Products - CHINA·LONGXI ELECTRIC CO.,LTD.

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Products

FZW32-12/24/40.5 Outdoor HV Vacuum Disconnect Load Break Switch

Summary

FZW32-12/24/40.5 Outdoor AC high voltage disconnect vacuum load break switch is a new product adopts domestic existing mature load break switch production expe rience and overseas advanced technology to design and manufacture. the load break switch is composed of disconnect blade, vacuum interrupter and ope~tion mechanism vacuum extinguishing arc, there are merits as strong extinguishing arc ability， reliable performance, long lifetime, small volume, no explosive danger and no pollution to environment. It accords with standards of IEC62271-103 High voltage switches.

Ambient conditions

1. Altitude:≤1000m;
2. Ambient temperature:-30℃-+400℃;
3. Wind speed:≤34m/s;
4. POllution degree:≤IV;
5. Earthquake intensity:≤8 degree;
6. lce thickness:≤10mm.

Model

Technical specification

No.	Item			Unit	Data
1	Rated voltage			kV	12/24	40.5
2	Rated current			A	630,1250
3	Rated power frequency			Hz	50/60
4	Rated peak withstand current			kA	50,63
5	Rated short-time withstand current			kA	20,25
6	Rated short-circuit duration			s	4
7	Rated active load breaking current			A	630,1250
8	Rated loop breaking current			A	630,1250
9	Rated cable charging current			A	10
10	5%rated active load breaking current			A	31.5,63
11	Rated power transformer breaking current			kVA	1250
12	Rated short-circuit making current			kA	50,63
13	Main loop resistance			μΩ	≤90	≤100
14	1min.power frequency withstand voltage	Dry	phase to phase phase to earth	kV	42/50	95
			across open contacts	kV	49/60	115
		Wet	phase to phase phase to earth	kV	30/40	85
15	Lightning impulse withstand voltage(peak)		phase to phase phase to earth	kV	75/125	185
			across open contacts	kV	85/145	215
16	Mechanical life			Times	10000	10000
17	Three phase closing asynchronous			ms	≤5	≤5
18	Direction rotating of making contact blade			mm	≤2	≤2
19	Main contact blade pressure			N	300±30	420±42
20	Distance between electric Darts and phase to earth			mm	≥200	≥380
21	Rated operating moment			Nm	≤300	≤300

LBS with vacuum arc extinguish chamber

No.	Item	Unit	Data
1	Contact distance	mm	5±1	18±1
2	Average breaking speed	m/s	1.1±0.2	1.6±0.2
3	Three phase breaking asynchronous	ms	≤5	≤5
4	Three phase making asynchronous	ms	≤5	≤5

Structure feature