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Home > Products > 12kV Indoor HV Load Switch > Yfzn16b-12 New Type of High-Voltage Vacuum Load Break Switch Indoor Use

Yfzn16b-12 New Type of High-Voltage Vacuum Load Break Switch Indoor Use

Basic Info

Model No.:  YFZN16B-12D/T630-20J

Product Description

Model NO.: YFZN16B-12D/T630-20J Usage: Breaking Transfer Current Number of Switch: Multi Control Switch Model No.: Yfzn16b-12 Test Equipment: IEC Standard Trademark: YF Function: Industry Pole: 3 Certification: SGS, ISO9001, CE Operation Model: Manual or Electrical Operation Environment: Indoor Origin: Jiangyin Yunfeng, China Product Overview
YF16B(YFZN16B)-12 series indoor AC HV Vacuum Load Switch and load switch-fuse combination unit("series vacuum load switch")is the product researched and developed independently by our company. Its performance meets the requirements of national standards GB 3804-2004 High-voltage alternating-current switches for rated voltage above 3.6kV and less than 40.5kV and GB 16926-2009 High-voltage alternating current switch-fuse combinations and international standard IEC 420.It has advantages of small volume, safe and reliable breaking, long electrical endurance,availability for frequent operation,breaking transfer current,large short-circuit current,obvious isolating fracture, manual and electric functions,availability for achieving the remote control and conformity to the requirements of smart power grid,ect. The product includes the CTE2 two-level drive spring operation mechanism self-developed and awarded with several national invention patents.

Yfzn16b-12 New Type of High-Voltage Vacuum Load Break Switch Indoor Use 

 Yfzn16b-12 New Type of High-Voltage Vacuum Load Break Switch Indoor Use

Model Specification
Yfzn16b-12 New Type of High-Voltage Vacuum Load Break Switch Indoor Use

Service Conditions
          2.Ambient temperature-25ºC-+ 40ºC;
          3.The daily average of relative humidity shall not be larger than 95% and the monthly average shall not be               larger than 90%:
          4.The ambient air shall not be subject to the obvious pollution such as corrosive or combustible gas and                   steam;
          5.The site without fire hazards and explosion hazards;
          6.The site that the seismic intensity does not exceed degree 8; the gradient shall not exceed 5°

Main Technical Parameters
Serial No. Item Unit YF16B-12 Hv Load Switch
1 Rated voltage kV 12
2 Rated frequency Hz 50
3 Rated current A 630
4 Rated short-circuit breaking current of fuse kA ---
5 Rated breaking-transfer(handover)current A ---
6 Rated active load breaking current A 630
7 5% rated active load breaking current A 31.5
8 Rated closed loop breaking current A ---
9 Rated cable charging breaking current A 10
10 Rated line charging breaking current A 1
11 Rated grounding fault breaking current A 30
12 Rated cable charging breaking current under grounding fault conditions A 17.4
13 Rated breaking no-load transformer capacity kVA 2000
14 Rated breaking current of single capacitor bank A 400
15 Rated short-time withstand current(thermal          ---Load switch(including disconnector) kA/s 20/4
stability current)                                                    ---Earthing Switch kA/s 20/2
16 Rated short-circuit making current kA 50
17 Rated peak withstand current(dynamic current) kA 50
18 1 min power-frequency withstand voltage(effective value)to earth,phase-to-phase,vacuum fracture/isolating fracture kV/kV 42/48
19 Full-wave lightning impluse withstand voltage(peak) to earth,phase-to-phase,vacuum fracture/isolating fracture kV/kV 75/85
20 Main loop resistance μΩ ≤100
21 Mechanical life Time 10000
22 Clearance between open contacts mm 9±1
23 Overtravel(compression length of contact spring) mm  
24 Gross thickness of contact wear mm 3
25 Average opening speed m/s 0.8~1.2
26 Average closing speed m/s 0.45~0.85
27 Rated contact pressure N 900±200
28 Connact closing bounce time ms ≤2
29 Three-phase opening and closing asynchronization ms ≤1
30 Inter-pole center distance mm 210±3
31 Distance between live parts and of phase to earth mm ≥125
32 Closing operation torque of vacuum arc-extinguishing chamber N.m ≤80
33 Opening operation force of vacuum arc-extinguishing chamber N ≤10
34 Rated closing operation voltage V ≌220/110
35 Rated opening operation voltage V ≌220/110
36 Time of switch opening triggered by breaking of fuse ms ---
37 Impact output energy at breaking of fuse J(Joule) ---

Selection of HV current-limiting fuse
Transformer capacity(kVA) 100 125 160 200 250 300/315 400 500 630 750/850 1000 1250 1600 2000 2500
Rated current of fuse(A) 16 16 16 20 25 31.5 40 50 63 80 80 100 125 160 200

The model of recommended fuse is VRNT-12HV current-limiting fuse;
The impact output energy of recommended fuse is:1J(Joule) middle-sized.

Yfzn16b-12 New Type of High-Voltage Vacuum Load Break Switch Indoor Use     Yfzn16b-12 New Type of High-Voltage Vacuum Load Break Switch Indoor Use


Contact us if you need more details on Vacuum Load Switch. We are ready to answer your questions on packaging, logistics, certification or any Other aspects about Switchgear、with Disconnector. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : 12kV Indoor HV Load Switch