HM-ZN Intelligent Low-voltage Reactive Power Compensation Device

Product Overview

The HM-ZN series intelligent integrated power capacitor compensation device (hereinafter referred to as the intelligent capacitor) is composed of an intelligent measurement and control unit, a synchronous zero-crossing switch, an intelligent protection unit, a networking unit, a display unit and two (△ type) or one (Y type) low-voltage self-healing power capacitors, forming an independent and complete intelligent reactive power compensation system. The product can be used standalone or networked with multiple units to form a compensation system;

It can be used together with the ANJ series intelligent reactive power measurement and control device, or directly form a compensation system via secondary current transformers;

It supports three-phase compensation as well as mixed three-phase and split-phase compensation. The HM-ZN series intelligent capacitor is applied in low-voltage power systems with low harmonic content, operating reliably to improve the power factor, reduce line losses and improve power quality. The HM-ZN intelligent low-voltage reactive power compensation device supports three-phase compensation as well as mixed three-phase and split-phase compensation and multi-unit networking, suitable for low-voltage distribution systems with low harmonic content.

Features

• All-in-one design
• Intelligent
• Intelligent control technology
• Synchronous zero-crossing switching technology
• Intelligent networking function
• High-quality power capacitors
• LCD display interface
• Fault locating technology

Main Technical Parameters

• Power supply conditions

(1) Rated voltage: AC 220 V/380 V; (2) Voltage deviation: ±20% of rated voltage; (3) Voltage waveform: sinusoidal, with total distortion not exceeding 5%; (4) Operating frequency: 50 Hz; (5) Power consumption: <0.5 W. The clearance and creepage distances, insulation strength, safety protection, short-circuit strength, and protection of sampling and control circuits all comply with the corresponding clauses of the power industry standard DL/T842-2003 “Technical requirements for low-voltage shunt capacitor installations” and GB/T22582-2008 “Power factor compensation devices using low-voltage power capacitors”. (1) Zero-crossing switching offset: ≤2.5°; (2) Zero-crossing inrush current: ≤2.5 × rated current; (3) Voltage impulse withstand: ≥AC 3000 V (DC 5000 V); (4) Current impulse withstand: ≥100 × rated current. (1) Reactive capacity: ≤(30+30) kvar per unit (three-phase), ≤30 kvar (split-phase); (2) Networking: ≤20 units without a controller, ≤42 units with a controller. (1) Electrical switching life: ≥1,000,000 operations; (2) Control accuracy: ****; (3) Capacitor capacity switching attenuation: ≤0.1% per 10,000 operations.

• Electrical safety indicators
• Synchronous zero-crossing switch technical indicators
• Reactive power control parameters
• Reliability parameters

Type Designation

Outline & Installation Dimensions

Related Products

Capacitors of the same series and other types available:

• BSMJ 0.4-15-3 Self-healing Low-voltage Shunt Power Capacitor
• BSMJ Split-phase Compensation Capacitor