JPH02193540A - Sequential driving device - Google Patents

Abstract

PURPOSE:To effect sequential restarting quickly by a method wherein the quantity of electricity, supplied from an emergency power source facility to a load upon power service interruption, is informed from the emergency power source facility to a sequential starting circuit to effect restarting while judging the existence of an abnormality in the load from the quantity of electricity. CONSTITUTION:When the service of a power source is interrupted, a service interruption signal is sent to a sequential starting circuit 1 and an emergency power source facility 2. The sequential starting circuit 1 sends starting signals to disaster prevention power suppliers A1,...An in accordance with a predetermined sequence to supply power sequentially from the emergency power source facility 2 through lines (l). The emergency power source facility 2 measures the capacity of the load and informs data to the sequential starting circuit 1. The sequential starting circuit 1 monitors the data and when it is judged that the data is abnormal, the supply of power for corresponding disaster prevention power supplier Ai is stopped and the power is supplied to the subsequent disaster prevention power supplier Ai+1. According to this method, overload operation is prevented and sequential restarting is effected quickly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sequential drive device for disaster prevention power.

[Conventional technology]

Conventionally, when a power outage occurs, the sequential drive circuit for disaster prevention power
- The disaster prevention power that had been running frequently stopped. When the emergency power supply starts, the disaster prevention power is sequentially started in order to prevent problems caused by overload operation of the emergency power supply due to inrush current. Because the equipment was only started one by one (approximately) at a time, if a problem occurred with a specific device during restart, the emergency power supply would be overloaded, no matter how much time lag was set. There was a possibility that all disaster prevention power sources would become inoperable.

[Problem to be solved by the invention] By starting the disaster prevention power sequentially by power supply from the emergency power supply equipment during a power outage while constantly detecting the output capacity for the load of the emergency power supply. It is necessary to prevent overload operation.

[Means to solve the problem]

The present invention is configured to sequentially send the value of the capacity of power supply from the emergency power supply equipment to the load during a power outage from the emergency power supply equipment to the startup circuit, and determines whether the load is normal or abnormal based on the amount of usage and restarts the power supply. The configuration is such that the timing of the startup time is determined.

〔Example〕

Embodiments will be described below with reference to the drawings. 1 is a sequential startup path;
2 is emergency power supply equipment, A1 to An are disaster prevention power, A
, f are power lines from the emergency power supply equipment 2 to the protection powers Al to An.

Now, in the event of a power outage, power outage signals are sequentially sent to the starting circuit 1 and the emergency power supply equipment 2. Thereafter, a starting signal is sequentially sent from the starting circuit 1 to, for example, the disaster prevention power A1, and the disaster prevention power AI is started. The power at that time is sent from the emergency power supply equipment 2. At this time, the emergency power supply equipment 2 detects and monitors the load capacity such as the current consumption state or voltage fluctuation state of the current load. This data is then sequentially sent to the starting circuit 1. The sequential starting circuit l changes the timing of the starting signal while monitoring this data.

For example, if disaster prevention power A is started one by one, if disaster prevention power An breaks down, power will continue to be supplied for more than the necessary time, so a stop signal is issued to this disaster prevention power An, and the next disaster prevention power A is started. It will issue a start signal. Furthermore, if the disaster prevention power An completes its operation earlier than the predetermined sequential activation timing, the sequential activation signal to the next disaster prevention power A is sent earlier than the usual timing.

It is also possible to display and issue a warning for troublesome devices when restarting.

〔Effect of the invention〕

As described above, according to the present invention, values such as the capacity of power supply from the emergency power supply equipment to the load during a power outage are sequentially sent from the emergency power supply equipment to the startup circuit, and depending on the usage amount, the value of the power supply capacity etc. Since the system is configured to determine whether the system is normal or abnormal and determine the restart time timing, it is possible to prevent overload operation, speed up sequential restarts, and notify troublesome devices.

[Brief explanation of the drawing]

The drawing is a system diagram of an embodiment of the present invention. 1...Sequential start-up circuit, 2...Emergency power supply equipment, A1~
An...Disaster prevention power! ,! ...It is a power line. that's all

Claims (1)

[Claims] 1) In the event of a power outage, values such as the capacity of the power supply from the emergency power supply equipment to the load are sequentially sent from the emergency power supply equipment to the startup circuit, and the load is determined to be normal or abnormal based on the usage amount and restarted. A sequential drive configured to determine the timing of time.