MC -II Operation Manual of Series Overvoltage Action Counter
MC-II over-voltage action counter is a device for real-time and cumulative counting of the working conditions of large capacity combined over-voltage protector and general combined over-voltage protector. With this product, you can monitor the condition of the overvoltage protector and the protected circuit in detail, predict the abnormal situation before the accident, analyze the causes and prevent the accident.
1、 Scope of application:
1、 The phase spacing is 131mm and 85mm 3-10KV large capacity combined overvoltage protector and 3-10KV universal combined overvoltage protector;
two Operating environment: -20 ℃~70 ℃
2、 Product features:
1. Record the action of overvoltage protector;
2. Monitor system overvoltage to prevent accidents;
Counterpoint switch Operation and other The action of overvoltage protector caused by system overvoltage shall be recorded. Through the record of each outgoing line, the outgoing line with frequent and serious overvoltage and the insulation condition of different phases can be checked.
3. Provide basis for accident analysis;
After an accident occurs to the file system, the overvoltage action record of this product can be used as one of the bases for accident analysis.
3、 Functional principle:
MC series over-voltage action counter adopts self-designed high-speed data processing unit with strong anti-interference ability. The software digital filter conditioning circuit can accurately record the action times of over-voltage protector in real time. It is equipped with fast flash rom to save the accumulated times of three six circuit overvoltage historical operations respectively.
4、 Structure and installation:
Split structure: MC series over-voltage action counter is designed for the structure of over-voltage protector The design is divided into two parts: data acquisition and processing module and display module RJ45 interface.
Installation mode:
1. Body installation: MC overvoltage action counter passes through CT Bracket It is directly installed on the overvoltage protector.
2. Split installation: MC overvoltage action counter is separated from the body. Embedded installation on the cabinet, beautiful and elegant.
5、 Operation and maintenance:
Because the software design adopts the real-time power saving mode, MC series over-voltage action counter products are passive design, without external connection Power Supply , the body carries high performance Battery Regular use can be up to one year, and battery replacement in battery compartment is simple and convenient.
VI test method
Schematic diagram of MC overvoltage action counter test
In view of the fact that the above equipment is not easily available on site, the following simple methods are provided for reference:
1. Connect CT bracket and display with data cable;
2. Two pins of AC capacitor (1uF/630V) shall be welded with 1.5mm2 flexible conductor respectively;
3. One of the conductors passes through the phase A slot of the CT bracket;
4. Short time charging of capacitor;
5. The two conductors of the charged capacitor are short circuited, that is, the capacitor is discharged;
6. Press the key gently, and the times of phase A overvoltage will be refreshed.
