CN209150791U - A kind of emergency circuit using single inverter as single load supplying - Google Patents
A kind of emergency circuit using single inverter as single load supplying Download PDFInfo
- Publication number
- CN209150791U CN209150791U CN201822054788.0U CN201822054788U CN209150791U CN 209150791 U CN209150791 U CN 209150791U CN 201822054788 U CN201822054788 U CN 201822054788U CN 209150791 U CN209150791 U CN 209150791U
- Authority
- CN
- China
- Prior art keywords
- inversion
- circuit
- power supply
- phase
- frequency converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of emergency circuits for using single inverter as single load supplying, with three-phase input power supply, three-phase input power supply passes sequentially through circuit breaker Q 1, rectifier, inversion/frequency converter and powers to the load, the input side of three-phase input power supply is additionally provided with bypass circuit, detecting voltage by three phase circuit, charger and battery pack are sequentially arranged on bypass circuit, the three-phase input voltage value that detecting voltage by three phase circuit is detected according to it, battery pack is controlled to inversion/inverter supply by contactor KM1, and inversion/frequency converter connects control panel；The utility model structure is simple, ingenious in design, it is ensured that the reliability of the emergency service of motor load and its stationarity of starting, it is therefore prevented that the impact of power supply unit when motor start-up.
Description
Technical field
The utility model relates to a kind of emergency circuits, especially a kind of that single inverter is used to answer urgent telegram for single load supplying
Road.
Background technique
Currently, in life or the emergency of the motor of water pump, blower that workshop is standing or the motor of other equipment
Power-supply service is not too much perfect, and these motor often cause certain rush to power supply unit during starting
It hits, thus, how to solve the emergency service of motor and ensures that the stationarity of its starting is that technology urgently to be solved is currently answered to ask
Topic.
Summary of the invention
The purpose of this utility model seeks to solve current motor and exists be difficult to solve emergency service and its starting is steady
Property the problem of, a kind of emergency circuit using single inverter as single load supplying is provided thus.
The concrete scheme of the utility model is: a kind of emergency circuit using single inverter as single load supplying has three
Phase input power, three-phase input power supply pass sequentially through circuit breaker Q 1, rectifier, inversion/frequency converter and power to the load, three-phase input
The input side of power supply is additionally provided with bypass circuit, and detecting voltage by three phase circuit, charger and battery are sequentially arranged on bypass circuit
Group, the three-phase input voltage value that detecting voltage by three phase circuit is detected according to it control battery pack to inverse by contactor KM1
Change/inverter supply, inversion/frequency converter connect control panel.
Be connected with two sets of inversion/frequency converters on rear side of rectifier described in the utility model, every set inversion/frequency converter individually to
One motor load power supply, controls two sets of inversion/frequency converter switchover operations by control panel.
The utility model structure is simple, ingenious in design, it is ensured that the reliability of the emergency service of motor load and its opens
Dynamic stationarity, it is therefore prevented that the impact of power supply unit when motor start-up.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Referring to Fig. 1, the utility model provides a kind of emergency circuit for using single inverter as single load supplying, has three
Phase input power, three-phase input power supply pass sequentially through circuit breaker Q 1, rectifier, inversion/frequency converter and power to the load, three-phase input
The input side of power supply is additionally provided with bypass circuit, and detecting voltage by three phase circuit, charger and battery are sequentially arranged on bypass circuit
Group, the three-phase input voltage value that detecting voltage by three phase circuit is detected according to it control battery pack to inverse by contactor KM1
Change/inverter supply, inversion/frequency converter connect control panel.
Two sets of inversion/frequency converters are connected on rear side of rectifier described in the present embodiment, every set inversion/frequency converter is individually to one
Platform motor load power supply controls two sets of inversion/frequency converter switchover operations by control panel, so that the using and the reserved are constituted, it is full
Foot fire-fighting requirements.
The principles of the present invention are as follows:
When three-phase input is normal, power supply is rectified to provide direct current to inverter, while charger charges to battery pack,
If three-phase input has a power failure or is lower than 380V-15%, KM1, which is attracted, provides direct current to inverter by battery pack, when needs are to electricity
When machine load supplying, enabling signal is given by control panel, inverter exports immediately, exports from 0HZ-50HZ frequency conversion to motor
Variable frequency starting is carried out, when frequency reaches 50HZ, motor keeps normal table operation, ensures that the flat of motor start-up
Stability, it is therefore prevented that the starting of power supply unit is impacted.
Claims (2)
1. a kind of emergency circuit for using single inverter as single load supplying, has three-phase input power supply, it is characterized in that: three-phase is defeated
Enter power supply pass sequentially through circuit breaker Q 1, rectifier, inversion/frequency converter to motor load power, the input of three-phase input power supply
Side is additionally provided with bypass circuit, and detecting voltage by three phase circuit, charger and battery pack, three-phase voltage are sequentially arranged on bypass circuit
The three-phase input voltage value that detection circuit is detected according to it controls battery pack by contactor KM1 and supplies to inversion/frequency converter
Electricity, inversion/frequency converter connect control panel.
2. a kind of emergency circuit for using single inverter as single load supplying according to claim 1, it is characterized in that: described
Two sets of inversion/frequency converters, every independent Xiang Yitai motor load power supply of set inversion/frequency converter, by controlling are connected on rear side of rectifier
Panel processed controls two sets of inversion/frequency converter switchover operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822054788.0U CN209150791U (en) | 2018-12-08 | 2018-12-08 | A kind of emergency circuit using single inverter as single load supplying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822054788.0U CN209150791U (en) | 2018-12-08 | 2018-12-08 | A kind of emergency circuit using single inverter as single load supplying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209150791U true CN209150791U (en) | 2019-07-23 |
Family
ID=67289443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822054788.0U Expired - Fee Related CN209150791U (en) | 2018-12-08 | 2018-12-08 | A kind of emergency circuit using single inverter as single load supplying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209150791U (en) |
-
2018
- 2018-12-08 CN CN201822054788.0U patent/CN209150791U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 Termination date: 20211208 |