TOPUKE-SYDY test power supply cabinet
Summarize：
TOPUKE-SYDY test power supply cabinet is designed and manufactured by our company according to the relevant provisions of Ministry of Energy "Power plant, substation engineering and relay protection test instrument Configuration Quota", "Relay Protection Test Regulations" and "Key Points of anti-accident measures for Power System relay Protection and safety automatic Device" issued by the Ministry of Electric Power Industry. It provides a reliable, stable and convenient AC and DC test power supply for the field relay protection test work, and provides a reliable guarantee for improving the quality of the relay protection test work and ensuring the safety of people and equipment. Mainly used in power plants, substations and large and medium-sized industrial enterprises, as a standard relay protection test power supply.
Functional characteristics：
1．The AC power supply uses a large capacity isolation transformer to isolate the system power supply from the test power supply, and a shielding layer is installed between the primary and secondary, so that the test power supply is protected from the transient process of the power grid and other harmonic interference. Transformer usage △/Y0the wiring mode greatly reduces the third harmonic and ensures the quality of the power supply.
2．The control of AC power supply adopts automatic switch, which has the function of quick action, long life, short circuit and automatic tripping of overload.
3．The output AC power supply has the advantages of stable performance, high sensitivity, reliable action, short circuit, overload automatic tripping function.
4． Dc circuit using DC circuit breaker, with fast action, long life, short circuit, overload automatic tripping function.
Technical index：
1．Ac part
1） Rated input voltage: three-phase220Ｖ/380V，frequency50Hz。；
2）Rated output voltage：220V/380V，three-phase four-wire, a total of three outputs；
57.7V/100V， three-phase, four-wire, three outputs.。
3）When the three-phase input is balanced, the output unbalance is less than1%。
4）The third harmonic component is less than3%。
5 Isolation transformer capacity15kVA，Under the eight-hour working system, the maximum output current is3×22.8A。
2．Dc component
1）The power input is AC three-phase380V；
2）Output DC voltage0～250VContinuously adjustable, divided into three output;
3）Rectifier transformer capacity5kVA，the maximum output current under the eight-hour working system20A；
4）Output DC ripple coefficientK<1.5%。