s
Product documentation 1D 3.8.en Rev. E, 10/13 page 14/42
2.2.5 Asymmetric load
Asymmetric load according to IEC 60034-1-22
2.2.6 Short-circuit current
During symmetrical three-phase short-circuit the value of short-time short-circuit current makes minimally
triple of nominal current. Short-circuit current must be switched off within 3 s.
2.2.7 Radio interference elimination
Generators correspond to interference elimination degree according to IEC 60034-1.
2.2.8 Currents in star neutral points
If star neutral points of generators are connected mutually or with neutral points of transformers and
appliances directly, then transient currents with triple determined frequency could appear in conductor
among neutral points. To prevent thermal jeopardy of generators, transient currents should not exceed 50 %
of nominal current of generator. Higher currents should be reduced outside of device by means of current
limiting choke or similar devices.
2.3 Use
Generators are used in land central offices and in naval shipboard networks for long-term or reserve
operation. They can be driven by combustion engines, gas of water turbines or electromotors. They can run
individually, parallelly with similar device or it is possible to connect them to public network.
2.4 Warranties
Warranties refer to adhering of operational instructions and permissible operational terms. If these
provisions are not adhered, it can result in refusing of warranty claims. During claim or with spare parts order
it is necessary to provide factory (production) number and if need other data stated in output name plate. The
user is obliged to keep the operational log, and he can dismantle the generator only if approved by the
producer otherwise the producer shall be released from the obligations under its warranty. During the
warranty and after the warranty period, the user must not make any external and internal intervention in the
machine design.
2.5 Standards
Generator design corresponds to standards IEC 60034-1. If required, generators can meet requirements of
other standards and regulations.
To Next Page
Loading...
Need help?
General
