-
-
Available Formats
- Options
- Availability
- Priced From ( in USD )
-
Available Formats
-
- Immediate download
- $417.00
- Add to Cart
-
- Printed Edition
- Ships in 1-2 business days
- $417.00
- Add to Cart
Customers Who Bought This Also Bought
-
IEC/TR 60909-2 Ed. 2.0 en:2008
Priced From $329.00 -
IEC 60404-12 Ed. 2.0 b:2023
Priced From $95.00 -
IEC 60909-0 Ed. 2.0 b:2016
Priced From $417.00 -
IEC 60865-1 Ed. 3.0 b:2011
Priced From $367.00
About This Item
Full Description
This part of IEC 60909, which is a Technical Report, is intended to give help for the application of IEC 60909-0 for the calculation of short-circuit currents in 50 Hz or 60 Hz three-phase AC systems.
This document does not include additional requirements but gives support for the modelling of electrical equipment in the positive-sequence, the negative-sequence and the zero-sequence system (Clause 4), the practical execution of calculations in a low-voltage system (Clause 5), a medium-voltage system with asynchronous motors (Clause 6) and a power station unit with its auxiliary network feeding a large number of medium-voltage asynchronous motors and low voltage motor groups (Clause 7).
The three examples given in Clauses 5, 6 and 7 are similar to those given in IEC TR 60909- 4:2000 but they are revised in accordance with IEC 60909-0, which replaces it. The example given in Clause 8 is new and mirrors the introduction of the new 6.8 of IEC 60909-0:2016.
Clause 9 gives the circuit diagram and the data of a test network and the results for a calculation carried out in accordance with IEC 60909-0, to offer the possibility for a comparison between the results found with a digital program for the calculation of short-circuit currents and the given results for Ik, ip, Ib, Ik, Ik1 and ip1 in a high-voltage network with power station units, generators, asynchronous motors and lines in four different voltage levels 380 kV, 110 kV,
30 kV and 10 kV.
Document History
-
IEC/TR 60909-4 Ed. 2.0 en:2021
viewing
Short-circuit currents in three-phase AC systems - Part 4: Examples for the calculation of short-circuit currents- Most Recent
-
IEC/TR 60909-4 Ed. 1.0 b:2000
Short-circuit currents in three-phase a.c. systems - Part 4: Examples for the calculation of short-circuit currents- Historical Version