Voltage transformers are necessary for measuring and holding the voltage , for use in measurement and control systems and protection systems . voltage transformers, can greatly reduce the amount of voltage so that it can be used in control circuits and protection measures. Therefore, features voltage transformer can be mentioned the following: - Conversion of some usually high voltage, the amount used in the relay and equipment. - Separate the high voltage measuring circuit. - Providing the possibility of using the equipment in the amount of nominal current and voltage relays. Bornika is the exclusive representative of RITZ company, in purchasing, sales, consulting and distribution of industrial equipment and transformers , including , voltage transformers(PT) in low voltage .