It meets the requirements of the "State Grid Corporation's Eighteen Major Anti-accident Measures for the Power Grid", the air gap between all conductors and the ground is ≥300mm,
and no insulating plates are used in
the high voltage switchgear.
The cable room adopts a new type of
ground knife operating rod downward movement structure independently developed
by our company, which can not only ensure the reliability of mechanical
interlocking, but also maximize the air clearance between the conductors in the
cable room and the ground, and ensure that the C-phase charged body electrical
Air distance reaches 300mm.
By
adopting the "temperature contrast type" temperature and humidity
controller to control the heating load, the temperature in the switch cabinet
is always higher than the room temperature outside the switch cabinet,
achieving the effect of active anti-condensation.
Explosion-proof lock points are added to
the circuit breaker door, cable room door and cable room lighting lamp shade
respectively to increase operational safety.
Has a number of patents, equipped with
the VB5 (ZN21D) series circuit breaker independently developed by our company.
|
NO.
|
Item
|
Unit
|
Specification
|
|
1
|
Rated Voltage
|
kV
|
40.5
|
|
2
|
Rated frequency
|
Hz
|
50/60
|
|
3
|
Rated current of Main bus
|
A
|
1250、1600、2000、2500
|
|
4
|
Rated current of branch bus
|
A
|
630～2500
|
|
5
|
Rated insulation level
|
1min Power frequency withstand voltage
(effective value)
|
kV
|
95（Phase to phase、phase to earth）
|
115（Isolating distance）
|
|
Lightning impulse withstand voltage (peak)
|
185（Phase to phase、phase to earth）
|
215（Isolating distance）
|
|
assistant control circuit 1min Power
frequency withstand voltage
|
V
|
2000
|
|
6
|
Rated short-circuit breaking current
|
kA
|
25、31.5
|
|
7
|
Rated short-circuit making current(peak)
|
kA
|
63、80
|
|
8
|
Rated short-time withstand current（4s）
|
kA
|
25、31.5
|
|
9
|
Rated peak withstand current
|
kA
|
63、80
|
|
10
|
Rated voltage of assistant control circuit
|
V
|
AC/DC 110、220
|
|
11
|
IP grade
|
|
outer shell: IP4X
between the compartment: IP2X
|
|
12
|
Dimension（W×D×H）
|
mm
|
1400（1200）×3300×2600（High current overhead option）
1400（1200）×3100×2600（overhead option）
1400（1200）×2800×2600
|
|
13
|
weight
|
kg
|
About 2300
|
|
The Altitude
|
≤1000 meter
|
|
Ambient Air Temperature
|
upper limit +40℃, lower limit -25℃
|
|
The Relative Humidity of the Surrounding Air
|
the daily average value is not more than 95%, and the monthly average value is not more than 90%.
|
|
In order to ensure the insulation performance of the switchgear, the ambient humidity should be properly controlled
|
|
Earthquake Intensity
|
≤8 degree
|
|
The Inclination of the Ground
|
≤3°
|
|
There is no danger of fire and explosion, no severely polluted places such as severe vibration and chemical corrosion.
|
Note:When the working environment conditions are different from the above regulations, the user can negotiate with us.
Q: Are you the high voltage switchgear 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 high voltage switchgear?
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 high voltage switchgear agents?
A: Yes, we welcome you to be a partner. Welcome to contact us for more information.
