AEG DUA2.1 Guida rapida
Numerical Voltage Protection Relay
Technical Guide and user manual
HF9024 (DUA2.1)
Technical Guide and
user manual
Contents
CONTENTS
Handling, Installation and Case Dimensions
User Guide
Menu Content Tables
Technical Data and Curve Characteristics
Application Guide
NUMERICAL Voltage Relay
Introduction
HF9024
Introduction
5
HF9024
CONTENTS
1. INTRODUCTION 2
2. HOW TO USE THIS MANUAL 3
3. INTRODUCTION TO THE HF9024 4
4. MAIN FUNCTIONS
Introduction
1. INTRODUCTION
The Voltage relay type HF9024 is a numerical relay .
HF9024
Introduction
HF9024
HF9024
2. HOW TO USE THIS MANUAL
This manual provides a description of HF9024 functions and settings. The goal of
this manual is to allow the user to become familiar with the application,
installation, setting and commissioning of the relay.
This manual has the following format:
HF9024 Introduction
Contents of the manual and general introduction to the relay
HF9024 Handling, installation and case dimensions
Precautions to be taken when handling electronic equipment.
HF9024 User Guide of the relay as
A detailed description of the features
HF9024 Technical data and Comprehensive details
on nominal values, setting ranges,
Specifications.
HF9024 Commissioning and Maintenance Guide
Guide to commissioning, problem solving and maintenance of
HF9024 Connection diagrams for the relay
HF9024 Commissioning test records
HF9024 Hardware/Software version history
HF9024 Communication mapping data bases
Introduction
HF9024
HF9024
3. INTRODUCTION TO THE RELAY
The HF9024 relay provide comprehensive Voltage fault protection for utilities
networks, industrial plants and networks as well as for other applications where
Voltage protection is required.
In addition to its protective functions, each relay offers control and recording
features. They can be fully integrated to a control system so protection, control,
data acquisition and recording of faults, events and disturbances can be made
available.
The relay is equipped on the front panel with a liquid crystal display (LCD) with 2
x 16 back-lit alphanumerical characters, a tactile 7 button keypad (to access all
settings, clear alarms and read measurements) and 11 LEDs that indicate the
status of the relay.
In addition, the use of the RS485 communication port by using protocol mode
bus makes it possible to read, reinitialize and change the settings of the relay, if
required, from a local or remote PC computer loaded with software.
Its flexibility of use, reduced maintenance requirements and ease of integration
allow the Relay to provide an adaptable solution for the problems of the
protection electric networks.
Introduction
4. MAIN FUNCTIONS
The following table shows the functions available for HF9024 relay.
PROTECTION FUNCTIONS OVERVIEW
HF9024
Configuration depending on the number
and type of voltage transformers
Phase-to-neutral or phase-to-phase voltage protection
27
Phase under voltage (AND/OR logic)
59
Phase over voltage (AND/OR logic)
59N
Zero sequence over voltage
47
Negative sequence over voltage
-
Remote communication (RS485 port)
Local communication (RS232 port)
Event recording
250
Fault recording
25
Disturbance recording
5
Setting group
1
Circuit Breaker Control
Output relay latching
HF9024
27D Positive sequence under voltage -
Delta U / Delta T
Blocking logic
Balance voltage -
Digital inputs 2
Output relays 6
Handling, Installation and Case Dimensions
HANDLING, INSTALLATION
AND CASE DIMENSIONS
HF9024
Handling, Installation and Case Dimensions
CONTENTS
1. GENERAL CONSIDERATIONS 2
1.1 Receipt of relays 2
1.2 Electrostatic discharge (ESD) 2
2. HANDLING OF ELECTRONIC EQUIPMENT 3
3. RELAY MOUNTING 4
4. UNPACKING 5
5. STORAGE 6
6. DIMENSIONS 7
7. Communication 8
7.1 RS232 Port 8
7.2 RS485 port 8
8. Earthing 8
HF9024
Handling, Installation and Case Dimensions
1. GENERAL CONSIDERATIONS
1.1 Receipt of relay
Protective relay, although generally of robust construction, require careful
treatment prior to installation on site. Upon receipt, relay should be examined
immediately to ensure no damage has been sustained in transit. If damage has
been sustained during transit a claim should be made to the transport
contractor and HAMIANFAN should be promptly notified.
1.2 Electrostatic discharge (ESD)
The relay use components that is sensitive to electrostatic discharges.
The electronic circuits are well protected by the metal case and the internal
module should not be withdrawn unnecessarily. When handling the module
outside its case, care should be taken to avoid contact with components and
electrical connections. If removed from the case for storage, the module should
be placed in an electrically conducting antistatic bag.
There are no setting adjustments within the module and it is advised that it is
not unnecessarily disassembled. Although the printed circuit boards are
plugged together, the connectors are a manufacturing aid and not intended for
frequent dismantling; in fact considerable effort may be required to separate
them. Touching the printed circuit board should be avoided, since
complementary metal oxide semiconductors (CMOS) are used, which can be
damaged by static electricity discharged from the body.
HF9024
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