SMA STP 60-US-10 Installation - Manual (Page 17)

SMA Solar Technology AG 1 Introduction
Installation Guide STP60-10-IA-xx-10 17
• Service manual for replacing the fan – for information
required to replace a fan.
• Service manual for replacing the SPDs – for
information required to replace surge protection
devices.
These documents are available from the download area at
www.SMA-Solar.com or from the supplier of the PV inverter.
Figure 1.2 Sunny Tripower 60
Abbreviation Description
ANSI American National Standards Institute
AWG American Wire Gauge
cat5e Category 5 twisted pair cable (enhanced) for
data transmission
DHCP Dynamic Host Configuration Protocol –
enables automatic assignment of the network
address via the DHCP server
DGO Distribution Grid Operator
DSL Digital Subscriber Line
EMC (directive) Electromagnetic compatibility directive
ESD Electrostatic Discharge
FCC Federal Communications Commission
FRT Fault Ride Through
GSM Global System for Mobile Communications
(standard for digital cellular mobile network)
HDD Hard Disk Drive
IEC International Electrotechnical Commission –
international standards organization
IT Isolated Terra
LCS Local Commissioning and Service
LED Light-Emitting Diode
LVD (Directive) Low voltage directive
MCB Circuit Breaker
MPP Maximum Power Point
MPPT Maximum Power Point Tracking determines the
point of optimum PV power
NFPA National Fire Protection Association
P P is the symbol for active power and is
measured in Watts (W).
PCB Printed Circuit Board
PCC Point of Common Coupling - point of
interconnection
The point on the public electricity network to
which other customers are, or could be,
connected.
PE Protective Grounding
PELV Protected Extra-Low Voltage
PLA Power Level Adjustment = Output power
limitation
P
nom
Power [W], Nominal active power
POC Point of Connection
The point at which the PV system is connected
to the public utility grid.
P
STC
Power [W], Standard Test Conditions
PV Photovoltaic, photovoltaic cells
RCD Residual-Current Device
RCMU Residual Current Monitoring Unit
R
ISO
Insulation resistance
ROCOF Rate of Change of Frequency
Q Q is the symbol for reactive power and is
measured in reactive volt-amperes (VAr).
S S is the symbol for apparent power and is
measured in volt-amperes (VA).
STC Standard Test Conditions
SW Software
THD Total Harmonic Distortion
TN-S Terra Neutral - Separate. AC Network
TN-C Terra Neutral - Combined. AC Network
TN-C-S Terra Neutral - Combined - Separate. AC
Network
TT Terra Terra. AC Network
Abbreviation Description