Schneider Electric Explore the Features of EOCR-iFBZ and Intelligent Digital Relays

Page 11

EOCR-i3BZ/iFBZ/3BZ2/FBZ2

EOCR-i3BZ / iFBZ : Intelligent Digital Over-Current, Earth Fault Relay with built-in ZCT,

EOCR-3BZ2 / FBZ2 : Economic Digital Over-Current, Earth Fault Relay with built-in ZCT

Front face

Power

GR NO Output

7 segment LED display

Reset

Mode selection

Set/Store

Communication

OL NO Output

OL NC Output

Phase indication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LED

LED

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Phase indication

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ampere(A)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L1/L2/L3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Second(s)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bar graph

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

 

70

 

75

80

 

85

90

95

100%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5 digit 7 segment LED display

3 phase currents (In) and the leakage current are displayed every 2 seconds in sequence.

7 segment LED display

Bar graph

 

Mode selection

Reset

Set / Store

it shows the load factor to OC setting value by % % value = (running current/setting current) × 100% Min scale is 65%

if the setting value is the rated motor current, it shows the load factor of the motor.

Current display

Shows the highest current among three phases for oc, Stall, Jam trips. Shows the lowest current among three phases for uc, Ub trips. Shows the lost phase for PL.

Shows the phase and the current during running.

Amp : Ampere. LED is on when a current display.

×10 : Shows the unit changed to 10 times.

Sec : Second. LED is on when a time display.

Power

GR NO Output

Communication

OL NO Output

OL NC Output

11

Image 11
Contents Page Page Bottom hole & terminal type Applications Public institutions EOCR-i3BZ/iFBZ/3BZ2/FBZ2 General FeaturesCommunication function Applicable to i3BZ/iFBZ Operating Condition & Setting Range Operation TimeProtection functions Auxillary functions Specifications Time-current characteristic curve Fail-safe operation Over current and time setting tipsOver current Setting tips in definite TCC mode Alert Operation Pattern #3Bar graph Front faceCurrent display Button Description Phase digital ammeter functionButtons and Setting Sequence Parameter Description Setting sequence and menuCommunication *2 Menu Parameter Description DefaultAlert *1 Control terminals Trip cause indication and fault recordsSingle line Diagram Wiring ExamplesPhase line Diagram Single phase line DiagramDimensions Order Code RS485 bus connection Modbus network settingStandard connection Bus connection through a SCA type junction box Iksan Plant Head Office