2. Clear and obvious display, lightweight structure, beautiful appearance, and reliable sealing
3. High sensitivity, accuracy and reliability
4. Large current capacity, suitable for a wide range of voltage levels
The overall residual voltage of the 5 products is low, which has little impact on the performance of the lightning arrester
The outer surface of the product has been treated with effective anti-corrosion methods, greatly improving its corrosion resistance performance
7 Supporting products: Metal oxide lightning arrester
2. ZW-JSQ1
The ZW-JSQ1 discharge counter is composed of a sampling unit and an electromagnetic counting unit, which are connected in series between the grounding terminal of the overvoltage protector and the ground. It is used to record the number of actions of the entire overvoltage protector. The installation of the product is not suitable for places with serious pollution and severe vibration. The product adopts a specially designed nonlinear resistor for internal sampling or external sampling. It presents high resistance values in low current milliampere level areas, with low operating current. It can be connected to an external milliampere meter to test the leakage current of the protector. Its high sensitivity, accurate and reliable counting, clear and obvious display, small structure, and easy installation and use advantages. Supporting product: A three-phase combination lightning arrester (overvoltage protection zone) is provided as a complete set.
3. ZW-JSQ3
The ZW-JSQ3 overvoltage discharge counter is a device that performs real-time and cumulative counting of the working status of each phase of the overvoltage protector. Through this product, it can monitor the condition of the overvoltage protector and the protected circuit in detail, predict abnormal situations before accidents, analyze the causes of abnormal actions, and prevent accidents from occurring.
characteristic
1. Collection: The ZW-JSQ3 overvoltage discharge counter adopts a self-designed high-speed data processing unit, with strong anti-interference ability and software digital filtering. It can accurately record the number of actions between the three phases of the overvoltage protector in real time, and accumulate them in phases.
2 Display: The ZW-JSQ3 overvoltage discharge counter adopts STN dot matrix LCD display.
3 Structure: The ZW-JSQ3 overvoltage discharge counter is a two-part structure, connected through an RJ45 interface with a network cable. It can be disassembled for installation on the main body or cabinet door according to on-site needs.
4. ZW-JSQ8
The ZW-JSQ8 intelligent lightning arrester fault detection alarm device is a monitoring and transmission device that monitors the number of lightning arrester actions, leakage current, and overvoltage types during the use of lightning arresters, and can store and transmit data remotely. Suitable for lightning arresters and overvoltage protection equipment above 10kV.
Traditional lightning arrester monitors often use methods such as MOA resistance valve voltage sampling, electromagnetic counter counting, and induction coil measurement of leakage current. Low accuracy, poor anti-interference ability, low response sensitivity, no data recording function, and inability to achieve wireless transmission.
Two intelligent lightning arrester fault detection and alarm devices combine measurement, monitoring, storage, analysis and calculation, and wireless transmission technology through current sampling and the use of a microcontroller central control unit module. The current sampling method is adopted to improve the accuracy and stability of sampling, and electronic data processing technology and central processing unit are used for unified management to improve the response sensitivity and data processing ability of the equipment. The problem of data storage is solved, and data transmission ports are reserved for wired data backend transmission. The integration of wireless transmission technology enables the equipment to have wireless data transmission capabilities.
The 3 devices themselves have two power supply modes: one is powered by their own lithium battery (which can be used for more than 5 years), and the other is powered by an external power source; The sampling module can be used with a single or three hosts. Make the device suitable for different working environments and requirements. The intelligent lightning arrester fault detection and alarm device mainly consists of two parts: the sampling module and the main body of the machine.
The sampling module consists of a small self winding through core current transformer and a digital to analog conversion module, which are isolated from the measurement body to improve measurement accuracy and response sensitivity. The data is transmitted to the central processing unit through the analog-to-digital conversion module, which processes and analyzes the data, stores and displays the results, and transmits them to the background via R485 or wireless. Wireless transmission technology utilizes the popular 4G communication technology to achieve wireless transmission function and view through mobile phones and handheld computers. The power supply mode adopts lithium battery power supply and switch power module external power supply. An isolation circuit is added between the two power sources to ensure that they do not interfere with each other and are independent of each other. When the external power supply is connected, the system automatically defaults to the switch power module power supply. When the external power supply is not connected or loses power, the lithium power supply automatically connects to work.
4 main usage locations: unmanned distribution stations, distribution equipment far away from residential areas, areas where the site is difficult to view, wind power generation line equipment, photovoltaic power generation equipment, areas with severe pollution and harsh environments, etc.
