The Low voltage cabinet

Overview

Low voltage cabinet is a kind of key equipment for rated voltage AC 1kV and below power distribution system, mainly responsible for power distribution, control, protection and monitoring tasks. It is widely installed between transformers and terminal electrical equipment to ensure the safe, stable and efficient operation of the power system, and is suitable for various fields such as industry, commerce, infrastructure and new energy.

Key Features

1、High Protection Level Design

• IP65-rated enclosure provides complete dustproof and high-pressure water jet resistance, ideal for harsh industrial environments.
• Sealing material made of silicone rubber, withstanding temperatures from -40°C to +120°C and a lifespan of up to 15 years.

2、High-Efficiency Cooling System

• Dual-duct convection cooling technology limits temperature rise to ≤20K, 35% better than industry standards.
• Built-in temperature sensors with ±1°C real-time monitoring ensure long-term stable operation.

3、Exceptional Short-Circuit Withstand Capacity

• Icw=50kA/1s, 150% higher than conventional products, certified by IEC 61439-1.
• Silver alloy contacts provide an electrical lifespan of 100,000 operations, 3x longer than standard materials.

4、Precision Voltage Regulation

• Automatic voltage stabilization range of ±2% with dynamic response time <10ms, ideal for precision manufacturing equipment.
• Built-in active filtering ensures THD <3%, well below the IEEE 519-2014 limit of 8%.

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低电压柜

一、概述

低电压柜是一种用于额定电压交流1kV及以下的电力配电系统的关键设备，主要承担电能的分配、控制、保护及监测任务。它广泛安装于变压器与终端用电设备之间，确保电力系统安全、稳定、高效运行，适用于工业、商业、基础设施及新能源等多种领域。

二、关键特性

1、高防护等级设计

• 采用IP65防护等级外壳，完全防尘且可抵御高压喷水，适用于恶劣工业环境。
• 密封材料选用硅橡胶，耐受温度范围-40°C至+120°C，寿命长达15年。

2、高效散热系统

• 采用双风道对流散热技术，温升控制在≤20K，优于行业标准35%。
• 内置温度传感器，实时监控±1°C精度，确保设备长期稳定运行。

3、超强短路耐受能力

• Icw=50kA/1s，短路耐受能力较常规产品提升150%，通过IEC 61439-1认证。
• 采用银合金触点，电气寿命达100,000次，是普通材料的3倍。

4、精准电压调节

• 自动稳压范围±2%，动态响应时间＜10ms，适用于精密制造设备供电。
• 内置有源滤波功能，THD＜3%，远低于IEEE 519-2014规定的8%上限。