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1. Why us

a.We are professional supplier for neutral protection equipment of electric system.

b.Neutral grounding products are regarded as the No. 1 brand of the country.

c.Strong R&D team provides you with the most professional solutions and technical service.

d. Exquisite production process provides you with high-quality production.

e. Strong production capacity ensures timely delivery.

2. Application

This product is used in 6KV~66KV systems whose neutral point is ungrounded to limit the arcing currents during ground faults. It can monitor grounding capacitive current in real time, and make real time tracking and an auto compensatation to the current, then the fault point remnant current is less than 5A and the arc grounding overvoltage is restrained accordingly.

3. Specifications :

a. Ambient temperature: -25℃～55℃

b. Altitude: less than 1000m(if the height exceeds 1,000m, please indicate it when placing orders)

c. Relative humidity: less than 90% (25℃)

d. Location: outdoor/indoor

e. The measurement deviation of capacity current:less than 2％

f. Tuning time：less than 15s

g.Grounding residual current:less than 5A

h. Maximum gears :25

i. Package: Fumigation-free woodiness packaging

4.Advantage

  a.The controller use military rank IPC,and it works reliably and stably.

b. Able to achieve the full range of adjustment within 20%-100% rated current.

c. High-voltage grounding and line-selection modules can be embedded.

d. RS232 and RS485 communications interfaces are equipped.

e. Able to display alarm data.

f. Able to print the grounding information.

5. Structure

a. Three-phase grounding transformer(dry type or oil immersed type). If there is a line connecting the neutral point of the transformer in 35KV,66KVsystem, the grounding transformer is not needed.

b. Arc-suppression coil(dry type or oil immersed)

c. Damping resistor

d. Control cabinet

e. Arrester

f. Vacuum load tap switch

g. Disconnecting switch

6.Schematic

7.Our service

In order to ensure normal operation of product，we carry out “24-hour service”, “advanced service”, “overall process services”,  “life-long service” into the whole process of production, Installation, commissioning and overhaul.

• Pre-sales system : Once the contract be signed, we provide related pre-design and working data and ensure accurate.
• Sale system: In the process of production, we strictly inspect and control the raw materials, components, fittings. Advice the owner takes part in the key processes supervision and listens to the users.
• After-sales: We provide free service during the warranty period (except for the equipment damage caused by human factors and natural force majeure)
• Provide the spare part and quick-wear part below market value