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As the power of the installed of the HV, telco, emergency lighting, security systems and other equipment in the substation yards and buildings grows – so does its power consumption. To secure the availability of the above – the battery systems are deployed.
The battery systems to drive the HV switchgear, power the telecoms, relay protection, emergency lighting etc. in practically all the existing substations are of lead-acid chemistry. These batteries are simple and reliable.
However they take too much of the precious floor space, they might be too heavy to be installed on higher levels if there are more than one floor in the substation, and some of them require special battery rooms equipped with the emergency showers, forced ventilation, soda ash bags etc. which is all costly at the end of the day.
Aeson Power have recently developed a whole range of 110V / 120V DC battery systems based on Lithium-Ion batteries. The batteries are ranging from 50Ah to thousands of Ah – depending on the customer’s requirements. Those systems can be:
a) designed to the customer’s Specification;
b) standard system (as Aeson Power have a range of Standard systems);
Each system will be:
a) modular – battery modules are connected in series / parallel arrangement;
b) accommodated in the 19” rack;
c) each battery string will have an individual string isolator, Battery Management System, communications and controls etc.
The advantages of the Li-Ion systems are:
a) compactness – high energy density, more power on the existing floor/room space;
b) light weight;
c) reliability – no fluids, no moving parts etc;
d) convenience of local monitoring and control – all connections and indication are on the front panel;
e) remote monitoring of the state of the batteries – no need for the service personnel to travel to the site;
f) safety – the systems are of Lithium Iron Phosphate chemistry and are fire safe, no dangerous fumes etc., no need in special arrangement of the battery room;
g) easy and convenient service and installation/dismantling;
h) low maintenance (if any at all);
i) long service life;
j) extremely high cyclic ability;
All the above factors conspire to make usage of 110Vdc -120Vdc Li-Ion battery systems in substations a very sensible decision for the budget of the power utility.
Note: Aeson Power Li-Ion battery systems are not restricted to 110-120V. They can be 48V, 240V, 36V etc. – we build our systems to the client’s Specification.
