Water cooling of the generator stator generally does not cause short circuits because sufficient insulation and leakage prevention are considered in the design.
However, due to the harsh operating conditions, water leakage from the water-cooled stator winding is a common fault and is common in turbine generators domestic steam engines. If the material of the hollow copper wire is not good, it will easily break and leak during operation. Winding ends are common sites for water penetration and leakage, sometimes leading to grounding and short circuits. When there are cracks or large holes in the leak area, hydrogen may be on top of the cold water tank in the stator. The reasons for water leaking at the end are:
a) The quality of the wire itself is not good or there are holes in the jointss between wires causing water leaks.
b) The quality of the water pipes is poor or the joints of the water pipes are poorly installed or have loopholes.
c) Mutual friction between insulated water pipes can wear away the walls of the water pipes and cause water leakage accidents. During the installation and maintenance period of the unit, carefully check the end windings, cables, housings and other parts to ensure the normal operation of the generator.