Varieties and selection methods of intelligent low-voltage motor protectors

1 Overview

The intelligent motor protector has protection functions such as overload, phase failure, unbalance, underload, grounding / leakage, and locked rotor. The products include ARD2 simple series and ARD3 advanced series. The ARD protector can form a motor control and protection unit with electrical components such as contactors and motor starters. It has functions such as remote automatic control, direct on-site control, panel indication, signal alarm, and field bus communication. It can be widely used in the power distribution field of coal mine, petrochemical, smelting, electric power, construction and other industries.

2. Major domestic brands and models

There are many domestic manufacturers and models of intelligent low-voltage motor protectors. The main common products are: Zhenjiang Moeller MCC3000 Motor Control Center; Shuanghua Electric WJB-02, WJB-10, WJB-50, WJB-200, WJB-300 / 5. WJB-400 / 5, WJB-500 / 5, WJB-600 / 5, WJB-ZT, WJB-ZTZ, WJB-ZTQL, WJB-ZTYL, WJB-ZL, WJB-FT, WJB-FTZ, WJB- FTQ, WJB-FTY, WJB-F, WJB-FTL, WJB-FTZL, WJB-FTQL, WJB-FTYL, WJB-FL, JDB-YE intelligent monitoring and protection device, JDB-LQ intelligent monitoring system; Zhejiang Tianxin DZJ- A, DZJ-B, DZJ-D, DZJ-M motor protection device; Ningbo Haishu Julong UL-E2, UL-E20; Shanghai Ankerui ARD2-6.3A, ARD2-25A, ARD2-100A, ARD2-250A, ARD2-800A, ARD3-6.3, ARD3-25, ARD3-100, ARD3-250, ARD3-800 intelligent low-voltage motor protector; Yatel M60-1S, M60-3S, M60-1M, M60-1P low-voltage motor intelligence Protection controller; Zhuhai Paino PMAC8000 intelligent low-voltage motor protector; Jiangyin Dongrui PD204Z-LEP low-voltage motor protection device; Dandong Huatong PDM-810MRT, PDM-810MR, PDM-810MRC motor protection controller; Changshu switch factory CD4-100R1 , CD4-100R2, CD4- 100R3, CD4-200S1, CD4-450T1; Heyuan Yada YD2300A, YD2300B1 / YD2300B2 intelligent motor protection device; Kunming Sunshine PM98E50-9, PM98E50-2 intelligent AC motor protector; Shenzhen CLP PMC-550 low voltage motor protection measurement and control device ; Siemens 3UF50, 3UF51, 3UF52, 3UF5 SIMOCODE-DP system motor protection and control; Suzhou Wanlong ST501, ST502, ST503, ST504, ST505, ST500M, ST500H, ST505M body, ST522, ST522B display module, ST500 series intelligent motor control Motor, ST500L, ST500L + ZT30 motor protector, ST500E, ST500E-2A ~ 6.3A, ST500E-25A, ST500E-100A intelligent motor protection device; Shanghai Huajian LM-300, LM-310, LM-500F, LM- 510F, LM-502F, LM-503F, LM-511F, LM-512F, LM-513F microcomputer motor protection monitoring device; Jiangsu Jinzhi (Nanjing Dongda Jinzhi) LPC1-530, LPC2-530 low voltage motor comprehensive protection monitoring and control device ; Intelly MPD100-D, MPD100-M motor protection controller; Baoding Uninet UNT-MMI intelligent MCC control protector management device; DeWitt HT-6900 series low-voltage motor protector; Uninet UNT-MMII; Jiang Taihua AS-11, AS-12, AS-13, AS-13A, AS-22, AS-21B, AS-23, AS-24, AS-31, AS-32, AS-33, AS-34, AS -35 etc.

3. Meet the standard

l GB14048.1-2000 Low-voltage switchgear and control equipment general

l GB14048.4-2003 Low-voltage switchgear and control equipment electromechanical contactors and motor starters

l GB / 14048.5-2001 low-voltage switchgear and control equipment control circuit appliances and switching elements, part 1: electromechanical control circuit appliances

l GB / T17626.4-2006 Electrical fast transient pulse group immunity test

l GB / T17626.5-2006 surge (shock) immunity test

4. Applicable environment

Ø Working temperature: -10 ℃ ~ + 55 ℃

Ø Storage temperature: -20 ℃ ~ + 65 ℃

Ø Relative humidity: 5% ~ 95% without frost

Ø Altitude: ≤2500m

Ø Pollution degree: Level 2

Ø Protection level: IP20

Ø Installation category: Class III

Ø Application occasions: coal mine, petrochemical, smelting, electric power, shipbuilding, civil construction and other fields

5. Product specifications and functions

5.1 ARD2 series intelligent motor protector