Year1
Turn-adjustable arc suppression coil automatic tracking and compensation complete set
Description
Ming
Book
Li Wei
Baoding Mingrui Optoelectronics Technology Co., Ltd.< br/> < /C:\C~\~\C~\\\.. />>
Directory
1. < /C:\C~\~\C~\\\.. />Overview............................ ........................
2. Features................................................ ........
3. Product model description................................................ .....
4. Performance................................................ ........
5. working principle................................................ ........
6. Overall composition of the device........................................ .....
(1) Grounding transformer................................ ................
(2) Adjustable-turn arc suppression coil........................ ........................
(3) Microcomputer controller............ .................................................
． Controller model................................................ ....
． Features................................................ .....
． Controller composition................................................ ....
． Control panel................................................ .......
． Controller control flow chart................................................ .
(4) Damping resistance box........................................ .............
7. Grounding line selection unit................................................ ......
． Fundamental wave amplitude........................................ .......
． Active power method........................................ ....
． Medium resistance................................................ ......
． Residual flow increment method........................................ ......
8. Resistors in parallel ............................................. .......
9. Controller Operating Instructions........................................ ....
(1) Operation panel........................................ ..................
(2) Menu operation........................ ........................
10. Controller wiring................................................ .......
11. Complete device selection................................................ ......
12. Installation of complete equipment...................................... .....
Thirteen． download Google................................................ ........
Fourteen． < /C:\C~\~\C~\\\.. />Product warranty........................ ........................
Fifteen. < /C:\C~\~\C~\\\B.. />Notes........................ ........................
>
1. Overview
For power systems with different voltage levels, the grounding methods of the neutral point are different. According to my country's national conditions, my country's power distribution system mainly adopts the small current grounding operation method. In order to effectively prevent system arc grounding, eliminate ground faults, and improve power supply quality, in accordance with the new national overvoltage protection design specifications, arc suppression coil devices should be installed when the grid capacitance current exceeds. Since the ground current of a power system whose neutral point is grounded through an arc suppression coil is small, its small interference to nearby communications is also an advantage of this grounding method.
In the past, my country's power grid generally used manual turn-adjustable arc suppression coils. Since the capacitive current of the power grid cannot be monitored in real time, its main defects are shown in the following two aspects:
Adjustment is inconvenient and requires the device to be taken out of operation. adjust.
It is difficult to judge and cannot accurately judge the operating status of the system. Therefore, it is difficult to ensure that the detuning degree and neutral point displacement voltage meet the requirements.
The R series adjustable-turn arc-extinguishing coil device developed and produced by our company adopts a standard industrial-grade computer system, bus structure, multi-layer circuit board design, full-color large-screen LCD screen, and full Chinese characters. show. It has the characteristics of stable and reliable operation, intuitive display, and strong anti-interference ability. At the same time, the system has complete parameter setting and information query functions. This system overcomes the shortcomings of the previous small adjustment range of each arc-extinguishing coil device and is capable of comprehensive adjustment.
This device uses advanced algorithms such as residual current incremental method and active power method to select high-voltage grounding lines accurately and quickly.
This product is widely used in transformation and distribution stations of large-scale factories and mining enterprises such as power supply industry, power plants, metallurgy, mining, coal, papermaking, petrochemical industry, etc. It is suitable for voltage levels ~ and is an ideal replacement for old-fashioned arc suppression coils. The product is also the first choice supporting product for grounding compensation and line selection devices in newly built substations.
2. Product Features
(1) The controller adopts an industrial computer platform, dual-C architecture, multi-layer circuit board processing, and operates stably and reliably.
(2) Using full-color LCD display in Chinese, parameter display, setting and query are convenient and intuitive.
(3) The adjustment is accurate, fast, and has a wide adjustment range. It can be adjusted within the full range of ~ rated current.
(4) The built-in high-voltage grounding line selection module adopts the residual current incremental method and the active power method to make line selection fast and accurate.
(5) It is equipped with R and R communication interfaces, which can realize communication with the host computer and achieve long-distance transmission of signals.
(6) It can realize the sound and light alarm function of single-phase ground fault.
(7) Equipped with a standard parallel port printer, which can realize data printing and grounding information printing.
(8) It has one control and two functions, which can realize two sets of arc suppression coils in the same system to automatically change according to the system operation conditions.
3. Product model description
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4. Performance indicators
(1) Voltage level :~
(2) Number of busbar sections: two sections
(3) Capacitance current measurement error: less than
(4) Gear adjustment time: less than
(5) Grounding residual current: Less than
(6) Controller power supply:
One way AC, rated frequency:
One way
MRD-XHZ adjustable-turn arc-extinguishing coil grounding bias-magnetic arc-extinguishing coil compensation device
价格
￥98000.00元/套
- total supply
- 1 套
- MOQ
- 1 套
- brand
- 明瑞
- area
- HebeiBaoding City
- Delivery period：
- Shipped within 30 days from the date of payment by the buyer
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