Isolation transformer
Product introduction
Isolation transformer is mainly used for the low-voltage power distribution system, is provided between the load and the power distance, low voltage distribution system is divided into TN, TT, IT in three forms, the first capital letter T said power transformer neutral directly grounding; I represents a power transformer neutral point earth (or high impedance ground). Second capital letters T said electrical equipment shell is directly grounded, but no connection and grounding system of power network; N said connected grounded neutral housing and the system of the electrical device.
TN system: power transformer neutral point grounding, equipment exposed part is connected with the neutral line.
TT system: power transformer neutral point grounding, electrical equipment shell with protection earthing.
IT system: power transformer neutral point ungrounded, and enclosures for electrical equipment electrical equipment with protective earthing.
Isolation transformer in IT power distribution system, can prevent the electric shock protection, insulation damage connected equipment, but also provide the neutral point connected to form the disconnecting and earthing.
Application field
An important application of isolation transformer in electric locomotive, data center, low-voltage power distribution, the subway control center, ships and other areas
Technical parameters
1, the power range: less than 2500KVA
2, the dielectric strength: winding - winding, winding - 3000VAC/50Hz/60s no flashover breakdown
3, insulation resistance: through screw - 500VDC, insulation resistance value is more than 100M Omega
4, the transformer noise: less than 65dB (and transformer horizontal distance point 1 meters test)
5, protection grade: IP00 (optional distribution cabinets)
6, insulation grade: H
7, product executive standard: IEC726-11 dry type power transformer, GB1094.11-2007 dry type power transformer, requirements of IEEE.C57.12.01-2005 dry type distribution and power transformers for general use.
Conditions of use
1, an altitude of more than 1000 meters, more than 1000 meters derating.
2, the operating environment temperature between -5 DEG ~+40 DEG C, relative humidity of not more than 90%.
3, no harmful gas, inflammable and explosive materials, no conductive dust.
Isolation transformer is mainly used for the low-voltage power distribution system, is provided between the load and the power distance, low voltage distribution system is divided into TN, TT, IT in three forms, the first capital letter T said power transformer neutral directly grounding; I represents a power transformer neutral point earth (or high impedance ground). Second capital letters T said electrical equipment shell is directly grounded, but no connection and grounding system of power network; N said connected grounded neutral housing and the system of the electrical device.
TN system: power transformer neutral point grounding, equipment exposed part is connected with the neutral line.
TT system: power transformer neutral point grounding, electrical equipment shell with protection earthing.
IT system: power transformer neutral point ungrounded, and enclosures for electrical equipment electrical equipment with protective earthing.
Isolation transformer in IT power distribution system, can prevent the electric shock protection, insulation damage connected equipment, but also provide the neutral point connected to form the disconnecting and earthing.
Application field
An important application of isolation transformer in electric locomotive, data center, low-voltage power distribution, the subway control center, ships and other areas
Technical parameters
1, the power range: less than 2500KVA
2, the dielectric strength: winding - winding, winding - 3000VAC/50Hz/60s no flashover breakdown
3, insulation resistance: through screw - 500VDC, insulation resistance value is more than 100M Omega
4, the transformer noise: less than 65dB (and transformer horizontal distance point 1 meters test)
5, protection grade: IP00 (optional distribution cabinets)
6, insulation grade: H
7, product executive standard: IEC726-11 dry type power transformer, GB1094.11-2007 dry type power transformer, requirements of IEEE.C57.12.01-2005 dry type distribution and power transformers for general use.
Conditions of use
1, an altitude of more than 1000 meters, more than 1000 meters derating.
2, the operating environment temperature between -5 DEG ~+40 DEG C, relative humidity of not more than 90%.
3, no harmful gas, inflammable and explosive materials, no conductive dust.
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