For possible faults and abnormal working conditions of diesel generator, the following protections shall be selectively installed according to the capacity of the generator.

(1) Longitudinal differential protection: It is a phase to phase short circuit protection for the stator winding and its outgoing lines.

(2) Horizontal differential protection: It is a protection for one phase inter turn short circuit of the stator winding. This type of protection is only installed when one phase stator winding has two or more parallel branches forming two or three neutral point leads.

(3) Single-phase grounding protection: It is a single-phase grounding protection for the stator winding of the generator.

(4) Excitation circuit grounding protection: It is the grounding fault protection of the excitation circuit.

(5) Low excitation and loss of excitation protection: To prevent large generators from absorbing a large amount of reactive power from the system and causing adverse effects on the system after low excitation (excitation current lower than the excitation current corresponding to the static stability limit) or loss of excitation (excitation current is zero), generators with a capacity of 100MW and above are equipped with this protection.

(6) Overload protection: it is used to protect the signal when the diesel generator operates beyond the rated load for a long time. Small and medium-sized generators are only equipped with set point overload protection; Large generators should be equipped with stator overload and excitation winding overload protection separately.

The above content is about "domestic diesel generator set of Kommler Power: protection measures that can be set for diesel generator set?". Kommler Power, the manufacturer of domestic diesel generator set, hopes to help you, and hopes you can pay attention to the official website of domestic diesel generator set manufacturer Kommler Power http://www.comler.cn In order to provide you with more information.