Yfgz16 (ZN16B) -12 Manual and Electric Functions for AC Hv Vacuum Circuit Breaker

Model NO.: YFGZ16-12/T630-25 Operation: Manual or Electric Arc-extinguishing Medium: Vacuum Structure: Vcb Type: Circuit breaker Opertion Model: Electrically or Manually Features: Frequent Operation Long&Electrical Endurance Origin: Jiangyin Yunfeng, China Breaking Capacity: High Voltage Circuit Breakers Speed: High-Speed Circuit Breaker Installation: Front or Invert Installation Poles Number: 3 Certification: ISO9001-2000, CE Environment: Indoor Use Trademark: YF Product Overview
YFGZ16(ZN16B)-12 series indoor AC HV Vacuum Circuit Breaker with disconnector is the product researched and developently by our company, and its performance meets requirements of national standard GB 1984-2003 HV AC Circuit Breaker and international standard IEC 62271. It has advantages of obvious isolating fracture, long electrical endurance, availability for frequent operation, small overall dimensions and simple, reliable "five-prevention" interlock of cabinet, ect. The product includes CTE2 two-level drive spring Operation Mechanism self-developed by us and awarded with multiple national invention patents. It acts simply and reliably. It has two functions: manual and electric functions and it can realize the remote control.


                         



Model Specification


Characteristics
     ---obvious isolating fracture
     ---long electrical endurance
     ---availability for frequent operation
     ---small overall dimensions
     ---simple, reliable "five-prevention" interlock of cabinet

Main Techincal Parameters

Serial No.	Item	Unit	YFGZ16-12
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current	A	630; 1250
4	Rated short-circuit breaking current of circuit breaker	kA	25
5	Rated short-circuit making current	kA	50;63
6	Rated  peak withstand current	kA	630
7	Rated short-time withstand current   ---Circuit breaker(including disconnector)                                                                  ---Earthing switch	kA/s	25/4 25/2
8	1 min power-frequency withstand voltage (peak) to earth,phase-to-phase,vacuum fracture/ isolating fracture	kV/kV	42/48
9	Full-wave lightning impluse withstand voltage  (peak) to earth,phase-to-phase,vacuum fracture/ isolating fracture	kVA	75/85
10	Main loop resistance	μΩ	≤90;≤60
11	Rated breaking current of single capacitor bank	A	400
12	Mechanical life	Time	10000
13	Clearance between open contacts	mm	9±1; 10±1
14	Overtravel(compression length of contact spring)	mm
15	Gross thickness of contact wear	mm	3
16	Average opening speed	m/s	0.75-1.25
17	Average closing speed	m/s	0.5-0.8
18	Rated contact pressure	N	2000±200
19	Contact closing bounce time	ms	≤2
20	Three-phase opening and closing asynchronization	ms	≤1
21	Inter-pole center distance	mm	210±3
22	Distance between live parts and of phase to earth	mm	≥125
23	Closing operation torque of vacuum arc-extinguishing chamber	N.m	≤80
24	Opening operation torque of vacuum arc-extinguishing chamber	N	≤10

   
                                                                       
                

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Product Categories : 12kV Indoor HV load switch