MCU Based Excitation Regulator With LCD Touch Screen And Alarm Display

Excitation Regualtor

Product Description

SMER MCU based excitation regulator is applicable to small and medium-sized synchronous generator excitation system, for stand alone and connecting to grid operations. This excitation regulator has simple structure, powerful function, east to use and reliable.

SMER excitation regulator is applicable for to the rectifier circuit with 1 to 6 SCR, including single phase half wave thyristor rectifier circuit, single phase half controlled bridge rectifier circuit, three phase half controlled bridge rectifier circuit, three phase full controlled bridge rectifier circuit.

Funcation and Hightlight

(1) Colorful LCD touch screen, with operation prompt, event and alarm display.It is a user friendly device with minimum manual operation.

(2) It is able to built-up with low setting voltage.

(3) Auto tracing grid voltage while built-up voltage, auto switching control mode to Cos(A) control, so to minimize manual operations.

(4) Easy to construct redundant excitation system.

Main Functions

• Auto Voltage Regulator
• Auto tracing grid voltage
• Power factor control
• Reactive power control
• Excitation current control
• Manual excitation output control
• Onside setting of the parameters
• Serial Modbus communication(Option)
• Fitting any SCR rectifier power supply.
• Voltage sampling rating can be set between 100 v ~ 440 v
• Generator over voltage protection. Also the voltage of the generator will be pull back to setting vale while the main breaker tripped.
• Frequency high/low protection(Option)
• Generator over current protection
• Generator over excitation current protection
• Rotation diode open circuit alarm(Option)
• Rotation diode short circuit trip(Option)
• It is able to built-up low voltage(>20%)
• English language is available for HMI
• Built-in prompt, alarm, notification messages
• Built-in redundant power supply
• It is able to built-up generator voltage only with residual voltage
• Redundant function is available
• Condition Message Notice (Option)

Environment requirement

1. Above sea level < 2500m

2. Humidity <90%

3. Temperature -10℃～＋40℃

4. No explosion hazard medium, no corrosive action on metals, and damage the electrical insulating gas and dust

5. Vibration amplitude < 0.5 mm, and frequency <600Hz.

Xi'an ERFA Switchgear Co.,Ltd is under ERFA Industries group, was established in 2006, It is located in moden enterprise central, and has a registered captial of RMB60 millions and specializes in developing, manufacturing and selling high voltage and low voltage electrical products.

Our company professional developed: ZN63A(VS1)-12 VCB (vacuum circuit breaker), ERFA (ZN73A)-12 permanent magent VCB, ZN163 (ZN)-24 VCB, ERFA-40.5 VCB, ect.