CD17,CD17A series electromagnetic actuatorDetailed product description：

CD17 and CD17A DC electromagnetic operating mechanisms are specifically designed for operating ZN28-10 series indoor high-voltage vacuum circuit breakers and other frequently operated vacuum circuit breakers. The CD17 electric operating mechanism is used to operate indoor high-voltage vacuum circuit breakers on various handcart cabinets. The CD17A electric operating mechanism is used to operate indoor high-voltage vacuum circuit breakers on various fixed cabinets. This series of electric operating mechanisms uses a DC power supply and is equipped with indoor vacuum circuit breakers for electric opening and closing, manual opening, remote control opening, and automatic reclosing operations. Its performance fully meets its technical requirements. Due to the installation holes of this product being the same as those of the CD10 electric operating mechanism, it is particularly suitable for oil-free transformation of old switchgear. The mechanical life of this product is 10000 times
1. Main technical parameters of the operating mechanism: (see table below)

serial number	Model	rated voltage	closing coil		trip coil
			Calculated current A	Resistance (ohms)	Calculated current A	Resistance (ohms)
one	CD17-I	220V	seventy-one	three	one point five	one hundred and forty-six
		110V	one hundred and forty-two	zero point seven seven	three	thirty-six point five
two	CD17-Ⅱ	220V	eighty-nine	two point five	one point five	one hundred and forty-six
		110V	one hundred and seventy-eight	zero point six one	three	thirty-six point five
three	CD17-Ⅲ	220V	one hundred and thirty-eight	one point six	one point five	one hundred and forty-six
		110V	two hundred and seventy-six	zero point four	three	thirty-six point five
four	CD17A-I	220V	eighty-nine	two point five	one point five	one hundred and forty-six
		110V	one hundred and seventy-eight	zero point six one	three	thirty-six point five
five	CD17A-Ⅱ	220V	one hundred and twenty-eight	one point seven two	one point five	one hundred and forty-six
		110V	two hundred and fifty-six	zero point four three	three	thirty-six point five
six	CD17A-Ⅲ	220V	one hundred and seventy	one point three	one point five	one hundred and forty-six
		110V	three hundred and forty	zero point three	three	thirty-six point five

2. The coil of the mechanism operates on a short-term working system, and its operating power supply is DC.
3. The reliable closing voltage of the institution is 85% to 110% of the rated working voltage. The reliable tripping voltage is 65% to 120% of the rated working voltage, and the mechanism shall not trip when the rated working voltage is less than 30%.
4. Between the conductive part and the grounding part, and between the conductive parts of different circuits. 1min power frequency withstand voltage 2000V, there should be no flashover or breakdown phenomenon. The coil can withstand 2.5 times the rated operating voltage between turns.
5. The working angle of the output shaft of this institution is 50 °~55 °, and the service life of the institution is 10000 times.

Main technical parameters

Schematic diagram of CD17 structure



Schematic diagram of CD17A structure

CD17, CD17A series electromagnetic actuator