Our company has developed the WF- turn off arc suppression coil, which uses standard industrial computer system, bus structure, multi-layer circuit board design, large screen touch LCD screen, all Chinese characters display. It has the characteristics of stable and reliable operation, intuitive display, convenient operation and strong anti-interference ability. At the same time, the system has perfect parameter setting and information query function. The system overcomes the shortcomings of the previous arc suppression coil with small adjustment range, and can make full adjustment. The advanced algorithm such as residual current increasing S method and active power method is adopted to select the high voltage grounding lines, and the line selection is accurate and rapid.
Performance index
Voltage level: 6kV~66kV.
Number of busbar: two section.
Measurement error of capacitance current: less than 2%.
Filing time: less than 20ms.
Ground residual flow: less than 5A.
Controller power: AC 220V, rated frequency: 50Hz; DC 220V/110V, rated frequency: 50Hz.
The controller applies to the environment: temperature: -10 C ~+45 C; humidity: less than 95%.
Number of route selection: 8~42 road.
Communication interface: RS232/RS485
Fuction:
· Self-check: automatical or manual internal fault inspection.
· Alarm: Acousto-optic alarm and teleportation does in case of out-of-resonance beyond limit and single-phase earthing fault
· Print: Automatically or manually print
· Display: Large screen LCD can display the running state, system capacitive current , neutral voltage, neutral current, out-of-resonance degree, residual current, fault times of single-phase earthing and beginning and eliminating time of earthing.
· Teleportation: RS232 and RS422/485 interface connecting with computer-monitor system of substation.
· Sleep mode: Real time measure out-of-resonance degree, tap position and neutral voltage and follow to measure it when system operation mode changes.
· Identification: Automatically identify permanent earth fault and transient earth fault and at the same time, switch on or off arc-suppression coil to make compensation.
· Human-machine interaction: automatic or manual control switching, seting time and operation data, inquiring fault information.
· Storing and doing statistic: 500 times of capacitive current and 500 times of earthing data can be stored.
Online operation: Automatically identify system operation mode and realize
Technical parameter
WF-XHZ series arc-suspension coil complet compensation installation can change inductive current compensation of the arc suspension coil by changing inductance L. Advantages: strong adaptability in electrical network, extremely short response time and automatic detection and identification of the running status of electrical network via computer-based controller. During normal operation of the electric network, it can real-time calculate the capacitive current of the power network to earth and the out-of-resonance of power compensation network. It can realize quick and rational compensation in case of single-phase earthing.
Schematic diagram
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Mob: +86 0 138-3227-7552 (Jack) |
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Mail: weifan-Jack@mfrdo.com |
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WhatsApp: +86 138-3227-7552(Jack) |
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Q1. Are you the manufacturer or trader?
A:WEIFAN is a leading & professional manufacturer located in hebei province of China.
Q2. What is your main markets?
A:Our main market is in home & a half in South-East Asia, Middle East,West-Africa, East-European countries & Some South America..etc
Q3. What is your delivery & after-sales serive?
A:The delivery is according to order qty, normally for containers order we need 1 month. Per each month 20 containers (20’ft or 40’ft)are no problem for us .
We can answer user’s question and solve their problem in 24 hrs per each day and give full technical support in time to all of our products.
Q4. What is your product warranty?
A:Firstly we have quality certificates like CCC, ISO9001..etc .We supply 18 months quality guarantee,during this period we supply free repair,maintenance and technical support.
Q5.Do you accept OEM and ODM?
A:Yes. Our R & D team owns latest technology ,can develop & produce products as customers’ drawing & under their brand
Q6. What is your payment terms?
- 30% T/T in advance as deposit ,balanced against the shipping documents
- irrevocable L/C at sight for order which amount is over 100 thousand USD
- for old business partner,we can negociate together for other special terms
- For samples, we accept T/T,Western union, moneygram, paypal..etc
Q7. What is your terms of packing?
A: Generally, our packing is wooden case or customized packaging according to customer needs.
