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JN22-40.5 Indoor Grounding Switch
2.Rated Frequency: 50Hz
3.Rated short time withstand current 31.5kA
4.Rated withstand current (peak):80 kA
5.Installation method: Center-mounted hardcart or fixed cabinet
6.Adapter cabinet: KYN61-40.5 series switch cabinet, specially designed fixed cabinet
7.Products comply with the standards: GB/T1985, GB/T 11022, IEC 60129;
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Product Introduction
JN22-40.5 Indoor Grounding Switch is an advanced product based on the latest technology of grounding switch at home and abroad. After comprehensive assessment, its performance meets the requirements of GB/T1985 "AC high voltage isolation switch and ground switch" and IEC 129 technical standards, suitable for 40.5kV and below AC power system, can be used with KYN61-40.5 standard high voltage switchgear, as ground protection.
Product Specifications
|
No. |
Name |
Unit |
Data |
|
1 |
Rated Voltage |
kV |
40.5 |
|
2 |
Rated Frequency |
Hz |
50 |
|
3 |
Rated short time withstand current |
kA |
31.5 |
|
4 |
Rated withstand current (peak) |
kA |
80 |
|
5 |
Rated duration of short circuit |
s |
4 |
|
6 |
Rated powder frequency withstand voltage |
kV |
95 |
|
7 |
Rated lightning impulse withstand voltage |
kV |
185 |
|
8 |
Mechanical endurance |
Times |
2000 |
Product Advantages
JN22-40.5 Indoor Grounding Switch has many advantages:
Small product size, with a variety of phase spacing
Flexible operation and easy installation
Closing speed and opening speed have nothing to do with manual operation
Simple and compact structure, light weight
Good dynamic and thermal stability, stable up to 4s
The standard structure is manual operation, and can also be equipped with electric operation mode.
Product Applications
JN22-40.5 Indoor Grounding Switch is used to protect the safety of personnel during maintenance in the grounding cabinet of power equipment.
Product Outline Drawing
| Product model | E | L | D |
|
JN22-40.5/31.5-280 |
280 |
684 |
656 |
|
JN22-40.5/31.5-300 |
300 |
724 |
696 |
|
JN22-40.5/31.5-350 |
350 |
824 |
796 |
|
JN22-40.5/31.5-400 |
400 |
924 |
896 |
|
JN22-40.5/31.5-440 |
440 |
1004 |
976 |
Remarks:
1. The phase spacing is 280mm, and the insulation partition between phases needs to be added.
2. The ground switch provides two directional output shafts; The spindle extends to the left for left operation, and extends to the right for right operation.
Secondary Wiring Diagram
1. Under normal circumstances, the grounding switch provides 2 sets of contacts at each closing position;
2. The electric ground switch depends on the actual project.
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