Product Details

Specifications

1.electronic training kit
2.electronic trainer
3.UPS experiment kit
4.electronic lab kits

Electronic lab kits, UPS(Uninterruptible Power Supply)experiment kit

1.system overview

The device consists of two kinds experiment boxes:reserved UPS and on-line UPS experiment box,each experiment box can divided into sine wave and square wave two kinds. It is

suitable for training teaching of “power electronics”,”electrical control technology”,”factory electrical control”,”electrical and electronical” related to majors of electrical type,automation type,mechanical and electric type

and electrical and electronical type.also can be used for training of primary,medium and advanced electrical

and related technology.

2.technical parameters

Working power supply:AC220V/50HZ

Whole machine capacity:200W

Size:420×290×140 mm

3.system structure

3.1experiment kit structure:the kit shell is insulating plastic structure,Internal soft plastic substrate,main stress

components is aluminum alloy frame, ensure the safety of the structure and electrical.

3.2experiment kit power supply:power supply 220V±5%/50Hz,with power supply indication,power supply

indication,earth protection.electricity leakage protection.over current protection.

3.3 power supply output

1)AC power supply:sine wave:single phase 220V/50HZ ac power supply output(suit for all the loads that are supporting sine wave)

2)Square wave:50HZ output(only suit for resistance type load)

3)DC voltage signal source 12V/2A

3.4System constitution

1)reserved UPS:When the mains supply is in normal,the mains supply will supply power directly to load,When the

mains is beyond the scope of work or power failure, through the switch change to the battery inverter power

supply. No voltage regulator, has switching time, the output waveform is square wave or sine wave. Contains

the modules and circuit:

Serial number	Circuit name	circuit contained
1	bypass branch circuit	The bidirectional thyristor and its drive circuit
2	Power disconnected detection circuit	Power sampling circuit,voltage comparison circuit
3	Transformer insulating circuit	Single-phase insulating transformer
4	Filter rectifier circuit	EMC filter circuit and whole bridge rectifier circuit
5	Battery charging circuit	Voltage reduced charging circuit(charging process has three stages of fast charging, constant current and floating)
6	Battery voltage detection circuit	Voltage detection circuit,the voltage overhigh,over low protection circuit
7	Sine wave inverter circuit	Voltage conversion circuit,PWM inverter circuit
8	Square wave inverter circuit	Voltage conversion circuit,square wave inverter circuit
9	Overload protection circuit	Voltage comparison circuit,voltage following circuit, protection circuit
10	Load circuit	220V/35W lamp bead,220V single-phase AC motor
11	Display circuit	128*64 LCD display
12	battery	Voltage 12V,capacity 7Ah

2)on-line UPS:When the mains supply is in normal,rectify the mains supply and provide DC voltage to inverter,and

then provide AC supply to load from inverter,when mains supply in abnormal,will provide energy to inverter by

battery,the inverter will always in working state,ensure interrupt output.

Included module and circuit

Serial number	Circuit name	Included circuit
1	Power supply disconnected detection circuit	Power supply sampling circuit,voltage comparison circuit
2	Transformer insulating circuit	Single-phase insulating circuit
3	Filter rectifier circuit	EMC filter circuit and whole bridge rectifier circuit
4	Battery charging circuit	Voltage reduced charging circuit(the charging process has three stage of fast charging,constant current.floating charging)
5	Battery voltage detection circuit	Voltage detection circuit,voltage overhigh,over low protection circuit
6	Sine wave inverter circuit	Voltage conversion circuit,PWM inverter circuit
7	Square inverter circuit	Voltage conversion circuit,square inverter circuit
8	Overload protection circuit	Voltage comparison circuit,voltage following circuit, protection circuit
9	Load circuit	220V/35W lamp bead,220V single-phase ac motor
10	Display circuit	128*64 LCD display
11	battery	Voltage 12V,capacity 7Ah