ZFN16-12 series indoor AC high-voltage vacuum load switchDetailed product description：

Overview

The ZFN16-12 indoor AC high-voltage load switch fuse combination (hereinafter referred to as the "series switch") is independently designed and developed by our factory. The performance meets the requirements of international standards GB3804-90 "3-63KV AC High Voltage Load Switch" and IEC420 "AC High Voltage Load Switch Fuse Combination Apparatus" (1990 edition) and national standards (draft for approval), and has the advantages of safe and reliable breaking, long electrical life, frequent operation, basically no maintenance required when breaking and shifting current, and obvious isolation fracture. The load switch fuse combination device also has the function of protecting transformers from overload and preventing equipment from running in phase loss.

purpose

The ZFN16-12 series switch is suitable for use in power grids with rated voltage of 6-12KV three-phase AC 50Hz, as a means of breaking load current, overload current, and short-circuit current. It is particularly suitable for places that require oil-free, non maintenance, and frequent operation. This product can be used with CS6-I type operating mechanism and CS □ manual operating mechanism.

ZFN16-12 series indoor AC high-voltage vacuum load switch model meaning


Environmental conditions for use
a、 Altitude not exceeding 1000 meters;
b、 Upper limit of ambient air temperature+40oC lower limit -25oC;
c、 Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
d、 The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc;
e、 No frequent vigorous exercise;

serial number	name	unit	parameter
one	rated voltage	KV	twelve
two	Maximum operating voltage	KV	twelve
three	rated frequency	Hz	fifty
four	rated current	A	six hundred and thirty
five	Rated Active load breaking current	A	six hundred and thirty
six	Rated closed-loop breaking current	A	six hundred and thirty
seven	5% rated active load breaking current	A	thirty-one point five
eight	Rated number of cable charging disconnections	A	ten
nine	Rated capacitor breaking current	A	four hundred
ten	Rated no-load transformer breaking current	A	6000KVA transformer no-load current
eleven	1-minute power frequency withstand voltage (effective value) to ground, phase to phase, vacuum break/isolation break	KV	42/48
twelve	Full wave lightning impulse withstand voltage (peak) to ground, phase to phase, vacuum break/isolation break	KV	75/85
thirteen	Rated short-time withstand current (thermal stability)	KV/S	20/3
fourteen	Rated peak withstand current (dynamic stability)	KA	fifty
fifteen	Rated short-circuit closing current	KA	fifty
sixteen	Rated current breaking times	time	ten thousand
seventeen	mechanical life	time	ten thousand
eighteen	Allowable cumulative thickness of contact wear	mm	three
nineteen	Opening and closing operation torque (force)	Nm/(N)	175(350)

2. The technical parameters of the load switch fuse combination device are shown in the following table:

serial number	name	unit	parameter
one	rated voltage	KV	twelve
two	Maximum operating voltage	KV	twelve
three	rated frequency	Hz	fifty
four	Maximum rated current of fuse	A	one hundred and twenty-five	two hundred
five	Rated transfer current	A	two thousand	three thousand one hundred and fifty
six	The opening time of the fuse triggered switch	ms	35±5
seven	Rated short-circuit breaking current (expected effective value)	KA	thirty-one point five
eight	Rated short-circuit closing current (expected peak)	KA	eighty
nine	1-minute power frequency withstand voltage (effective value) to ground, phase to phase, vacuum break/isolation break	KV	42/48
ten	Full wave lightning impulse withstand voltage (peak) to ground, phase to phase, vacuum break/isolation break	KA	75/85
eleven	Fuse impactor output energy	J	2-5

3. Technical parameters of fuses for combination electrical appliances (see table below)

model	rated voltage	Fuse rated current	Rated breaking current	Rated current of melt
SDLAJ	twelve	forty	fifty	6.3,10,16,20,25,31.5,40
SFLAJ		one hundred		50,63,71,80,100
SKLAJ		one hundred and twenty-five		one hundred and twenty-five

4. Technical parameters for assembly and adjustment of vacuum arc extinguishing chamber (see table below)

serial number	project	unit	parameter
one	contact gap	mm	8+1
two	Contact profile	mm	3+1
three	Average closing speed	m/s	0.6±0.2
four	Average opening speed	m/s	1±0.2
five	Non synchronous opening and closing of three-phase contacts	ms	≤2
six	Contact closing bounce time	ms	≤2
seven	Distance between charged bodies and relative ground	mm	≥125
eight	Main circuit resistance of upper and lower brackets	μΩ	≤60

Outline drawing

1. Closing spring
2. Operating mechanism
3. Guiding sleeve
4. Adjust the screw sleeve
5. Opening buffer pad
6. Opening buffer spring
7. Bracket
9. Insulators
10 upper brackets
11. Vacuum arc extinguishing chamber
12. Insulation holder
13. Lower bracket
14 Insulated push-pull rod

1. Closing spring
2. Operating mechanism
3. Guiding sleeve
4. Adjust the bolt
5. Opening buffer pad
6. Opening spring
7. Bracket
8. Insulators
9. Isolation knife
10. Upper bracket
11. Vacuum arc extinguishing chamber
12. Insulation holder
13. Lower bracket
14. Insulated push-pull rod
15. Melting tube
16. Screw
17. Nut
18. Grounding knife

1. Combination appliance
2. Φ 20 steel pipe (to be provided by the user)
3. Bend connection
4. Operating mechanism
5. Operating handle
6. Connect