High Voltage Components
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Indoor High Voltage Live Display Fault Indicator
Overview
A new type of detection equipment that monitors each circuit in real time, and can prompt or directly when the line fails.
Displaying faulty cables is of great significance for improving work efficiency and restoring power supply quickly.
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Current Transformer Secondary Overvoltage Protector
First, overview
Current transformer (CT) is widely used in primary measurement, control and protection in power systems.When normal work, the secondary side in approximate short circuit state, output voltage is very low, but in operation if the secondary winding open circuit, or a winding through abnormal current (such as lightning current, resonance current, capacitor charging current, inductor start current, etc.), will be in the secondary side of thousands or even tens of thousands of volts of overvoltage, this not only to the secondary system insulation harm, and even endanger the safety of the staff.
The CTB secondary overvoltage protector of CT B series current transformer produced by our company is designed for this situation, which can effectively prevent accidents caused by C T secondary open circuit.
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Microcomputer Harmonic Elimination Device
Overview
In the power system, ferromagnetic resonance occurs frequently, and overvoltage occurs during resonance, which seriously threatens the safety of the system. Ferromagnetic resonance overvoltage can occur in any system from 3 to 220 kV, especially in power grids of 35 kV and below, almost all internal overvoltage accidents are caused by ferromagnetic resonance. The overvoltage caused by ferromagnetic resonance is long-lasting and may even exist for a long time. In the frequency division resonance, the general overvoltage is not high, but the current of the PT is large, which is easy to cause the PT to overheat and explode; in the fundamental wave and frequency multiplication resonance, the general current is not large, but the overvoltage is very high, which often damages the equipment insulation. , causing a serious accident.
The power microcomputer harmonic elimination device is a new type of intelligent power resonance elimination device developed by our company. It is simple and convenient to use, requires no maintenance, can quickly eliminate ferromagnetic resonance of various frequencies, and has high accuracy. At the same time, the relevant information can be printed or transmitted to the superior monitoring system through the communication interface according to the user’s needs, which is suitable for unattended substations.
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Intelligent Dehumidification Device Intelligent Oil Pumping Device Mini
Overview Intelligent dehumidification device is the use of semiconductor refrigeration dehumidification mode, the humid air in the closed space under the action of the fan inhalation dehumidification air duct, the water vapor in the air through the semiconductor refrigeration mechanism condensed into water, and then through the guide pipe through the cabinet, can achieve a good dehumidification effect. When there is no manual open dehumidification function: when the ambient humidity is higher... -
Intelligent Dehumidification Deviceintelligent Oil Pumping Deviceconventional
Summary Intelligent dehumidification device is the use of semiconductor refrigeration dehumidification mode, the closed space of the wet air in the fan under the action of the fan, the air water vapor through the semiconductor refrigeration mechanism after condensing into water, and then eliminate the cabinet through the guide pipe, can achieve a good dehumidification effect. Cooling type: F01 is set at 0. Meanwhile, the dehumidification device is automatically started when the ambient humidi... -
Small Current Grounding Line Selection Device
Overview
Small current wire selection device is an integral part of the industrial field circuit protection system, the device can accurately determine the location of the fault when the circuit system occurs grounding (arc or metallic) phenomenon, and the information for remote transmission, so as to facilitate the maintenance of the site personnel.
1.1. Function and characteristics
The structure of the device adopts modular design, and the main controller adopts 16-bit high performance single chip computer with high speed data acquisition module. Among the modules, CAN communication methods with redundant verification and multi-master transmission are used for data exchange and sharing.The panel uses the display screen and a simple 5-key operation function for man-machine dialogue.
The system adopts double watchdog mode to detect the operation of the system; wide working input voltage, high current signal measurement accuracy; fault and setting information memory function; real-time data and fault data remote transmission function.
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Indoor High Voltage Live Display
Product Details Overview This product is a HX2 phase comparator (PC) designed and produced by our company according to the requirements of users, which is used in conjunction with the DXN80 series of indoor high-voltage live display devices (the indicator panel sets the phase test end). It is suitable for substations and power distribution stations (especially when cables enter the line) that are equipped with dual power supplies and multiple power supplies for indoor 3.6, 7.2, 12, 40.5kV,...
