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BUENO ELECTRIC
BUENO ELECTRIC
BUENO ELECTRIC
BUENO ELECTRIC
Contact: [email protected]
Fax: +86-25-51816989
1
1 Brief Introduction
BEPR- 822U Digital Asynchronous Motor Protection is applicable for 3kV
，
6kV
，
10kV non-direct-grounding
system serve, as protection for the internal faults, overloadings,etc. of the large and middle asynchronous motors.
The basic configuration of this protection would be two CPU modules, protection and control unit composed
of 32-bit microprocessor, which is configured with the bulk RAM and Flash Memory, with strong ability of data
processing, logic computation and information storage. Another CPU is the man-machine interface unit composed
of single chip computer, whose bus is not out of the chip. The two CUP modules are mutually independent, with
no interrelation. Each protection function and automation function would be realized by software.
1) Features:
All English character LCD display, and clear and easy man-machine interface.
The precision of the selected measuring modules (including KWH metering ) can reach to the class
0.5.
To provide access to the accumulated pulse-degree side.
High speed Ethernet interface is provided to integrated the IEC 870-5-103 standard communication
protocol.
High precision clock chips are used. The GPS time checking circuit is provided to realize the clock
synchronism of the whole system.
High speed Ethernet interface is provided to integrated the IEC 870-5-103 standard communication
protocol.
The core of CPU, the protection functional module is the powerful 32-bit micro- processors with large
capacity RAM and Flash Memory. They are powerful to process data, perform logic calculation and
store information. 8 to 50 recorded reports and 1000 events can be recorded. These information will
not be lost even in power interruption.
2) Complete protection function configuration
Table 1 Type and function configuration list of these series products
Function
BEPR- 822U
Current instantaneous protection
√
Over-current protection (definite-time limit or
inverse-time limit)
√
Negative sequence over-current (definite-time limit or
inverse-time limit)
√
Overheat protection
√
Overload protection
√
