50 is the ANSI device number for an instantaneous overcurrent relay. The G suffix stands for "ground." A 50G protection relay trips the circuit breaker without time delay when it detects a ground fault on the circuit.
LBB is local breaker protection
Directionalized relays are relays that use a polarizing circuit to determine which "direction" (in the zone of protection, or out of the zone protection) a fault is. There are many different types and different polarizing methods - ground polarizing, voltage polarizing, zero sequence voltage polarizing, negative sequence polarizing, etc. The basic operation of this relay is just like any nondirectional relay, but with an added torque control - the directionalizing element. This element allows the relay to operate when it is satisfied that the fault is within the zone of protection (ie not behind where the relay is looking).
A device with an overload protection used to control a motor is an Overload Relay.
Lock out Relay is the Master Trip relay( It is a latch relay once operated we have to reset it by manual) Which is used for Generator protection,Transformer protection,Turbine protection (Fixed in indoor Panel, Standard manufacturer only making those relays) if it operated because of any fault in above the after clearing all the fault we have to reset it by hand(normally available 110Volts or 220Volts DC).
In the event of a busbar fault, the next level of protection will operate and disconnect the busbars.
No there not same
over current protection relay
LBB is local breaker protection
differential protection relay
50g of what ?
reactance relay is used for distance protection of the transmission line....
On a 1997 Ford Contour : The Reverse Voltage Protection relay location is marked ( D1 )
There are 20 50g in 1kg. This can be calculated by dividing 1000g (1kg) by 50g to get the result.
5 of them make 50g
Yards are a linear measurement. 50g (meaning grams) is a weight. So there can't be any yards in 50g.
When I was there last year, 50g cost 6.40 euros but make sure that it states 50g and not 40g.......
50