Basler Electric BE1-51-H5EZ2PB1N0F / BE151H5EZ2PB1N0F Time Overcurrent Relay

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.

The Electronic Manual Voltage Control MVC-300 is a solid-state device en

closed by a wrap-around metal chassis. The MVC-300 is for mounting through

a panel with controls accessible from the front of the panel or can be mounted

behind the panel. A terminal strip located on the rear of the device facilitates

installation. A manual voltage adjust potentiometer and a manual-off-auto

switch are provided on the front face of the unit. For use of a user-supplied

external manual adjust potentiometer or for adjust by a motor operated control

(MOC), order MVC-301. The MVC-300 and MVC-301 are designed to operate

with Basler voltage regulators powered from 120 or 240 volt AC sources up to

320 Hz. The adjustable output of the MVC-300 supplies power to 32. 63 or 125

volt fields at 7 amps.

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.