Supplier Details

 

Year Established:2013

Business Type:

Management Certifiation:

  • LB current transformer

LB current transformer

It is outdoor, single phase and oil-immersed hair-pin type current transformer, which is used for metering and relay protection of 66kv, 110/132kv, 220kv 50/60Hz. Please contact us! Email:

Product Details

Quick Details

Description

Email: liujing@mec.com.cn
Skype:liujingmec
MSN:lijing_0612@126.com
 
123123
It is outdoor, single phase and oil-immersed hair-pin type current transformer, which is used for metering and relay protection of 66kv, 110/132kv, 220kv 50/60Hz.
 
It is oil/paper insulation system, the primary insulation is wound from high voltage cable paper, and is placed several capacitor screen of voltage division in the primary insulation, which can improve electric field distributing and decrease the consumption of the insulation material. It will be immersed with transformer oil after desiccating vacuum. It has advantages of stable and reliable performance of insulation, rich successful experience, a long life time and convenient maintenance.
 
Perfect fluidity performance of transformer oil is good for heat dissipation. It also has self recover ability for the failure of partial discharge caused by air bubble and dust.
 
Item
Unit
LB5-66
LB6-110
LB7-220
Rated voltage
kV
66
110/132
220
Highest voltage
kV
72.5
126/145
252
Rated frequency
Hz
50/60
50/60
50/60
Rated transformation ritio
 
2×25~2×1000/5 or 1A
2×30~2×1000/5 or 1A
2×300~2×1000/5 or 1A
Number of secondary windings
 
1~5
1~6
1~8
Accuracy of measuring winding
 
0.2 0.2S 0.5 0.5S
0.2 0.2S 0.5 0.5S
0.2 0.2S 0.5 0.5S
Accuracy of protection winding
 
5P or 10P
5P or 10P
5P or 10P
Rated secondary output
VA
20~50
20~50
20~50
Creepage distance
mm
W1/1500
W2/1820
W3/2250
W1/2760
W2/3150
W3/3906
W1/5040
W2/6300
W3/7812
Power frequency withstand voltage
rms
140
185(230)(275)
395(460)
Lightning impulse withstand voltage
rms
325
450(550)(650)
950(1050)
 
 
 

Company Profile

Our  Group was established in the end of the year 1997. It covers a land area of 400,000㎡and a building area of 120,000㎡ in Dalian, P.R. China.Our Group has more than 1400 employees including 296 technicians and 45 experienced senior engineers.
Mainly Independently develops and manufactures 0.22-35KV Dry type Instrument Transformer, 35-220KV Oil-insulated and Gas-insulated Instrument Transformer, 10-40.5 Vacuum Switch and ≤220KV classes of Composite Insulation Arrester. The products sales network covers all over the country and capacity occupies about 15% of the national market. Part of our products are also exported to many countries and regions in Africa, Asia, Middle East, South America, etc. Presently
We owns 580 sets advanced production equipments and 168 sets precise test instruments to build a good platform for independ innovation. Every year, dozens of new products come out and over 30 products got national patent. Our Group has acquired different honorary titles more than 50 items. We are sincerely looking forward to co-operating with domestic and overseas friends.
 

MEC

 

Post Buying Request

  • * Title:Please input title
  • * Message:Please input message
  • Your message must be between 20-8000 characters
  • * Your Email Address:Please input Email
  • Your email is also your login ID