KYN44-12 switchgear is the first manufacturer in China that has passed the internal arc test with a duration of 1s, a rated breaking current of 40kA, and the switchgear does not have an external arc pressure relief channel, and has 2 invention patents, 12 utility model patents.
KYN44-12 type switchgear has unique temperature rise performance program,suitable for three-phase AC 50Hz/60Hz, rated voltage 12kV and below single bus and single bus section system, as receiving and distributing electric energy to control, protect, monitor and measure power circuits.
|
NO.
|
Item
|
Unit
|
Data
|
|
1
|
Rated voltage
|
kV
|
12
|
|
2
|
Rated frequency
|
Hz
|
50/60
|
|
3
|
Rated current of Main bus
|
A
|
630、800、1250、1600、2000、2500、3150、4000
|
|
4
|
Rated current of branch bus
|
A
|
630、800、1250、1600、2000、2500、3150、4000
|
|
5
|
Rated insulation level
|
1min Power frequency withstand voltage
|
Phase to earth and to phase
|
kV
|
42
|
|
Isolating distance
|
48
|
|
Lightning impulse withstand voltage
|
Phase to earth and to phase
|
75
|
|
Isolating distance
|
85
|
|
6
|
Rated short-circuit breaking current
|
kA
|
16、20、25、31.5、40、50
|
|
7
|
Rated short-circuit making current
|
40、50、63、80、100、125
|
|
8
|
Rated short-time withstand current（thermal stability current）*
|
16、20、25、31.5、40、50
|
|
9
|
Rated peak withstand current（dynamic current）*
|
40、50、63、80、100、125
|
|
10
|
Rated short circuit duration (thermal
stability time)*
|
S
|
4
|
|
11
|
IP grade
|
|
outer shell IP4X，
circuit breaker door opened IP2X
|
1. Normal use of environmental conditions:
Surrounding air temperature: upper limit +40℃, lower limit 15℃
Surrounding relative humidity: daily average is no more than 95%, monthly average is no more than 90%.
Saturated vapor pressure: daily average is no more than 2.2x103Mpa, and monthly average is no more than 1.8x103Mpa. When temperature drops sharply during periods of high humidity，it may cause Condensation
Altitude: not more than 1000m.
Earthquake intensity: no more than 8 degrees
Without fire, explosion, serious contamination, chemical corrosion and frequent violent vibration.
2. Special use environmental conditions:
When the product is installed at an altitude more than 1000m, must consult with manufacturer to take necessary measures to strengthen insulation when ordering.
When the maximum Surrounding temperature exceeds + 40℃, the rated current carrying capacity of the product will be reduced, must confirm with the manufacturer when ordering.
When the product is running in high humidity and/or in a climate with large temperature variations, consult with the manufacturer to take necessary measures to prevent condensation when ordering.
Q: Are you the manufacturer or trader?
A: We are both manufacturer & trader. We have our own manufacturer named TIANYI TONGYI ELECTRIC CO.,LTD, who have 27 years experience in electric industry. It covers an totally area of 117,000 m2 with 300 employees, also is a qualified supplier of China National Nuclear Corporation(CNNC) and main supplier for State Grid & China Southern Power Grid.
Q: What is your after-sales service?
A: We always provide free online service and technical support within 24 hours. 18 months warranty for customers.
Q: What is your delivery time?
A: Normally 25~35days. It depends on the order quantity and season. We have very strong capacity to produce top quality products, please inquiry us if you have any questions.
Q: What is the quality warranty time?
A: We have quality certificate CCC, CQC, ISO9001, CE ... Meanwhile, we can provide 18 months warranty for our products. Free online service and technical support within 24 hours is always provided to our customers.
Q: Do you accept ODM and OEM?
A: Yes. We have professional R & D teams to update and develop the latest technology. We also can support ODM or OEM, please send us details drawing to discuss.
Q: What is your payment terms?
A: Generally there are two payment terms:
a) 30% advance payment via T/T as a deposit, balance 70% against the shipping documents
b) Irrevocable L/C at sight
Q: If I want to visit you, how to go?
A: Our factory is located in Luoyuan County, Fuzhou City. Details address is Songshan Area, Taiwan Investment Zone, Luoyuan County, Fuzhou City, Fujian Province,China.
a) The nearest airport is Fuzhou Airport, if you come by air, please arrive in Fuzhou Airport, it takes 1 hour from the airport to our factory
b) The nearest train station is Luoyuan Station, if you come by train, please arrive in Luoyuan Station, it takes only 5 minutes to our factory.
Anyway, please contact us in advance, we will send the car to the airport or train station to pick you up.Sincerely welcome you to come and visit us.
Q: Do you need agents?
A: Yes, we welcome you to be a partner. Welcome to contact us for more information.
