Thytronic NA011 - Product Identification; Environment; Graphical Conventions; Glossary;Definitions

INTRODUCTION
6
NA011 - Manual - 05 - 2022
Product identification
Each device is equipped with:
• Identification label installed on the front side with following informations: code number, phase and
residual nominal currents, auxiliary voltage range and CE mark:
• Test label with following informations: data, serial number and test operator signature.
Environment
The NA011 device must be employed according to the environment conditions shown (see technical
data).
In case of different environment conditions, appropriate provisions must be provided (conditioning
system, humidity control, etc...).
If contaminants are present (dust, corrosive substances, etc...), filters must be provided.
Graphical conventions
The CEI/IEC and ANSI symbols is employed where possible:
e.g.: 51 = ANSI code concerning the overcurrent element.
Following text formats are used:
The ThyVisor
[1]
menu:
Phase overcurrent -50/51
The parameter description (measures, thresholds, operate time,...) and related value:
First threshold 50/51 denite time
I>def
The display messages (MMI) are shown as:
NA011
Notes are highlighted with cursive letters inside colored bar
Note: Useful description note
Glossary/definitions
I
En
Relay residual nominal current
I
Enp
Residual CT primary nominal current
I
n
Relay phase nominal current
I
np
Phase CT primary nominal current
50/51 Phase overcurrent ANSI code
50N/51N Residual overcurrent ANSI code
79 Automatic reclosing
DFR Digital Fault Recorder (Oscillography)
SER Sequential Event Recorder
SFR Sequential Fault Recorder
ANSI American National Standard Institute
IEEE Institute of Electrical and Electronics Engineers
IEC International Electrotechnical Commission
CENELEC Comité Européen de Normalisation Electrotechnique
Note 1 The graphic interface and the operation of the ThyVisor software are described in the relative chapters
NA011#xxx0
I
n
5A 1A
50-51
50N-51N
CB OPEN
CB CLOSED
79
5A
U
AUX
24-230 Vac/dc
1
2
3
4
5
NA011#xxx1
I
I
n
n
Rated 50...500A
Extended 50...1250A
50-51
50N-51N
CB OPEN
CB CLOSED
79
U
AUX
24-230 V
1
2
3
4
5
NA011#xxx2
I
n
5A 1A
50-51
50N-51N
CB OPEN
CB CLOSED
79
5A
U
AUX
24-230 Vac/dc
I
En
1A 1A 5A
1
2
3
4
5
NA011#xxx3
I
I
n
n
Rated 50...500A
Extended 50...1250A
50-51
50N-51N
CB OPEN
CB CLOSED
79
I
En
1A 1A 5A
U
AUX
24-230 V
1
2
3
4
5