Installation Instructions

● Upon receiving the device, the user should first conduct an unpacking inspection. Check if any components are damaged, if there are any broken, disconnected, or loose wires, if all screws are tightened, and if all accompanying documents, accessories, and attachments are complete. Once confirmed without any issues, proceed to move the device to the installation base.

● Once the device is positioned on the installation base, adjust it to ensure that the cabinet is perpendicular to the base plane, and then secure it with bolts. Subsequently, firmly connect the system busbar with the device's horizontal busbar (or via cables), and simultaneously connect the zero line of the surge arrester with the system neutral line. Use copper wires with a diameter not less than 50mm² to connect the grounding device of the cabinet to the grounding part of the system.

● The current sampling signal of the controller inside the device should be taken from the current transformer of phase L1 of the main incoming cabinet (or the feeder line requiring compensation). The current transformer should be selected with an accuracy level of 0.5 and a rated secondary capacity of not less than 10VA. Use multi-strand insulated copper wires with a cross-sectional area not less than 2.5mm² to connect from the current transformer to the corresponding terminals of the device.

Ordering Instructions

● Users should first calculate the required reactive power compensation based on the active power capacity (P, in KW), the power factor before compensation (cosφ1), and the power factor after compensation (cosφ2) using the following formula: Q = P × tan(cos⁻¹φ2 − cos⁻¹φ1)

● Then, based on the actual load requirements, select the capacity of each step of the device. The preferred values for each step capacity are 10, 15, 20, 30, 45, and 60 kilovolt-amperes reactive (kvar). The manufacturer will determine the number of compensation cabinets based on the total required capacity and the selected capacity per step as per the user's needs.

Maintenance Instructions

● Before performing maintenance on the device, it is essential to isolate the main circuit from the power grid. Additionally, the capacitors in the device must be discharged.

Operating Environment Requirements

● Ambient temperature: -5°C to +40°C

● Relative humidity: Not exceeding 90% (at 20°C)

● Altitude: Not exceeding 2000m

● Pollution degree III

● Overvoltage category IV

● Voltage fluctuation at the installation site should not exceed ±10% of the rated operating voltage. Total harmonic distortion of the power supply voltage should not exceed 5%.

● If not otherwise specified, the temperature range during transportation and storage of the device should be between -25°C and +55°C, and it should be able to temporarily reach +70°C within a short period (not exceeding 24 hours).

● The device, after being subjected to the above extreme temperatures while not in operation, should not suffer any irreversible damage. Subsequently, it should operate normally under specified normal conditions of use.

● If transportation and storage conditions do not meet the requirements, users should consult with the manufacturer.