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CJ19 switch capacitor contactor instruction manual
Applicable scope
CJ19 switching capacitor contactor used in the exchange of 50Hz / 60Hz main circuit, the voltage 220V ~ 380V power system in the heating current to 150A, for no power factor compensation device rated capacity to 50Kvar below the self-healing voltage shunt capacitor Connected and broken. The contactor is equipped with an inrush current suppressing device, which can effectively reduce the impact of the closing surge on the capacitor and suppress the overvoltage when it is broken.
Conventional compensation scheme
Conventional switching method is known as the "static" compensation method, is currently the majority of the switch factory selected switching program, the purpose of delay switching is to make the capacitor has enough discharge time to prevent too frequent Of the action on the capacitor and contactor damage, when the controller detects the need for compensation, the controller is delayed for some time (cast delay time can be set), put a group of capacitors, and continue to detect compensation, such as still need Compensation, the controller is delayed for some time, and then put a group of capacitors, until all the investment so far. As the capacitor needs to discharge, can be put into operation again, so the delay time by the capacitor discharge limit can not be set too short, the market generally only use the cycle switch program. Delay switching mode is generally based on the number of switching path number of about 60 seconds to 300 seconds to the reactive power to fill enough, it is suitable for load changes in a smooth situation compensation, if the control system selected nine electrical electrical related products , You can achieve unequal capacitance switching program, the compensation accuracy and switching time will be greatly improved.


Technical Parameters
CJ16 (19) -32 11; CJ16 (19) -32 11; CJ16 (19) -43 11; CJ16 (19) -63 21; CJ19-80 21; CJ19-95 21; CJ19-115 21; CJ19-150 21;
Rated insulation voltage Ui (V): 660V
Rated operating voltage Ue (V): 380V
Controllable Capacitor Rating 230V Rated Capacity Qn (Kvar): 6,9,10,15,22,25,30.
Rated current In (A): 15.6 22.6 25 37.5
400V Rated capacity: Qn (Kvar) 12, 16, 20, 30,40,50,70.
Rated current In (A): 17.3, 23, 29, 43, 63, 80, 95, 115, 150.
Rated operating frequency: times / h 120
Conventional heating current (Ith) A: 25, 32, 43, 63, 80, 95, 115, 150.
Rated uninterruptible current (In) A: 25, 32, 43, 63, 80, 95, 115, 150.
Rated operating current (le6b) A: 25, 32, 43, 63, 80, 95, 115, 150.
Attraction coil working range
Pull up 85% Us-25% Us
Release 25% Us-75% Us
Models of fuses with RT19-32 / 25, RT19-32 / 32, RT19-63 / 40, RT19-63 / 63.
Attraction coil voltage (50Hz) V: 24, 36, 48, 110, 127, 22.0, 380
Maximum suppression capacitor closing inrush current (A): 20ln.
Electricity life times: 10.
The maximum capacity of the three-phase power capacitor can be controlled as follows:
model
Rated insulation voltage
Rated operating voltage (V)
Amount of working current
AC6 operating current A
Long - term operating current
Amount of control capacity (Kvar)
CJ19-25
660V
220/380
25
17
25
12
CJ19-32
660V
220/380
32
twenty three
32
16
CJ19-43
660V
220/380
43
29
43
20
CJ19-63
660V
220/380
63
43
63
30
CJ19-95
660V
220/380
95
50
95
40
CJ19-115
660V
220/380
115
60
115
50
CJ19-150
660V
220/380
150
80
150
70
Structure
.CJ19 (CJ16) series switching capacitor contactor for the direct-action double breakpoint structure, the contact system is divided into two layers, the upper three pairs of pre-filled contacts and resistors constitute the suppression of inrush device. When the closing of the first time after it turns on the working contact connected, pre-filled permanent magnetic block in the spring under the reaction of the release, cut off the resistance, so that the capacitor work properly, contactor internal circuit connection shown in Figure.
18,20 Kvar contactor has two pairs of auxiliary contacts, 30Kvar contactor has three pairs of auxiliary contacts.
3. Contactor terminal with insulation cover, safe and reliable. The coil terminal is marked with voltage data to prevent fault. 12,18,20 Kvar contactor can be installed with screws, but also by the bottom of the slider buckle in the 35mm standard rail. There is a removable rectangular white card on the mask, the user can use it to print the project code.
Dimensions

The series of contactors in addition to the installation of screws can also be used to install the standard rail fast embedded. On the CJ19-25, 32,43 contactor, rail width 35mm, the CJ19-63,80,95 contactor, rail width 35mm or 75mm.
Precautions:
1, in the installation of CJ19 contactor, please first check the top auxiliary screw is tightened, so as not to suppress the inrush current shock.
2, check the main circuit screws are tightened, resulting in the connection part of the temperature rise is too high.
3, check the control power supply voltage, so as to avoid the wrong voltage level, resulting in a short product damage.
4, before installation should manually press the contactor ferrule is flexible, contact contact with the top of the first contact should be separated after contact.
5, the contactor into the line and outlet must be connected to reliable, so that when the power is caused by flashover caused by inter-phase arcing, damage contactor.
6, the capacitor closing, if encountered surge is too large, more than the contactor's ability to suppress, the resistance may be burned, then replace the resistor can continue to use.
7, reactive power compensation equipment in the discharge device used in the electrical appliances, the insulation voltage should be greater than 2Ue√ to avoid damage to the contact device due to failure of the discharge device.
The same time as
CJ19 (CJ16) series switching capacitor contactor for AC 50Hz, rated operating voltage to 400V, agreed to heat up to 90A in the circuit, for the connection and breaking the parallel capacitor group to suppress the peak current impact to improve the circuit power factor.
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