Danfoss TT400 Series User Manual

Page 40 of 108
M-AP-001-EN Rev. N
M-AP-001-EN Rev. N
Electrical Specications
All Turbocor compressors have been tested in accordance with IEC Standard 1000-4-4.
Electrical Fast Transient/Burst Requirement. For additional protection, a surge suppressor
can be installed in parallel with the compressor. It is recommended to install surge
suppression in sites that are susceptible to lighting.
If it is necessary to provide additional harmonic reduction beyond that provided by the
standard 5% line reactor, DTC recommends the installation of a harmonic lter device in
parallel with the compressor as shown in Figure 20-9.
6.8 Surge Protection
6.9 Harmonic Filtering
(IEEE 519)
1. All metal parts should be connected to ground, including the shields of electrical
cables.
2. Verify continuity of all ground connections.
3. Ensure solid ground connections (both mechanical and electrical). Connections must
be clean, and grease and paint free.
4. At one point, usually the entrance of the power supply panel, all grounds should be
connected together (refer to Section 6.11).
From an EMC standpoint, it is best to categorize dierent types of grounds and treat them
independently (see Figure 6-1):
• Safety ground (Protective Earth [PE]) and shields of mains cables.
• Analog grounds, shielding of interface cables.
• Digital grounds.
• Reference ground (panel doors, backplate, etc.).
6.10 Grounding (Earth)
Connection Guidelines
NOTE
All TT compressors are compliant with standards:
IEC 60335-2-34:2002
IEC 60335-1:2007
EN 61000-6-2:2005
EN 61000-6-4:2007
2004/95/EC
2006/42/EC
strands, is recommended for best grounding performance. The multiple-strand cabling
provides more surface area in order to conduct the high frequencies that are on the
grounding cable.
Radiation of noise is also a concern for power line routing as it can eectively bypass the
lter. Input and output lter leads should be separated by a maximum practical distance
within enclosures and should be routed separately in interconnecting conduits when used.

Danfoss TT400 Series Specifications

General

Brand	Danfoss
Model	TT400 Series
Category	Compressor
Language	English