China JN22-40.5/31.5 Indoor Grounding Switch Manufacture and Factory

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JN22-40.5/31.5 Indoor Grounding Switch

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JN22-40.5/31.5 Indoor Grounding Switch

1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln

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Product Details

● JN22-40.5/31.5 series indoor MV earthing switch is researched and developed by XI'AN HV Electric research organization,with advanced design and steady performance, simple structures, simple mounting and adjustment, suitable of electric power system with 40.5KV, Three-phase, AC 50Hz.. Support with KYN□-40.5 and other various kinds of MV switchgear and as earthing protection.
● Standard: IEC 129,IEC 62271-102.

Selection

Operating conditions

1. Ambient temperature:-10~+40℃

2. Altitude: ≤1000m

3. Relative humidity: Day average relative humidity ≤95% Month average relative humidity ≤90% 4. Earthquake intensity: ≤8degree

5. Appliable in the place without corrosive, flammable gas and water place

6. With no frequently intense vibrant place around.

Technical data

Item		Units	Data
Rated voltage		kV	35
Maximum voltage		kV	40.5
Rated short time withstand current		kA	31.5
Rated short circuit withstand time		s	4
Rated short circuit making current		kA	80
Rated peak withstand current		kA	80
Rated	1min power frequency withstand voltage	kV	95
insulation level	Lightning Impulse withstand voltage	kV	185
Central distance between poles		mm	300; 350; 400

Overall and mounting dimensions(mm)

B	H	L
280	750	1180
300	790	1180
350	890	1280
400	990	1374

Order Notes

1. Indicate product specification, rated voltage, thermal stability current, central distance between poles.

2. If need shaft operating mechanism, indicate right operation mechanism or left operation mechanism according to the operation position shows in the drawing above.

3. If need sensors with electric display device, please indicate the display type.

4. Please consult with our company if you have any special request.