Model Number and Meaning
S13(22)-M.ZT type on-load auto-capacitor regulating distribution transformer scope of application
This product is suitable for rated frequency of 50Hz, voltage level of 10kV, three-phase rated capacity of 100(30)kVA~630(200)kVA on-load auto-capacitor regulator distribution transformer.
S13(22)-M.ZT type on-load auto-capacitor regulating distribution transformer Product introduction
S13(22)-M.ZT type on-load automatic capacitance adjusting voltage regulating distribution transformer is a kind of distribution transformer with two kinds of rated capacity, according to the load size carried by the user by the automatic capacitance adjusting controller automatic detection and judgment, and through the special on-load capacitance adjusting voltage regulating switch, in the state of the transformer without power, the two kinds of capacity of the transformer automatic switching to achieve the automatic adjustment of the size of the capacity of the transformer in the process of the operation, so as to realize two kinds of rated capacity operation mode automatic conversion. Realization of two rated capacity operation mode automatic conversion of distribution transformer.
S13(22)-M.ZT type on-load auto-capacitor regulating distribution transformer use and scope of application
S13(22)-M.ZT type on-load auto-capacitor regulating distribution transformer is suitable for the place with strong seasonal electricity consumption, large load fluctuation, concentrated electricity consumption and low annual average load rate. In China's rural electricity consumption is mainly concentrated in the summer and autumn seasons, the rest of the season is mainly lighting electricity, in the busy season, transformer overload operation phenomenon is serious, and in the off-season, the load rate is low, there is the phenomenon of “big mara and small car”, so the on-load capacitor-regulating distribution transformer is particularly suitable for agricultural network transformation; in addition, also applies to daytime and nighttime electricity consumption load difference is big. In addition, it is also suitable for the residential neighborhoods and enterprises and institutions with big difference between daytime and nighttime electricity load.
S13(22)-M.ZT type on-load auto-capacitor regulating distribution transformer basic principle
On-load automatic capacitance-regulating distribution transformer in large capacity, three-phase high-voltage windings connected to the triangular connection (angle), low-voltage windings in parallel structure; in small capacity three-phase high-voltage windings connected to the star-shaped connection (star), low-voltage windings in series structure
The star-delta conversion of the high-voltage winding and the series-parallel conversion of the low-voltage winding are accomplished by the on-load capacitor switch, which is switched by the automatic controller according to the detected negative cut-off size.
When the transformer is converted from large capacity to small capacity, due to the number of coil turns increased 1.7 times, the core flux density is greatly reduced, the silicon steel sheet unit loss becomes small, no-load loss and no-load current is also greatly reduced, thus greatly reducing the transformer's no-load reactive power loss (small capacity no-load reactive power loss is less than one-tenth of the loss of the large-capacity) and active loss (small-capacity no-load loss is less than one-third of the loss of large-capacity), to achieve the purpose of energy saving and power consumption reduction. (the no-load loss of small capacity is less than one-third of the loss of large capacity), which achieves the purpose of energy saving and consumption reduction.
