- Torsional Analysis
It shall be certified that a mathematical torsional analysis has been made of a like combination
of engine and alternator to insure that excessive torsional stresses do not exist in the system.
- Testing
The engine and generator set shall be tested as follows:
a. Factory or Point of Assembly Test1) The engine-generator set may be tested as a combined unit to at least 965 kW at
80% power factor under the time constraints as hereinafter specified.2) The engine-generator set may be tested as a combined unit to at least 965 kW at
unity power factor 100% load provided that the manufacturer of the generator
certifies, in writing, that the generator being furnished has been tested, at the
manufacturer’s plant, to at least 965 kW at 80% power factor.3) Testing shall be conducted under the following loading and time constraints:50% load – 4 hours60% load – 2 hours70% load – 2 hours80% load – 2 hours90% load – 2 hours100% load – 12 hours4) The vendor shall supply all fuel and loading equipment.5) Factory testing shall be witnessed by a representative of UIHC.b. On-Site Testing1) The assembled equipment, including control panel and switch-gear, etc. shall be
tested in its final installed location to insure the proper operation of the individual
components, subassemblies, and the complete assemblies, and to eliminate any
electrical and mechanical defects.2) The engine-generator set shall have been connected to its final radiator, exhaust,
fuel and electrical systems.3) Load equipment and connecting cables shall be provided by the vendor with the
load connected through the main circuit breaker. Load as specified in 4.A-2.11November 1, 2016