ADR233B
Ref ID : ADR233B/IM/I&S
Rev No. : 05
Page No. : 32 of 479
Note:
For Modular Relay; selection of DI & DO available combinations are as follows:
*20 DI & 12 DO (Available only in Cabinet Details “Modular Version M-14”)
16 DI & 16 DO (Available in Cabinet Details “Modular Version M-14 & M-19”)
24 DI & 24 DO (Available only in Cabinet Details “Modular Version M-19”)
32 DI & 32 DO (Available only in Cabinet Details “Modular Version M-19”)
Applications
ADR233B numerical multifunction relay is designed for Transformer protection, Backup
protection, Machine protection, and shunt reactor protection applications. This Relay is designed
with fast and selective tripping ensures the stability and availability of electrical power system.
Figure 1: Parallel Transformer feeder application
1.4 TECHNICAL SPECIFICATIONS
AC Measuring Input:
I.
Measurement Accuracy Typical ± 2% at In
II.
Nominal Frequency Range
For Current Inputs
50 / 60 Hz ( Selectable in ADR233B Menu)
III.
Frequency measurement
range
45 Hz – 65 Hz
IV.
Phase rotation ABC
52
NGR
52
52 52 52
Transformer
Energization
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