摘要:
Die Erfindung betrifft eine Schutzvorrichtung (10) für eine Testanlage (11), wobei die Testanlage (11) zum Testen von zum Brand und Ausgasung neigenden Objekten (1), insbesondere von Lithium-Ionen-Batterien dient und wobei die Testanlage (11) eine über ein türartiges Öffnungselement (14) unter Zwischenlage eines Dichtelementes verschließbare Prüfkammer (12) und eine in der Prüfkammer (12) angeordnete Prüfeinrichtung (13) für die Objekte (1) aufweist. Erfindungsgemäß ist es vorgesehen, dass die Prüfkammer (12) eine Abzugseinrichtung (15) für Gase aufweist und von einer abgeschlossenen Umhausung (20) umgeben ist.
摘要:
When a rechargeable battery of a life safety device reaches its end of life, the life safety device provides an audible signal indicating that replacement is required. When the device is disconnected from line power, the rechargeable battery still contains a significant amount of energy. The device automatically begins controlled discharge the battery until the stored energy has been reduced to a safe level for disposal of the life safety device and its battery.
摘要:
In accordance with the invention, there is a battery defect detection method comprising applying a current ramp to a battery (750), determining a first time (t 1 ) when a current of the battery (750) reaches a maximum current (I peak ), and determining a second time (t 2 ) when a terminal voltage of the battery (750) reaches a maximum voltage (V peak )- The method also includes determining a differential (d), wherein (d) = /(t 1 ) - (t 2 )/, and wherein (d) corresponds to a magnitude of defects in the battery (750).
摘要:
Battery system is widely used in emergent power plant or communication network power plant and its effective management is important. When any one of batteries connected to each other in series is failed during operation of the battery system, since reliability of the system cannot be secured, a problem is arisen to stable operation of the communication network. In a method of separating inferior battery, the battery is operated in floating charge state without separation to generate square current containing charge current and easily generated to flow through the battery cell, voltage signal generated from terminal voltage of the battery by the measuring signal is processed such that only internal impedance voltage signal is separated from harmonics ripple voltage and noise voltage by a synchronized detection calculating algorithm to calculate the internal impedance or effective value thereof (resistance component). When the algorithm is applied after filtering only fundamental frequency and similar component by general filter, measuring precision can be improved and measuring time can be reduced.
摘要:
A system for non-destructive non-contact quality inspection of dry electrode units of energy storage includes an eddy current-based inspection system having a conveyor belt, and a hollow dielectric shell. An outer surface of the shell has a plurality of spaced apart measuring transducers. Each of the transducers include a feed-through eddy current probe and at least two strap capacitors spatially linked therewith. In the related method, an electrode unit to be inspected is placed on the conveyor belt and enters and moves through the dielectric shell. The electrode unit is excited using a magnetic field from the eddy current probe as it passes by each of the plurality of transducers, where eddy currents at a plurality of frequencies are induced in the electrode unit. The modulation characteristics of impedance at a plurality of frequencies are measured by the probes, and from the impedance data it is determined whether the electrode unit is defective.
摘要:
In accordance with the invention, there is a battery defect detection method comprising applying a current ramp to a battery (750), determining a first time (t 1 ) when a current of the battery (750) reaches a maximum current (I peak ), and determining a second time (t 2 ) when a terminal voltage of the battery (750) reaches a maximum voltage (V peak )- The method also includes determining a differential (d), wherein (d) = /(t 1 ) - (t 2 )/, and wherein (d) corresponds to a magnitude of defects in the battery (750).
摘要:
An electronic battery tester (16) for testing a storage battery (12) provides a test output (11) indicative of condition of the battery. Electronic measurement circuitry (2) provides a measurement output related to a condition of the battery. The battery condition fis determined based upon one or more responses to one or more queries provided to an operator. The responses are used to determine battery type.
摘要:
An electronic battery tester (16) for testing a storage battery (12) determines a condition of the battery (12). The condition is a relative condition and is a function of a dynamic parameter of the battery (12) and an empirical input variable (9).
摘要:
A battery tester device that may be integrated into a label of battery. The battery tester device includes first dielectric layer, a conductive layer adjacent the first dielectric layer, a temperature sensitive indicator layer in thermal contact with the conductive layer, and thermal insulation adjacent the conductive layer. The thermal insulation includes a second dielectric layer and thermally insulative material combined with the second dielectric layer for enhancing the structural strength of the second dielectric layer.
摘要:
The invention concerns a process and a device for automatic testing of an accumulator system of an interruption-free power supply installation, comprising at least one individual accumulator. To monitor and test the individual accumulators of the accumulator system, an additional accumulator is connected in parallel with an individual accumulator which is then removed from the accumulator system. The accumulator can then be tested and interchanged if found to be defective. The invention makes it possible to interchange individual accumulators with known defects while maintaining the possibility of an emergency power supply in the event of a blackout in the mains network.