This series large power voltage stabilizer is an energy-saving new product developed by our company by absorbing the advanced technology of western Europe. It is provided with two systems of manual/automatic dual control, direct output and stabilizing output, with the functions of over/under-voltage protect -ion, delay and error protection etc, it is reliable and suitable for any load. It is an ideal power source for any big power consumption department like the industrial and mining enterprise hotels and telecommunications etc.that need overall regulating and single-unit regulated power supply.