High voltage Solid insulated ring network cabinet medium voltage switchgear

Model: YFAS-12

Description:

General
Technical Parameter

The YFSI-12 solid core unit and solid cabinet are a new generation of fluorine free and environmentally friendly ring network switchgear developed to replace traditional SF6 gas insulated ring network swithgear. They have the characteristics of small size, complete solutions, modularization, and serialization. The product is suitable for rated voltage 12KV and rated frequency 50HZ power supply systems, mainly used for ring network power supply or dual radiation power supply sterns, and can also be used for terminal power supply, such as outdoor prefabricated box substations, As the control and protection of electrical energy; The product performance complies with the provisions of national standards and industry standards such as GB/ T11022 "Common Technical Requirements for High Voltage Switchgear and Control Standards", GB19S4 "High Voltage AC Circuit Breakers", G81985 "High Voltage AC lsolation and Grounding Switches*, GB3906 *3.6kV~40.5kV AC Metal Enclosed Switchgear and Control Equipment", IEC298, etc; The YFSI-12 solid core unit adopts a three- phase split structure, with the vacuum arc extinguishing chamber and conductor of the primary main circuit firmly sealed in epoxy resin. The isolation switch is located in a closed chamber formed by epoxy resin, which has strong insulation performance and high protection level; In view of the dificultieses in local discharge control of epoxy resin insulated parts with complex structure, our company has carefully optimized the shape and internal structure of the pole. The vacuum interrupter is coated with high- -quality liquid silia gel, the surface of the primary conductor is sandblasted and coated with special adhesive to achieve a good combination of different materials and epoxy resin. At the same time, vacuum mixing，APG pressure gel technology and strict and meticulous production process are used, Ensure that the density of the solid sealing pole material is high, the exhaust is thorough, there are no impurities or pores inside, the electric field distribution is uniform, and the partial discharge amount The YFSI-12 solid state cabinet has the characteristics of complete primary scheme, strong adaptability, and high standardization. Among them, the upper isolation scheme meets the standardized design customization scheme of the 12kV ring network cabinet of the State Grid. The lower isolation and combination electrical scheme of the same series can also meet the needs of the majority of conventional expansion projects. Moreover, the upper and lower isolation and combination electrical scheme cabinet body dimensions are consistent, and can be used in any combination, in conjunction with PT, isolation, breaking, etc The comprehensive coverage of the 12kV solid insulation ring network cabinet can be achieved by upgrading and measuring units; The basic extermal dimensions of YFSI- -12 solid cabinet are 420 wide X 875 deep X 1700 high, with a minimum cabinet width of 400mm.
Normative references
Solid insulation ring network switchgear involves many standards, and only the directly referenced standards are listed here. The indirectly referenced standards are no longer listed one by one. If the version number is not marked, it indicates that the product reference is the latest valid version. O GB 1984 High Voltage AC Circuit Breakers O GB 1985 High voltage AC disconnectors and grounding switches O GB 3804 3.6- -40.5kV High Voltage AC Load Switch O GB 3906 Rated Voltage 3.6kV~40.5kV AC Metal Enclosed Switchgear and Control Equipment O GB/T3309 Mechanical Testing of High Voltage Switchgear at Room Temperature O GB 16926 AC High Voltage Load Switch Fuse Combination Electrical Appliances O GB/T16927.1 High voltage testing techniques - Part 1: General testing techniques O GB/T11022 Common Technical Conditions for High Voltage Switchgear and Control Equipment Standards O DL/T158612KV Solid Insulated Metal Enclosed Switchgear and Control Equipment O DL 404 Technical Conditions for Ordering Indoor AC High Voltage Switchgear
Normal operating environment conditions
O Altitude S 3000M; O Environmental temperature: minimum -25°C ;Up to 40 °C O Environmental relative humidity: The daily average value shall not exceed 95%, and the monthly average value shall not exceed 90%; O There should be no fire or explosion hazards in the environment, no chemical corrosive or combustible gases, water vapor, or other obvious serious pollution, and no frequent violent vibration; O Seismic resistance: 8 degrees; O When the usage conditions are different or there are special requirements, such as when the product is used in areas with an altitude of 2000M or above, the ordering party should negotiate with the manufacturer about the factory conditions, confirm the altitude correction coefficient, and require relevant factory inspection reports for verification; When the ambient temperature exceeds the applicable range of the product, the user should consider the impact of the rated current carrying capacity of the switchgear and take necessary measures to improve the ambient temperature.
Upper isolation
Power transmission 1. The gap at the upper end of the cable chamber door①is hung in the slot of the door interlock②.Let the lower door pull down the door interlock ②,unlock the baffle of the grounding operation hole④, and dose the cable chamber door and the mechanism room door; 2. Press the opening button⑥to open the circuit breaker (the opening indication 10 of the circuit breaker shows opening), and the lower door interlock 12 locks the lower door; 3. Insert the handle into the grounding switch operation hole④and turn it clockwise to open the grounding switch (grounding indication ⑤shows open), and the lower door interlock②locks the lower door; 4. Insert the handle into the isolating switch operating hole 11 and turm it dockwise to close the isolating switch (the isolating indicator shows closed); 5. Insert the operating handle into the energy storage operation hole⑧and turm it clockwise until the energy storage is completed (the energy storage indicator⑨shows the stored energy); 6. Press the closing button⑦to close the circuit breaker (the circuit breaker indicator 10 shows that it is dosed); Power failure 1. Press the opening button⑥to open the circuit breaker (the circuit breaker indication 10 shows opening); 2. Insert the operating handle into the isolating switch operating hole 11, turn it anticlockwise, and separate the isolating switch (the isolating indicator⑤shows minute); 3. Confirm that the lower end is not electrified, insert the operating handle into the grounding switch operating hole④, turn it counterclockwise, and dose the grounding switch (grounding indicator ⑤shows closed); 4. Affter the circuit breaker stores energy, press the circuit breaker closing button ⑦to close the circuit breaker (the circuit breaker closing indicator 10 shows that it is closed); Unlock the cable room door interlock 12; 5. The cable room door①can be opened; (Confirm that the lower end of the cable is not live before opening the lower door); Note: If the switch is missing the corresponding parts, the corresponding operation will be omitted.
Lower Isolatlon
Power transmission 1. The gap at the upper end of the cable chamber door①is hung in the slot of the door interlock②.Let the lower door pull down the door interlod<②，unlock the baffle of the grounding operation hole④, and close the cable chamber door and the mechanism room door; 2. Press the oi the circuit door; 3. Insert the handle into the grounding switch operation hole④and turn it clockwise to open the grounding switch (grounding indication⑤shows open), and the lower door interlock②locks the lower door; ' 4. Insert the handle into the isolating switch operating hole 11 and turn it clockwise to dose the isolating switch (the isolating indicator 10 shows dosed); 5. Insert the operating handle into the energy storage operation hole⑧and turn it clockwise until the energy storage is completed {the energy storage indicator⑨shows the stored energyl; 6. Press the closing button⑦to close the circuit breaker (the circuit breaker indicator 10 shows that it is closed); Power failure 1. Press the opening button⑥to open the circuit breaker (the circuit breaker indication 10 shows opening); 2. Insert the operating handle into the isolating switch operating hole 11, turn it anticlockwise, and separate the isolating switch (the isolating indicator () shows minute); 3. Confim that the lower end is not eletrified, insert the operating handle into the grounding switch operating hole④, turn it counterclockwise, and close the grounding switch (grounding indicator⑤shows closed); 4. After the circuit breaker stores energy, press the circuit breaker dosing button⑦to dose the circuit breaker (the circuit breaker dosing indicator 10 shows that it is dosed); Unlock the cable room door interlock 12; 5. The cable room door①can be opened; (Confirm that the lower end of the cable is not live before opening the lower door); Note: If the switch is missing the corresponding parts, the corresponding operation will be omitted.
Drawing

Overall dimension

Overall dimension

Overall dimension

Overall dimension

Environmental

YFSIV-12/630-25 solid insulated vacuum circuit breaker/YFSI- -12V/630- -25 solid insulated vacuum circuit breaker cabinet

NO	projecl	Company	data
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current	A	630
4	Rated short-circuit breaking current	kA	25
5	Rated short-circuit making current (peak)	kA	63
6	Duration of rated short-time withstand current	S	4
7	Rated short-time withstand current	kA	25
8	Rated peak withstand current	kA	63
9	Rated cable charging breaking current	A	25
10	Rated short time power frequency withstand voltage (phase to phase,ground)	kV	42
11	Rated short-time power frequency withstand voltage (fracture)	kV	48
12	Peak value of rated lightning impulse withstand voltage (phase to phase and ground)	kV	95
13	Rated lightning impulse withstand voltage peak (fracture)	kV	110
14	Rated operation sequence		0-0.3s-c0-180s-c0
15	1.2ur Partial discharge test 1.2ur	pC	<20
16	Main circuit resistance	μΩ	<150
17	Temperature rise test		1.1 times*630A
18	Mechanical life (arcuit breaker M2/disconnector Ml/earthing switch Mll		10000 second/3000 second/3000 second
19	Classification according to electrical life		E2
20	Classification according to switching capacitive current		C2
21	Rated voltage of energy storage motor	W	75
22	Rated voltage of energy storage motor	V	DC48V/DC110V/DC220V/AC220V (85-110%)
23	Energy storage time	S	<12
24	Rated voltage of opening and closing coils	V	DC48V/DC110V/DC220V/AC220V
25	Rated current of opening and closing coils	A	1.5-2.6
26	Contact travel (open distance)	mm	9±1
27	Contact travel (overtravel)	mm	4±1
28	Closing contact bounce time	Ms	<3
29	Interpolar periodicity	ms	<2
30	Average opening speed (first 6mm)	m/s	1.1±02
31	Average closing speed (last 6mm)	m/s	0.6±0.2

YFSIC-12/630- -25 solid insulated vacuum load switch/YFSI-12C/630- -25 solid insulated vacuum load switch cabinet

NO	project	Company	data
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated curren	A	630
4	Rated Active load breaking currenl	A	630
5	Rated closed-loop breaking current of distribution line	A	630
6	Rated cable charging breaking curren	A	40
7	Rated line charging breaking current	A	1
8	Rated peak short-circuit making current	kA	63
9	Rated earth fault breaking current	A	3L5
10	Cable charging breaking current under rated ground fault condition	A	69.3
11	Line charging breaking current under rated ground fault condition	A	L73
12	Duration of rated short-time withstand current	S	4
13	Rated short-time withstand current	kA	25
14	Rated peak withstand current	kA	63
15	Rated short time power frequency withstand voltage (phase to phase,ground)	kV	42
16	Rated short-time power frequency withstand voltage (fracture)	kV	48
17	Peak value of rated lightning impulse withstand voltage phase to phase and ground)	kV	95
18	Rated lightning impulse withstand voltage peak (fracture)	kV	110
19	Partial discharge test 1.2ur	pC	<20
20	Main drcuit resistance	μΩ	<150
21	Temperature rise test		1.1 times*630A
22	MIMechanical life (load switch M2/disconnector Ml/earthing switch Ml		10000 second/3000 second/3000 second
23	Classification according to electrical life		E3
24	Classification according to mechanical life		M2
25	Rated voltage of opening and closing coils	V	DC48V/DC110V/DC220V/AC220V
26	Rated current of opening and closing coils	A	1.5-2.6

YFSIC-12/630-25 solid insulated vacuum load swith/YFSl- -12C/630- 25 solid insulated vacuum load switch cabinet

NO	project	Company	data
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current	A	125
4	Rated short-circuit breaking current	kA	31.5
5	Rated peak short-circuit making current	IcA	80
6	Rated transfer current	A	1500
7	Rated transfer current	A	3150
8	Rated short time power frequency withstand voltage (phase to phase,ground)	kV	42
9	Rated short-time power frequency withstand voltage (fracture)	kV	48
10	Peak value of rated lightning impulse withstand voltage phase to phase and ground)	kV	95
11	Rated lightning impulse withstand voltage peak (fracture)	kV	110
12	Main circuit resistance (excluding fuse)	μΩ	<400
13	Temperature rise test		125A
14	Mechanical life (load switch M2/disconnector Ml/earthing switch MlD		10000 second/3000 second/3000 second

High voltage Solid insulated ring network cabinet medium voltage switchgear

Normative references

Normal operating environment conditions

Upper isolation

Lower Isolatlon

Drawing

Overall dimension

Overall dimension

Overall dimension

Overall dimension

Environmental

Yufeng Electric Co.,LTD

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