Areva KITZ 101 Manual de usuario
Type KITZ 101, 102
Interface Unit
User Manual
R8521J
User Manual
Type KITZ 101, 102
Interface Unit
HANDLING OF ELECTRONIC EQUIPMENT
A person's normal movements can easily generate electrostatic potentials of several thousand volts.
Discharge of these voltages into semiconductor devices when handling electronic circuits can cause serious
damage, which often may not be immediately apparent but the reliability of the circuit will have been
reduced.
The electronic circuits of AREVA T&D products are immune to the relevant levels of electrostatic discharge when
housed in their cases. Do not expose them to the risk of damage by withdrawing modules unnecessarily.
Each module incorporates the highest practicable protection for its semiconductor devices. However, if it becomes
necessary to withdraw a module, the following precautions should be taken to preserve the high reliability and
long life for which the equipment has been designed and manufactured.
1. Before removing a module, ensure that you are at the same electrostatic potential as the equipment by
touching the case.
2. Handle the module by its front-plate, frame, or edges of the printed circuit board.
Avoid touching the electronic components, printed circuit track or connectors.
3. Do not pass the module to any person without first ensuring that you are both at the same electrostatic
potential. Shaking hands achieves equipotential.
4. Place the module on an antistatic surface, or on a conducting surface which is at the same
potential as yourself.
5. Store or transport the module in a conductive bag.
More information on safe working procedures for all electronic equipment can be found in BS5783 and
IEC 147-0F.
If you are making measurements on the internal electronic circuitry of an equipment in service, it is preferable
that you are earthed to the case with a conductive wrist strap.
Wrist straps should have a resistance to ground between 500k – 10M ohms. If a wrist strap is not available,
you should maintain regular contact with the case to prevent the build up of static. Instrumentation which may
be used for making measurements should be earthed to the case whenever possible.
AREVA T&D strongly recommends that detailed investigations on the electronic circuitry, or modification work,
should be carried out in a Special Handling Area such as described in BS5783 or IEC 147-0F.
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Contents
SAFETY SECTION 7
1. INTRODUCTION 11
2. HANDLING AND INSTALLATION 11
2.1 General considerations 11
2.2. Electrostatic discharge (ESD) 11
2.3. Unpacking 12
2.4. Storage 12
3. KITZ FEATURES 12
4. CONNECTION 13
4.1 RS232 (IEC-870) connection 17
4.2 K-Bus connection 18
5. KITZ OPTION SWITCHES 19
5.1 Option switch settings 20
5.2 Data rate selection 20
5.3 RS232 (IEC-870) frame parity 20
5.4 Time tagging of K-Bus messages 21
5.5 Modem control 21
6. KITZ LED INDICATIONS 22
7. PROTOCOL CONVERSION 23
7.1 Message format 23
7.2 Message validation 23
7.3 Message time-out 24
7.4 Conversion sequences 24
7.5 Receive message buffering 24
8. KITZ ADDITIONAL FEATURES 25
8.1 Real time clock (RTC) synchronisation 25
9. TECHNICAL DATA 26
9.1 Ratings – auxiliary supply 26
9.2 Burden – auxiliary supply 26
9.3 Fuse Ratings 26
9.4 Accuracy 26
9.5 Operation indicator 26
9.6 Communication ports 27
9.7 Message buffers 28
9.8 High voltage withstand 28
9.9 Environmental 29
9.10 Mechanical tests 29
9.11 Enclosure protection IEC529 IP20 29
10. COMMISSIONING 30
10.1 Commissioning preliminaries 30
10.2 Auxiliary supply tests 31
10.3 Settings 32
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11. PROBLEM SOLVING 32
11.1 Green supply indication led is off 32
11.2 Fuse blows on power-up (KITZ 101 only). 32
11.3 IEC 870 receive indication is off when communicating with a master station 32
11.4 K-Bus receive indication is off when communicating with a master station
(and K relay) 32
11.5 Slow communications response (many retries) 33
11.6 Real time clock corruption 33
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SAFETYSECTION
This Safety Section should be read before commencing any work on the equipment.
Health and safety
The information in the Safety Section of the product documentation is intended to
ensure that products are properly installed and handled in order to maintain
them in a safe condition. It is assumed that everyone who will be associated with
the equipment will be familiar with the contents of the Safety Section.
Explanation of symbols and labels
The meaning of symbols and labels which may be used on the equipment or in
the product documentation, is given below.
Caution: refer to product documentation Caution: risk of electric shock
Protective/safety *earth terminal
Functional *earth terminal.
Note: this symbol may also be used for a protective/
safety earth terminal if that terminal is part of a
terminal block or sub-assembly eg. power supply.
*Note: The term earth used throughout this manual is the direct equivalent of
the North American term ground.
Installing, Commissioning and Servicing
Equipmentconnections
Personnel undertaking installation, commissioning or servicing work on this
equipment should be aware of the correct working procedures to ensure safety.
The product documentation should be consulted before installing, commissioning
or servicing the equipment.
Terminals exposed during installation, commissioning and maintenance may
present a hazardous voltage unless the equipment is electrically isolated.
If there is unlocked access to the rear of the equipment, care should be taken by
all personnel to avoid electric shock or energy hazards.
Voltage and current connections should be made using insulated crimp
terminations to ensure that terminal block insulation requirements are maintained
for safety. To ensure that wires are correctly terminated, the correct crimp
terminal and tool for the wire size should be used.
Page 8
Before energising the equipment it must be earthed using the protective earth
terminal, or the appropriate termination of the supply plug in the case of plug
connected equipment. Omitting or disconnecting the equipment earth may cause
a safety hazard.
The recommended minimum earth wire size is 2.5 mm2, unless otherwise stated
in the technical data section of the Service Manual.
Before energising the equipment, the following should be checked:
Voltage rating and polarity;
CT circuit rating and integrity of connections;
Protective fuse rating;
Integrity of earth connection (
where applicable
)
Equipment operating conditions
The equipment should be operated within the specified electrical and
environmental limits.
Current transformer circuits
Do not open the secondary circuit of a live CT since the high voltage produced
may be lethal to personnel and could damage insulation.
External resistors
Where external resistors are fitted to relays, these may present a risk of electric
shock or burns, if touched.
Battery replacement
Where internal batteries are fitted they should be replaced with the
recommended type and be installed with the correct polarity, to avoid possible
damage to the equipment.
Insulation and dielectric strength testing
Insulation testing may leave capacitors charged up to a hazardous voltage. At
the end of each part of the test, the voltage should be gradually reduced to zero,
to discharge capacitors, before the test leads are disconnected.
Insertion of modules and pcb cards
These must not be inserted into or withdrawn from equipment whilst it is
energised, since this may result in damage.
Fibre optic communication
Where fibre optic communication devices are fitted, these should not be viewed
directly. Optical power meters should be used to determine the operation or
signal level of the device.
Page 9
Older products
Electrical adjustments
Equipments which require direct physical adjustments to their operating
mechanism to change current or voltage settings, should have the electrical
power removed before making the change, to avoid any risk of electric shock.
Mechanical adjustments
The electrical power to the relay contacts should be removed before checking
any mechanical settings, to avoid any risk of electric shock.
Draw out case relays
Removal of the cover on equipment incorporating electromechanical operating
elements, may expose hazardous live parts such as relay contacts.
Insertion and withdrawal of extender cards
When using an extender card, this should not be inserted or withdrawn from the
equipment whilst it is energised. This is to avoid possible shock or damage
hazards. Hazardous live voltages may be accessible on the extender card.
Insertion and withdrawal of heavy current test plugs
When using a heavy current test plug, CT shorting links must be in place before
insertion or removal, to avoid potentially lethal voltages.
Decommissioning and Disposal
Decommissioning: The auxiliary supply circuit in the relay may include
capacitors across the supply or to earth. To avoid electric
shock or energy hazards, after completely isolating the
supplies to the relay (both poles of any dc supply), the
capacitors should be safely discharged via the external
terminals prior to decommissioning.
Disposal: It is recommended that incineration and disposal to water
courses is avoided. The product should be disposed of in a
safe manner. Any products containing batteries should have
them removed before disposal, taking precautions to avoid
short circuits. Particular regulations within the country of
operation, may apply to the disposal of lithium batteries.
Page 10
Technical Specifications
Protective fuse rating
Refer to Section 9 Technical Data, item 9.3 Fuse ratings
Insulation class: IEC 1010-1: 1990/A2: 1995 This equipment requires a
Class I protective (safety) earth
EN 61010-1: 1993/A2: 1995 connection to ensure user
Class I safety.
Installation IEC 1010-1: 1990/A2: 1995 Distribution level, fixed
Category Category III installation. Equipment in
(Overvoltage): EN 61010-1: 1993/A2: 1995 this category is
Category III qualification tested at 5kV
peak, 1.2/50µs, 500ý,
0.5J, between all supply
circuits and earth and also
between independent
circuits.
Environment: IEC 1010-1: 1990/A2: 1995 Compliance is
Pollution degree 2 demonstrated by reference
EN 61010-1: 1993/A2: 1995 to generic safety standards.
Pollution degree 2
Product safety: 73/23/EEC Compliance with the
European Commission
Low Voltage Directive.
EN 61010-1: 1993/A2: 1995 Compliance is demonstrated
EN 60950: 1992/A3: 1995 by reference to generic safety
standards.
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