The WF-BZJ series transformer neutral point grounding protection complete set is a kind of protective clothing manufactured by Baoding Wei Fan Electric Technology Co., Ltd. for the neutral point of 110kV, 220kV and 330kV. In the power system fault, the asymmetric three phase fault can decompose positive sequence component, negative sequence component and zero sequence component, while the neutral point channel of transformer coil is zero sequence channel, and zero sequence protection assembly is to remove fault element selectively according to zero sequence voltage and zero sequence current. The neutral point grounding protection of WF-BZJ series transformer is composed of single-phase isolation switch, neutral point arrester, current transformer and discharge gap and so on. It is designed to achieve two different operating modes of neutral point grounding or non grounding, thus avoiding transformer neutral point due to voltage rise caused by lightning shock and fault. High, damage to the insulation of the transformer.
Use of the environment
Installation site: outdoors.
Product structure: combined on – column equipment
Ambient air temperature:Maximum temperature: +70 C Minimum temperature: -70 C
Altitude: 2000m
Maximum wind speed: 35m/s
Seismic intensity: 8 degrees
Horizontal acceleration: 0.3g
Vertical acceleration: 0.15g
Filth grade: III (2.8kV/cm)
Overlying ice thickness: 10mm
Technical parameter
Shape and installation size
Working principle of device
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Mail: weifan-Jack@mfrdo.com |
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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.
