Thytronic NV10B User Manual

INTRODUCTION
6
NV10B - Manual - 04 - 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 NV10B 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:
eg: 27 = ANSI code concerning the undervoltage element.
Nel presente manuale sono utilizzati i seguenti formati tipografici:
Following text formats are used:
The ThyVisor
[1]
menu:
Undervoltage - 27
The parameter description (measures, thresholds, operate time,...) and related value:
U> element
    Denitetime
U>def
The display messages (MMI) are shown as:
NV10
Notes are highlighted with cursive letters inside colored bar
Note: Useful description note
Glossary/definitions
27 Undervoltage ANSI code
59 Overvoltage ANSI code
59N Residual voltage ANSI code
BF Breaker Failure
74VT VT monitoring
74TCS Trip Circuit Supervision
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
52 o CB (Circuit Breaker) Circuit Breaker
52a Auxiliary contact in the breaker that is in the same position as the
breaker. It can be assigned to a binary input to locate the CB posi-
tion (Breaker failure and/or CB diagnostic functions). (52a open = CB
open)
52b Auxiliary contact in the breaker that is in the opposite position as the
breaker (52b open = CB closed)
K1...K6...K10 Output relays
Pulse Output relay with pulse operation
tTR Output relay minimum pulse width
Latched Output relay with latched operation (manual reset) Output relay with
latched operation (automatic reset)
No-latched Output relay with no-latched operation (automatic reset)
CT Current Transformer
P1 IEC nomenclature for primary polarity mark of CTs (as an alternative to
a ANSI dot)
P2 IEC nomenclature for primary polarity mark of CTs (as an alternative to
a ANSI no-dot)
S1 IEC nomenclature for secondary polarity mark of CTs (as an alternative
to a ANSI dot)
S2 IEC nomenclature for secondary polarity mark of CTs (as an alternative
to a ANSI no-dot)
Self test Diagnostic
Note 1 The graphic interface and the operation of the ThyVisor software are described in the relative chapters

Thytronic NV10B Specifications

General

Brand	Thytronic
Model	NV10B
Category	Relays
Language	English