Ningbo Richge Technology Co., Ltd.
Ningbo Richge Technology Co., Ltd.
Products
Indoor High-Voltage AC Ground Switch
  • Indoor High-Voltage AC Ground SwitchIndoor High-Voltage AC Ground Switch

Indoor High-Voltage AC Ground Switch

Model:JN15 - 12(7.2)/40-100

The indoor high-voltage AC ground switch is a critical safety component in high-voltage systems, designed to disconnect and ground electrical equipment during maintenance, ensuring operator and equipment safety. Suitable for voltage levels from 12kV to 40.5kV, it offers robust short-circuit resistance and stable mechanical performance. Its streamlined design allows for easy installation and smooth operation, making it well-suited for use in high-voltage switchgear and electrical substations. Engineered to meet international safety and performance standards, this grounding switch delivers reliable protection in various power system applications.

main application

The Indoor High-Voltage AC Ground Switch is used in substations and power plants to safely ground high-voltage equipment during maintenance or repairs. It ensures safe discharge of electrical energy, preventing hazards like electric shock or equipment damage. The switch is essential for isolating and grounding circuits before work begins, enhancing safety for technicians. Designed for reliable operation in confined spaces, it features robust materials, grounding status indicators, and safety interlocks, ensuring safe and efficient grounding in high-voltage systems.

Indoor High-Voltage AC 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) / 40-100Ground 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) / 31.5-165 165 454 565 426 140, 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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