Our advantages are lessen charges, dynamic income team, specialized QC, sturdy factories, premium quality services for 12/24kV vacuum circuit breakers, Dry type distribution transformers, Combined Box-type Substation. We fully understand, identify and respect the laws and regulations of the country where the company operates, and build the company's development on the basis of correct ethics and values. Do everything possible to carry out service innovation and tap the service potential is the most central content of our management work, and tilting to customers is our service principle that we must persevere.

KYN28-12 metallized ac metal closed switch cabinet (hereinafter referred to as switch cabinet) is a set of indoor power distribution device with three-phase ac 50Hz, which is used to accept and distribute the network power of 3-12kv and control, protect and monitor the circuit.

The cabinet can be equipped with VSI(ZN63), ZN12V vacuum circuit breaker or imported VD4 vacuum circuit breaker and VC series vacuum contactor.

The product is characterized by small volume,light weight,operation flexibility,maintenance convenience, and quality stability & reliability, and it comes out with perfect interlock protection functions and IP3X protecton grade, so it is an ideal product for mains grid reconstruction.

Product parameters:

1.Rtaed Voltage: 11kv

2.Rated Current:1250A/630A

3.Temperature rise current:1.1Ir

4.Rated power frequency 1min withstand voltage (phase to ground):95kV

5.Peak value of rated lightning impulse withstand voltage (1.2 ÷ 50s) (phase to ground):125kV

6.Rated short-circuit breaking current:31.5kV

7.Rated short-circuit making current:80kA

8.Rated short-time withstand current and duration:31.5/4 25/4 kA/s

9.Rated peak withstand current:80kA

10.Short time power frequency withstand voltage of auxiliary and control circuit:2kV

Feature:

1.11kV switchgear is simple in structure,convenient in maintenance and convenient in overall layout and operation;

2.The supporting interlocking action is stable and reliable;

3.Wide use;

4.Reliable performance;

Our Vd4-24kv Indoor Vacuum Circuit Breaker for Switchgear integrates excellent corporate culture and technical advantages, with mature and reliable performance. Our sales staff will try their best to provide you with the best services. Our company, is always regarding quality as company' s foundation, seeking for development via high degree of credibility, abiding by iso9000 quality management standard strictly, creating top-ranking company by spirit of progress-marking honesty and optimism.