We offer numerical volts protection relay.
Mbt 191 relay can be connected either in phase -phase or phase - neutral pt secondary circuit. Nominal voltage which is settable (50 -150 v) in the relay could be chosen according to the connection. And the nominal frequency is settable either as 50 or 60 hz.
two elements:
mbt 191 relay consists of two elements. Each element can be independently put off or set to a wide range of overfluxing setting (b1 and b2). Both elements are having definite time characteristics and four types of inverse characteristics. Each element is provided with two numbers of ^no^ contacts independent to each other.
Both elements can be selected appropriately to give two stages of protection for the equipment. In addition to these two elements, starting function of these elements are indicated by a starter led and a changeover contact is available for annunciation.

We offer numerical volts protection relay.
Mbt 191 relay can be connected either in phase -phase or phase - neutral pt secondary circuit. Nominal voltage which is settable (50 -150 v) in the relay could be chosen according to the connection. And the nominal frequency is settable either as 50 or 60 hz.
two elements:
mbt 191 relay consists of two elements. Each element can be independently put off or set to a wide range of overfluxing setting (b1 and b2). Both elements are having definite time characteristics and four types of inverse characteristics. Each element is provided with two numbers of ^no^ contacts independent to each other.
Both elements can be selected appropriately to give two stages of protection for the equipment. In addition to these two elements, starting function of these elements are indicated by a starter led and a changeover contact is available for annunciation.