

05/26/2016已淘汰。 PGR-6800泵机保护继电器可为配备了不超过1,000 VAC三相电机的泵机提供保护。电流不超过91 A时无需电流互感器。保护功能包括:过载、相位不平衡、缺相、相序和欠流。PGR-6800泵机保护继电器非常适合于无负载运行可能诱发故障的应用。继电器可以对电机电流进行监测,并在电流降至低于预设值时激活欠流跳闸。无需额外的电平检测器。
- 无需配备CT
- Adjustable trip settings
- 输出触点
- Remote indication
- 过载
- Phase loss/Phase sequence
- Unbalance (current)
- Undercurrent
- No current transformers required for currents up to 91 A
- Adjustable overload trip class setting from 5 to 15 for use with a wide variety of pumps
- A型和B型接地故障输出触点,用于单独的信号和跳闸电路的工作
- Cause-of-trip indication and reset button
- Prevents insulation failures and fires; extends motor life
- Detects unhealthy supply conditions
- 避免因不平衡相造成的过热
- 检测低电平或空载情况