The High-Voltage Ground Switch for Indoor Use serves as a vital safety mechanism in high-voltage power systems, facilitating the grounding and isolation of electrical equipment during maintenance work. Designed for operational voltages ranging from 12kV to 40.5kV, this switch boasts exceptional durability against short-circuit conditions and consistent mechanical reliability. Its compact and user-friendly design allows for straightforward installation and operation, making it an ideal choice for high-voltage switchgear and substations. Complying with stringent international standards, this grounding switch ensures dependable performance and safety in challenging electrical environments.
The High-Voltage Ground Switch for Indoor Use is used in substations and power plants to safely ground high-voltage equipment during maintenance or repairs. It ensures the safe discharge of electrical energy, preventing shock hazards and equipment damage. The switch is designed for reliable operation in indoor environments, with safety features like grounding status indicators and interlocking mechanisms, providing a secure and efficient way to isolate and ground electrical systems during maintenance or upgrades.
High-Voltage Ground Switch is an internationally advanced product developed by advanced technology, whose structure is assembly.
After comprehensive assessment, the performance meets the requirements of GB1985-2004 AC high voltage isolating switch and grounding switch and IEC62271-102:2002, which is applicable to 3-12KV three-phase AC 50Hz power system; it has short-circuit off-off capability to protect other electrical equipment in the switchgear from damage, and can be used with various high voltage switchgear, or as grounding protection during maintenance of high voltage electrical equipment.
Use environmental conditions
1. The altitude shall not exceed 1000m;
2. Surrounding air temperature: upper limit + 40℃, lower limit-25℃;
3. the earthquake intensity does not exceed 8 degrees;
4. The daily average relative humidity shall not be greater than 95%, and the monthly average shall not be greater than 90%;
5. filth grade:11。
INDOOR HIGH VOLTAGE EARTHING SWITCH
Model No. and Description
Main technical parameters
Main technical parameters
unit
data
rated voltage
KV
12
Rated short-time withstand current
KA
40
Rated short-circuit duration
S
4
Rated short-circuit switch-off current
KA
100
Rated peak withstand current
KA
100
Rated insulation level
Power frequency withstand voltage is 1min
KV
Extreme to ground and alternate
42
Lightning peak withstand voltage
75
mechanical life
Times
3000
JNI7-12 (7.2) / 40(2)-100Ground switch shape and installation size
Supporting table
product prototype
Phase spacing A
Support B
principal axis C
pitch-row D
Plateau type ratio sensor height E
JNI 5-12 (7.2) / 31.5-150
150
424
535
396
JNI 5-12 (7.2) / 31.5-165
165
454
565
426
145, below 1,000 m 170, below 2,000 m 185, below 3,000 m 210, below 4,000 m
JNI 5-12 (7.2) / 31.5-210
210
544
655
516
JNI 5-12 (7.2) / 31.5-250
250
624
735
596
JNI 5-12 (7.2) / 31.5-275
275
674
785
646
ordering instruction
1. When ordering the grounding switch, indicate the product model, distance and whether equipped with is equipped (and indicate the display model).
2. Users should indicate the upper and lower positions of the timely moving and static contacts when the earth switch is installed in the cabinet.
3. If users have special requirements, please contact our company.
Factory
Certificate
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