Protection Releases Pr332/P And Pr333/P; Introduction; Overview; Specifications - ABB Tmax T7 Operating Instructions Manual

3.

PROTECTION RELEASES PR332/P AND PR333/P

3.1. Introduction

PR332/P and PR333/P possess many common characteristics:
- Graphic interface: display, push-buttons and interactive menu.
- HW: connectors and accessory modules.
- SW: basic protection and measuring functions.
Unless different indications are given, the functions and characteristics described in the following chapters are common to both
models.

3.2. Overview

PR332/P and PR333/P are available in 7 versions, all compatible with various different internal modules, external accessories
and testing devices:
PR332/P
L I
Values
available
PR333/P
L S
Temporary accessories (test connector)
BT030-USB
PR030/B
PR010/T
Ekip T&P

3.3. Specifications

Protection releases PR332/P, for SACE Emax X1 and SACE Tmax T7-T8, circuit-breakers, and PR333/P for X1 circuit-breakers
are electronic devices with functions for monitoring and for protecting against fault currents.
The units also possess Measuring, Data Storage, Communication, Self-diagnosis, Load Control and Zone Selectivity functions.
The protection release installed in the circuit-breaker is connected to the current sensors for primary current reading, to the Trip
Coil for the circuit-breaker opening command and to the CB state contacts.
The sensors provide the primary current measurement and energy for powering the protection release even in the absence of
external power supply.
Connected directly to an opening mechanism, the Trip Coil allows the CB to open. The command is transmitted to the Trip coil
in accordance with the protection settings.
The state contacts of the CB provide information about the CB's position.
A graphic display and a set of push-buttons allow all the information about the protection release to be accessed. They can also
be used for adjusting the protections and settings and for reading the state and alarms. In addition, the presence of alarms is
indicated by two front leds.
B0431
Mod.
PR332/P PR332/P
L S I L S
PR333/P
I L S I G
In=1600A
B1751
PR332/P
I G L S I Rc
External accessories
HMI030
Flex Interface
Sensore Rc
Sensore SGR
Sensore Neutro Esterno
Apparatus
Doc N°
PR332/P
L S I G MM
Optional internal module
PR330/V
PR330/D-M
Emax X1-Tmax T7-Tmax T8
1SDH000587R0002
Scale
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