ZW32 Series

Environmental Conditions

♦ Ambient temperature: -35°C 〜+45°C;

♦ Altitude: <1000m;

♦ Wind speed < 35m/s;

♦ Earthquake intensity: <8 level;

♦ Filthy level: IV;

♦ Installation places: No fire, explosion hazard or serious filthy.

ZW32-12 Technical Parameters and Structure Drawing and Installation

No	Item	Unit	Value
1	Rated voltage	kV	12
2	Rated frequency	Hz	50
3	Rated current	A	630, 1250
4	Rated short circuit breaking current	kA	20, 25
5	Rated peak value withstand current (peak)	kA	40, 50
6	Rated short time withstand current	kA	16, 20
7	Rated short circuit duration	s	4
8	Rated short-circuit closing current (peak)	kA	40, 50
9	Rated operating sequence	Times	O-0.3S-CO-180S-CO
10	Mechanical life(spring type/permanent magnetic type)	Times	10000/30000
11	Rated circuit breaking number	Times	10000
12	Rated short-circuit breaking current breaking times	Times	500
13	Power frequency withstand voltage (1min)(wet) inter-phase, earth(dry) inter-phase, earth/fracture)	kV	34 42
14	Lightning impulse withstand voltage (peak) inter-phase, earth/fracture	kV	75
15	Secondary circuit 1min power frequency withstand voltage except of electronic devices	V	2000
16	Clearance between open contacts	mm	9±1
17	Over travel	mm	2±¹_0.5
18	Opening speed	m/s	1.2±0.2
19	Closing speed	m/s	0.6±0.2
20	Contact closing bounce duration	ms	≤2
21	Inter-phase center distance	mm	340±1.5
22	Three phase closing and opening asynchronism	ms	≤2
23	Each phase conductive circuit resistance	μΩ	≤80
24	Closing time	ms	≤75
25	Opening time	ms	≤50
26	Rated power of energy storage motor	W	40

♦ ZW32-12

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♦ ZW32-12G

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♦ ZW32-12M

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♦ Installation ways

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ZW32-24 Technical Parameters and overall drawing

ZW32-24 Main Technical Parameters

No	Item	Unit	Value
1	Rated voltage	kV	24
2	Rated current	A	630/1250
3	Rated frequency	Hz	50
4	Rated thermal current	kA	20/25
5	Rated short circuit breaking current	kA	20/25
6	Rated dynamic current (peak)	kA	50/63
7	Rated short-circuit closing current (peak)	kA	50/63
8	Thermal stability time	s	4
9	Rated operating sequence	Times	O-0.3S-CO-1 80S-CO
10	1 min power frequency withstand voltage (inter-phase, earth/fracture)	kV	65
	Lightning impulse withstand voltage (peak) (inter-phase, earth/fracture)		125
	Secondary circuit 1min power frequency withstand voltage		2
11	Mechanical life	Times	10000
12	Rated short-circuit breaking current breaking times	Times	30
13	Rated circuit breaking times	Times	10000
14	Contact distance	mm	12±1
15	Over travel	mm	3±1
16	Inter-phase center distance	mm	380±1.5
17	Three phase closing and opening asynchronism	ms	≤2
18	Contact closing bounce duration	ms	≤2
19	Closing time	ms	25 〜80
20	Opening time	ms	23 〜50
21	Average opening speed	m/s	1.1-1.7
22	Average closing speed	m/s	0.5-0.9
23	Main conductive circuit resistance	μΩ	≤80

Technical Parameters

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ZW32-40.5 Technical Parameters and overall drawing

Main Technical Parameters

NO.	Items	Unit	Value
1	rated voltage	kV	40.5
2	1min power frequency withstand voltage	kV	95
3	lightning impulse withstand voltage	kV	185
4	rated frequency	Hz	50
5	rated current	A	630,1250, 1600
6	rated short circuit breaking current	kA	20, 25, 31.5
7	rated short circuit making current (peak)	kA	50, 63, 80
8	rated peak withstand current	kA	50, 63, 80
9	4s withstand current	kA	20, 25, 31.5
10	rated operating sequence	S	O-0.1s-CO-3s-CO-6S-60s recovery
11	rated short circuit current breaking number	times	30
12	mechanical life	times	10000
13	mechanism control voltage	V	AC/DC220
14	secondary circuit 1min power frequency withstand voltage	kV	2
15	clearance distance between open contacts	mm	16±1
16	over travel	mm	4±0.5
17	opening speed	m/s	1.4-1.8
18	closing speed	m/s	0.4-0.8
19	contact closing bounce time	ms	≤5
20	three phase opening/closing asynchronism	ms	≤2
21	closing time	ms	≤100
22	opening time	ms	≤50
23	weight	kg	270

◆ Overall Drawing

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