QBZ-ⅡA self-powered microcomputer protection device
QBZ-ⅡA self-powered microcomputer protection device
Key words:
Classification:
Product Center
Distribution Automation Series
Microcomputer Protection Device
Product accessories:
- Description
- Product Parameters
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- Commodity name: QBZ-ⅡA self-powered microcomputer protection device
- Commodity ID: QBZ-ⅡA
1Overview
1.1Scope of Application
QBZ-IIAThe self-powered crisis protection device is a full-range digital protection device powered by CT. It has time overcurrent protection and zero-sequence protection functions, making it particularly suitable for small medium-voltage distribution cabinets with circuit breakers.
1.2Main Performance Features
- Selectable time limit and inverse time characteristic overcurrent fault protection
- Selectable time limit and inverse time characteristic zero-sequence fault protection
- Time-stamped fault records
- Very wide setting range and detailed time setting step size
- RS-485 interface for communication with the main system
- User-defined password
- Chinese LCD display with logically clear menu-style parameter operation
- Directly powered by CT, no other power supply required
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