Two IDMT type relays have to be coordinated for a fault current of 10000 amps with a coordination interval of at least 0.3 second. Downstream relay is designated as A and the upstream relay as B. Calculate the TMS setting (to two decimals) of B to achieve coordination based on the data given below. Both relays have characteristics defined by IEC operating curve for Normal inverse type of protection. A is connected to a CT of 600/1 ratio and has a pick-up setting of 0.7 pu TMS of 0.20. B is connected to a CT of 1200/1 ratio and has a pick-up setting of 0.9 pu