General Safety Information
Categorization of the hazard Areas
REGATRON
Performance. Precision. Quality.
TC.ACS - Device Manual (V04.60) - 26.4.2022
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1.3.2.5 Handling Storage Systems containing large Amounts of Energy
Modern energy storage systems are able to absorb very large amounts of energy. This situation has the following
consequences:
• The cabling should not just comply with the maximum charging and discharging currents to be expected, to
some extent significantly higher peak currents are to be expected during switching processes.
• A short circuit or failure can be very serious in the case of storage elements containing large amounts of
energy. Due to the high currents serious injuries and serious damage can be caused. The following, incomplete
list indicates some of this damage:
Burning of wires and connectors
Sparking
Fires, insulation fires
Arcing, welding
Electric shocks
• Never short-circuit energy storage systems to discharge them! Always use a suitable discharge resistor of
appropriate power rating!
• Visibly secure a discharged energy storage element using a short-circuit bridge.
• Always monitor the maximum storage element voltage, also during practical test operation.
• Use a device that clearly indicates the charge state of the energy storage element, e.g. by monitoring the
voltage.
1.3.3 Mains Connection Area
When a TC.ACS power supply device is switched on, there may be an uneven load on the three phases; this
uneven load may cause older residual current circuit breakers to trip. Here a modern make of residual current
circuit breaker is to be used that will tolerate such asymmetries during the switch-on process.
1.3.4 Surrounding Area
TC.ACS power supply devices are generally forced-air cooled (some are water-cooled in addition). Despite the
very high efficiency, a power loss occurs in the components that must be dissipated in the form of heat to the
surroundings. The energy is dissipated with the aid of forced ventilation to the rear of the TC.ACS device. It is to
be ensured that the rooms in which TC.ACS power supply devices operate are cool so that the heat produced can
be removed. It is to be ensured that there are no undesirable effects (e.g. stirring up of dust or sand, deformation
due to the action of heat etc.) due to the flow of air and the heat, which at high load may be powerful.
1.3.5 Area related to Interaction with the Device
Compliance with the design data for the specific device is a prerequisite for malfunction-free operation. Load
systems can have significant effects on the power source. The following points are to be noted:
• The maximum voltage specified must not be exceeded.
• Protective measures must be provided against voltage spikes on the load side and their function must be
monitored (voltage spikes could damage the filter capacitors and semiconductors in the device).
• Periodic over currents are to be avoided.
• The ripple currents produced on the load side are to be monitored to avoid overloading filter capacitors; in
case of doubt ask the manufacturer.
• The device is always to be operated within the permissible temperature range. High temperatures will
significantly reduce the service life of various components.
