Podrobnosti návrhu
| Název | Instrument transformers - Part 14: Additional requirements for current transformers for DC applications |
|---|---|
| Číslo | 38/867/CDV - IEC 61869-14 ED2 |
| Zdroj | ISO\IEC\CEN\CENELEC |
| Komise | IEC/TC 38 (Instrument transformers) |
| Zkontrolujte datum zahájení | |
| K připomínkám do | |
| Oblast zaměření |
Akce
Anotace
This part of IEC 61869 provides all requirements specific to current transformers to be used in DC applications (DC CTs), whatever the technology used. The output signal can be analogue or digital. When it is analogue, it is available as low voltage representing the primary current.
It is applicable to newly manufactured current transformers used for measuring, protection and/or control applications in power systems with a rated voltage above 1,5 kV DC.
The general configuration of a single-pole low-power instrument transformer is described in Figure 1 of IEC 61869-1:2023.
NOTE A bushing type current transformer, although having no primary insulation level for itself is often placed on a system with a nominal voltage > 1,5 kV DC and therefore falls within the scope of this document. Example: CT placed on an HV bushing or a cable.
DC CT for railway applications are not part of this standard and are covered by IEC TC9.
Instrukce
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