Table:
text: Electricity sector in Paraguay
Demand
Demand
Entities Country Supply_point Voltage_kV Power_MW
FURNAS, ELECTROSUL, ELECTROBRAS Brazil Itaipu 500 7000
EBISA Argentina Yacyretá 500 1540
ENERSUL Brazil Pedro Juan Caballero 23 3
COPEL Brazil Acaray 132 50
EMSA Argentina C.A. López 132 30
TRANSNEA/EDEFOR Argentina Guarambaré 220 80

Question: Which country has emsa branches in the electricity sector in Paraguay?

Question: What power (MW) has a voltage (kV) of 500 and a country Argentina under the power sector in Paraguay?

Question: How much voltage (kV) has a country Argentina and a power (MW) greater than 30 and a supply point of Yacyretá in the electricity sector in Paraguay?