11kv 33 Kv Vcb Insulated 3 Phase Drawout 10000 Mechanical Long Life
Brand Name:XK
Certification:ISO9001 / GB / IEC
Model Number:ZN63-6137
Minimum Order Quantity:1 Piece/Pieces
Place of Origin:Zhejiang, China
Supply Ability:100 Piece/Pieces per Month
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No.318 Shengli Road, Xixi Village, Huheng Industrial Zone, Yueqing City, Zhejiang Province.
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Product Details
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Product Details
Hot sale 12KV Indoor ac high voltage three-phase vacuum circuit breaker
Product Description
Vacuum Arc Recovery Phenomenon:
High vacuum possesses extremely high dialectic strength. At current
zero the cathode spot extinguishes within 10–8 second and after
this the original dielectric strength is established very soon.
This quick return of high dielectric strength is, of course, due to
the fact that the vaporized metal which is localized between the
contacts, diffuses rapidly due to absence of gas molecules. The
metal molecules are blown at high speeds to the glass walls and
condense there. After arc interruption the recovery strength during
the first few microseconds is 1 kV/µs for an arc current of 100 A,
as compared with 50 V/µs in case of air gap.
Because of the attributes of vacuum interrupters, vacuum circuit
breakers can be employed without reservations for fault clearing in
any location on a system. They are capable of handling the severe
recovery transients associated with short line faults or faults
close to a transformer without any difficulty. All forms of load
switching can be performed with the same ease.
| Item | Unit | Data | |||
| Rated voltage | KV | 12 | |||
| Maximum working voltage | KV | 12 | |||
| Rated Current | A | 630-1250 | 630-1600 | 630-1600 | |
| Rated short circuit breaking current | KA | 20 | 25 | 31.5 | |
| Rated short-circuit switching current | KA | 50 | 63 | 80 | |
| Rated peak withstand current | KA | 50 | 63 | 80 | |
| 4S rated short-circuit withstand current | KA | 20 | 25 | 31.5 | |
| Rated insulation level | 1min Power frequency withstand voltage | KV | 42(fracture 48) | ||
| lmpulse withstand voltage | KV | 75(fracture 84) | |||
| Rated short-circuit current breaking times | Times | 50 | |||
| Rated Operating Mechanism Closing Voltage(DC) | V | AC,DC 110,220 | |||
| Rated Operating Mechanism Opening Voltage(DC) | V | AC,DC 110,220 | |||
| Contact opening distance | mm | 11±1 | |||
| Overtravel(the length of contact spring compression) | mm | 3.5±0.5 | |||
| Closing/Opening Time Difference Among Three Phase | ms | ≤2 | |||
| Contact closing bounce time | ms | ≤2 | |||
| Average opening speed | m/s | 0.9-1.2 | |||
| Average closing speed | m/s | 0.5-0.8 | |||
| Tripping Time | Maximum operating voltage | S | ≤0.05 | ||
| Minimum operating voltage | S | ≤0.08 | |||
| Closing time | S | 0.1 | |||
| The main circuit resistance of each phase | 630≤50 | 1250≤45 | 1600≤40 | ||
| Allowed Consumpted thickness of Contacts | mm | 3 | |||
XK 11kv/33kv insulated high voltage 3 phase drawout vacuum circuit breaker vcb
Company Information
FAQ
Q1. Can we have our logo or company name to be printed on your
products or the package?
Yes,you can.Logo and company name can be printed on our products by
silk screen printing.You can send us the artwork by email in JPEG
or TIFF format.
Q2. What is lead time?
Usually 3-15 working days, On-Time delivery
Q3. Why us?
All products comply with the requirements of GB national standards,
IC, ANSI and other international standards, and the requirements of
company's technology standards.
Q4. How do you make our business long-term and good relationship?
1. Our high quality and competitive price are the most important
factors to maintain long-term and good relation -ship with our
customers.
2. Good service is our basic principle for every customers.
Q5. Can I have a visit to your factory before the order?
Sure,welcome to visit our factory.
11kv 33 Kv Vcb Insulated 3 Phase Drawout 10000 Mechanical Long Life
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