Basler BE1-27 A3EA1JA0S5F Under Voltage Relay

Engine Protection and Metering

Engine protection features include oil pressure and coolant temperature

monitoring, overcrank protection, ECU-specific protection elements,

and diagnostic reporting.

Metered engine parameters include oil pressure, coolant temperature,

battery voltage, speed, fuel level, engine load, coolant level (from ECU),

ECU-specific parameters, and run-time statistics.

The BE1-47N Voltage Phase Sequence Relay provides protection for rotating

equipment from the damaging effects of excessive negative sequence voltage

resulting from phase failure, phase unbalance and reversed phase sequence.

Basler Electric offers a high powered, low-cost digital excitation control system,

the DECS-100. This environmentally rugged product is ideally suited for

controlling the output of brushless excited synchronous generators up to 5MW.

These relays provide a reliable response to protect power system

equipment from adverse voltage conditions.

Product Features & Benefits

• Immediate protection response to extreme voltage conditions

with instantaneous functions.

• Timings can be tailored to the application with individually

adjustable definite, short inverse, medium inverse, or long inverse

timing for each time-delayed under/overvoltage function.

• Flexible pickup is continually adjustable over a wide range.

• Minimized PT costs as a result of low sensing burden.

• Reduced battery load with low burden power supply.

• Accurate, repeatable, and reliable operation.

• Simple HMI provides clear and intuitive settings for easy configuration.

• LED targets provide clear annunciation of status.

• Easily perform in-case system and device tests using test paddles.

The BE3-25 series are synchronizing check relays, also known

as paralleling relays. They are used to ensure that two AC

supplies are synchronized. For a system to be synchronized,

the frequency, phase angle, and voltage must be within preset

limits. The BE3-25-****4 can monitor either utility mains bus

bar and incoming generator, or two generators. 

The BE3-25-****4 offers user adjustment of the reset voltage

from 10 to 30%. This voltage corresponds to 6 to 20 electrical

degrees. The unit compares the input voltage and phase

relationship of the bus bar to that of the generator.

When the signal is within the preset limits, the relay energizes.

The BE3-25-****5 operates as the BE3 25-****4.

but has the additional feature of a dead bus facility.

This enables the relay to energize with a generator supply

only, which is a common requirement when utility mains failure

occurs.

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