INTRODUCTION
7
NVA100X-D - Manual - 02 - 2016
Product identification
Each device is equipped with:
Identifi cation label installed on the front side with following informations: code number, phase and
residual nominal currents, auxiliary voltage range and CE mark
[1]
:
Test label with following informations: data, serial number and test operator signature
[2]
.
Environment
The NVA100X-D device must be employed according to the environment conditions shown (see tech-
nical 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...), fi lters 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 ThySetter menu:
Phase overcurrent -50/51
The parameter description (measures, thresholds, operate time,...) and related value:
I> element
Defi nite time
I>def
The display messages (MMI) are shown as:
NVA100X
Notes are highlighted with cursive letters inside colored bar
Note: Useful description note
Glossary/definitions
f
n
Rated frequency
I
nH
Relay phase rated current side H
I
npH
Phase
CT
primary rated current side H
I
nL
Relay phase rated current side L
I
npL
Phase
CT
primary rated current side L
I
ng
Protected device rated current
I
En1
Relay
residual rated current (input 1)
I
Enp1
Residual CT primary rated current (input 1)
I
En2
Relay
residual nominal current (input 2)
I
Enp2
Residual CT primary nominal current (input 2)
ANSI codes:
21
Underimpedance
26
Thermal with Pt100 probes
27 Undervoltage
27V1 Positive
sequence
undervoltage
32P Directional
active
overpower
37 Undercurrent
37P Directional
active
underpower
40
Loss of fi eld
46M-46G Negative
sequence
overcurrent
47 Phase
reversal
49MG Thermal
image
50/51
Phase overcurrent side H and side L
51LR(48)/14 Locked
rotor
51V
Voltage restraint overcurrent
50N1-2/51N1-2/87NHIZ* Residual
overcurrent
(sides1-2)/
High impedance restricted earth fault
50N(Comp)/51N(Comp) Calculated
residual
overcurrent
55 Minimum
power
factor
Note 1 The rating data can be found on labels on the back and on the front (accessible after removing the left frame)
Note 2 The rating data can be found on labels on the front plate (accessible after removing the right frame)
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•
•
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NVA100X#0D2J0TE0
I
n
5A
U
AUX
110-230 Vac/dc
100V
100V
I
En
U
En
U
n
1A
1A
5A
1A
5A
NVA100X#0D2J0TE0
I
n
5A
U
AUX
110-230 Vac/dc
100V
100V
I
En
U
En
U
n
1A
1A
5A
1A
5A
