Urgent help! please answer all 3 multiple choices with explanations. each one is related. cannot post separately. so please answer all! all needed information is given!

Assume a fault occurred in the microgrid previously. The fault was selectively interrupted and as a consequence, the microgrid was reconfigured and is currently operating in islanded-mode. The DER at SWB6 is switched to a frequency and voltage control mode. Loads in the island are reduced to half. Here, The CBs operate according to the image.

Question 1 : a fault happend between SBW2 and SBW3. let, correct operation of the CBs (image 2) and sufficient short-circuit current to activate the CBs (supplied by the synchronous DER at SW6). now what will happen:

(a) The fault will be cleared by CB3.2 and CB6.2 with a follow-me action of CB3.2 (C6.2 follows the tripping of CB3.2)

(b) The fault will be cleared by CB3.1 and CB2.2 with a follow-me action of CB3.1 (C2.2 follows the tripping of CB3.1)

(c) The fault will be cleared by CB2.2 and CB3.1 with a follow-me action of CB2.2 (C3.1 follows the tripping of CB2.2)

(d) The fault cannot be cleared.

Question 2. from image 3, the trip curve for all CBs and consider that a maximum fault current of 2.4 kA is supplied by the synchronous DER at SW6. This situation creates a problem of:

(a) Sensitivity

(b) Selectivity

(c) Over-current

(d) False-tripping 10 17.

Question 3 : what is the solution to the problem described :

(a) To move the trip curve to the right

(b) To move the trip curve to the left

(c) To move the trip curve upwards

(d) To move the trip curve downwards

Legend t SWB CBI CB2 CB1.1 CB12 CB2.1 CB2.2 CB3.1 CB3.2 CB G MV circuit breaker microenergy storage medium voltage switchboard load low vog LV 1 1 1 0 0 1 1 1 100s 0.4 0.2 0.2 0.15 0.15 0,05 0.05 0.1 CB2 CB3 CB4.1 CB4.2 CB5.1 CB5.2 CB6.1 CB6.2 105 SWB1 SWB2 SWB3 CB11 C812:C8210 CB2/83.11 C83.2 C015 C82.5 10835 CB1300314 CB2:30 CB2A C83.360834 1 1 1 1 0 1 1 CBO CB1 03 0.3 0.2 02 0.15 0.15 0.1 is CB1.3 CB1.4 CB1.5 CB2.3 CB2.4 CB2.5 CB3.3 CB3.4 CB3.5 0 1 0 1 MV 0 0.1 C83 SWB4 SWB5 SWB6 CB41 CBA 2 CB5.10 0852 CB61 C882 LV CBL CB5.5 C30.5 C8430 CB44C8530 CB5.4 C8630 C86.4 GL GL Microgrid CB4.3 CB4.4 CB4.5 CB5.3 CB5.4 CB5.5 CB6.3 CB6.4 CB6.5 0 1 1 0 0 1 10kA , Legend t SWB CBI CB2 CB1.1 CB12 CB2.1 CB2.2 CB3.1 CB3.2 CB G MV circuit breaker microenergy storage medium voltage switchboard load low vog LV 1 1 1 0 0 1 1 1 100s 0.4 0.2 0.2 0.15 0.15 0,05 0.05 0.1 CB2 CB3 CB4.1 CB4.2 CB5.1 CB5.2 CB6.1 CB6.2 105 SWB1 SWB2 SWB3 CB11 C812:C8210 CB2/83.11 C83.2 C015 C82.5 10835 CB1300314 CB2:30 CB2A C83.360834 1 1 1 1 0 1 1 CBO CB1 03 0.3 0.2 02 0.15 0.15 0.1 is CB1.3 CB1.4 CB1.5 CB2.3 CB2.4 CB2.5 CB3.3 CB3.4 CB3.5 0 1 0 1 MV 0 0.1 C83 SWB4 SWB5 SWB6 CB41 CBA 2 CB5.10 0852 CB61 C882 LV CBL CB5.5 C30.5 C8430 CB44C8530 CB5.4 C8630 C86.4 GL GL Microgrid CB4.3 CB4.4 CB4.5 CB5.3 CB5.4 CB5.5 CB6.3 CB6.4 CB6.5 0 1 1 0 0 1 10kA