顶部菜单
全站搜索
自定内容

Tel: 86057761720369 
Mobile: 15868721000  
Fax: 86057761736962 
Sales:86057762717369 
Address: Yueqing City, Zhejiang
Province, China Huang seven town
Yueqing City Industrial Zone A  
Post Code: 325604  
Q Q: 35977770  
Website: www.

自定内容
自定内容

  
RMFK electronic capacitor switch switch (composite switch)
 
RMFK (MBFK) intelligent low-voltage switch is the latest generation of low-voltage reactive power compensation device in the capacitor switch switch, is an intelligent environmental protection and energy saving control components, is my company for SCR and AC contactor at low pressure Reactive power compensation applications in the presence of inherent deficiencies and carefully developed the latest scientific and technological achievements.
This product is suitable for low-voltage reactive power compensation capacitor on-off control. The basic working principle is to connect the thyristor to the magnetic relay. So that the composite switch in the moment of turning on and off with thyristor zero cross-cutting advantages, and in the normal turn on the same time with the advantages of contactor without power.
The product and AC contactors, SCR or solid state relays and other switching components compared to a great technical advantage. The main advantage is that after receiving the external control signal, through the logic to determine, automatically find the best input (cut) point; to ensure zero-crossing switching, no inrush; contact is not sintered; low energy consumption; no harmonic injection; Abnormal protection; lack of protection; component fault protection; operation instructions and other functions. Compared with similar products, its technology has a great advanced, high efficiency and low consumption, environmental protection and energy saving, especially in the inrush and safety and reliability aspects of performance greatly improved.
In addition, for the modernization of the power distribution cabinet of the reasonable requirements, we will develop a new product volume reduction, more humane design so that wiring users are not difficult, we use the plug interface, allowing you to easily remove the connector anytime, anywhere Then a good line can be inserted.
Technical Parameters
1. working environment conditions
Ambient temperature: -15 ℃ ~ +45 ℃;
Relative humidity: 40 ℃, 20% to 90%;
2. Rated voltage, working power and rated current
Rated working voltage: 380V three-phase four-wire AC 50HZ;
Allowable deviation: three-phase voltage synchronization change is not greater than ± 20%;
Waveform for the sine wave, the distortion is less than 5%;
Rated frequency: 50HZ ± 5%;
Rated current: 24/30/38/45 / 60A.
3. Main technical indicators:
Life: 500,000 times
Number of phases: three-phase (△ type connection); one-way (Y-type connection)
Control capacity: three-phase complementary capacitor group Capacity: ≤ 16/20/25/30 / 40Kvar
Phase compensation three-phase capacitor group total capacity: ≤ 16/20/25/30 / 40Kvar
Power consumption: ≤ 2W
Contact pressure: ≥ 2000V
Response time: ≤ 60ms
Two consecutive intervals: ≥15 seconds
Smart Capacitor Toggle Switch Selection Table

Model: (sub-fill type) RMFK-0.25-10-3, RMFK-0.25-20-3, RMFK-0.25-30-3, RMFK-0.25-40-3.
Model: (complement type) RMFK-0.4-10-3, RMFK-0.4-20-3, RMFK-0.4-30-3, RMFK-0.4-40-3.
The same time as
Control capacity ≤ 16Kvar ≤ 20Kvar ≤ 25Kvar ≤ 30Kvar ≤ 40Kvar
Rated current 24A 30A 38A 45A 60A
Insulation class: under normal atmospheric conditions, ≥ 10MΩ
Starting voltage: DC: 9 ~ 12V
Input impedance: ≥6.8K
On-resistance: ≤ 0.01Ω
Main technical characteristics
1. Zero-crossing switching:
The basic working principle of the composite switch is to connect the thyristor and the magnetic holding relay in parallel to realize the voltage zero-crossing conduction and the current zero-crossing cut off, so that the switch can be switched on and off at the moment. And has the advantage that the contactor switch has no power consumption during normal switching. The realization of the method is: when the voltage is zero in the moment the SCR first zero trigger, and then the magnetic holding relay pull conduction; and cut out when the first is to keep the magnetic relay relay, SCR delay Zero off, in order to achieve zero current cut off the current.
2. Using single-chip control switching and intelligent monitoring of thyristors, relays and input power and load operation, which has a perfect protection:
1) power supply voltage phase protection: power supply phase loss when the power supply, the switch refused to close; if there is no phase after the automatic withdrawal;
2) Undervoltage protection: switch rejects when the voltage is ≤ 20% of rated voltage (220V)
3) self-diagnosis fault protection: the system automatically monitors the thyristor, magnetic holding relay operating status, if its failure, then refused to close or automatically retreat open;
4) power failure protection: connected after a sudden power failure, the automatic trip off.
3. No harmonic injection: As the moment is triggered by the SCR trigger zero, after the delay by the relay pull, conduction, and relay pull conduction will not produce harmonics.
4. Small power consumption: As a result of the use of magnetic holding relay, the control device only in the switching action instantaneous power consumption, usually no power; and because the magnetic relay relay contact resistance is small, so no heat, so do not have a heat sink Or fan, reducing costs. Completely avoid the phenomenon of SCR burned, but also on the same machine to run other electrical appliances do not cause harm, and truly achieve the purpose of saving energy.
5. Input signal and composite switch photoelectric isolation: anti-interference ability, safe and reliable work.
6. Products using advanced intelligent control technology and the latest electronic components, compared with similar products, in the surge and safety and reliability has a very high performance advantage.
Copyright(C)2016-2020 Shanghai People Electric Appliance Co., 
友情链接:    天地汇棋牌娱乐   豫彩通彩票app   时时彩网投平台网址_*官方推荐*_[大地 22022]   野狼彩票---首页欢迎你   新疆11选5走势图