CT19BW/BN type spring operated mechanismDetailed product description：

CT19BW/BN type spring operated mechanism can be used to operate 35KV vacuum circuit breakers, SF6 circuit breakers with equivalent closing power, low oil circuit breakers, etc. The product performance meets the requirements of GB1984-89 AC high-voltage circuit breaker standards and product technical conditions.
The CT19BW/BN spring operated mechanism has two types of energy storage: electric motor energy storage and manual energy storage. There are two types of closing operation: closing electromagnet and manual button. There are three types of opening operation: opening electromagnet, overcurrent trip electromagnet, and manual button.

The CT19BW/BN type spring operated mechanism is based on CT19 and widely absorbs the advantages of similar products at home and abroad. Combining with the actual situation, it overcomes the shortcomings of current similar products and is designed with the latest concept. This mechanism adopts a front upper output, reducing many mechanical losses. Compared with other similar products, it has the characteristics of low noise, smooth operation, compact structure, small volume, light manual energy storage, and long service life.

Environmental conditions for use
1. Environmental temperature: not higher than+40 ℃, not lower than -25 ℃ (the upper limit of ambient air temperature during storage and transportation is+40 ℃, and the lower limit is -40 ℃);
2. Altitude: not exceeding 1000m;
3. Relative humidity: The daily average is not more than 95%, and the monthly average is not more than 90% (+25 ℃),
Saturated vapor pressure: daily average not exceeding 2.2 × 10-3Mpa, monthly average not exceeding 1.8 × 10-3Mpa;
4. There is no fire or explosion hazard, no serious pollution, no chemical corrosion, and no frequent severe vibration in the place.

Main technical parameters

The main technical parameters of the institution are shown in the table below.

serial number	project		unit	Technical data
one	Closing power		J	350~500
two	energy storage motor	model		Single phase AC/DC dual-purpose series excited motor HDZ-220B
		Rated working voltage/current		≌V/1.6～1.8A
		Rated output power	W	120~160
		Rated time	S	≤15
		Working voltage range		85-110% rated voltage
three	Combination and division Electric switch magnet	Rated working voltage	W	～110V ～220V 380V -220V -110V
		Rated working current	A	5.6 4.5 2.1 2.03 4.07
		Coil resistance at 20 ℃	W	60±0.3 23±1.5 108±5.4 24±1.35
		Working voltage range		Closing electromagnet 85-110%; Opening electromagnet 65-120%, less than 30% cannot be opened for 3 consecutive times
four	assistant switch	model		F11-12Ⅲ/L
		Frequently open touch points	Correct	six
		Number of normally closed contacts	Correct	six
		Rated breaking and closing current	A	AC12.5A; DC220V 4A,110V 8A
five	Mechanism output shaft working angle		degree	50~55
six	Number of institutional lifespan cycles		S	ten thousand
seven	Closing time of circuit breaker		S	0.030～0.060
	Opening time of circuit breaker		S	0.015～0.050
eight	One reclosing without current gap time		S	zero point three
nine	Secondary circuit working frequency withstand voltage for 1 minute		V	two thousand

2. Manual energy storage operating force: Using a 520mm energy storage handle, the maximum operating force is not greater than 150N.
3. The structure and parameters of the closing and opening electromagnet are the same and can be used interchangeably. Its power supply can be independently separated or the same power supply can be used.

CT19BW/BN type spring operated mechanism