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KCS thyristor module
keyword：
KCS thyristor module
Category：
Power Energy-Saving Products
Rated voltage: split phase (single-phase); 220V balanced (three-phase): 380V
Rated frequency: 50Hz
Rated power: 5W
Product details
I. Service environment conditions
Operating ambient temperature: -25℃~+80℃
Relative humidity: at +25℃, the relative humidity can be 100% in a short time;
at +40℃, the relative humidity should be no higher than 50%
Elevation: <2000m
Rainfall intensity: ≤50mm/10min
Installation site: free of serious pollution, excessive vibration, conductive dust and chemical corrosion, without the risk of explosion, flood and fire
II. Model number meaning
III. Technical parameters
Rated operational voltage: 220V±15％ (split phase), 380V±15％ (balance type)
Operating frequency: 50HZ±5%
Control capacity: 380V class: 15Kvar, 30Kvar, 45Kvar
Control terminal voltage: DC 6V~24V; current: 50mA
IV. Installation and operation
The module consists of three thyristors enclosed on a radiator which has a thermostatic switch. A fan is provided under the radiator. When the temperature of the radiator is over 45°, the fan starts. When the temperature is over 80°, the module will not operate. The module can be installed on the rack of the compensation device. See Fig. 1 for opening in module installation; see Fig. 2 for dimensions of the module.
This module can control either 3-phase capacitor or single-phase capacitor. When the module controls 3-phase capacitor, the rated operational voltage is 380V; the capacitor can be 0.45KV; the control signal includes one positive control signal and one negative control signal. The module has 10 terminals, including 6 main terminals to connect 6~25mm2 insulated conductors (conductors must be connected by terminal) and 4 control signal terminals to connect 1.5mm2 insulated conductors. It is suitable for balance type compensation. The definition of module terminal for balance type compensation is shown in Fig. 3. When the module controls single-phase capacitor, the rated operational voltage is 220V; the capacitor can be 0.23KV; the control signal includes one positive control signal and three negative control signals; the module has 12 terminals; it is suitable for split phase type compensation. The definition of module terminal for split phase type compensation is shown in Fig. 4.
Selection of short circuit and overload protection devices for module: NT00 or RL8B fast act
Table 1
|
Module Type and Spec.
|
Max. Capacity of the Controlled Capacitor (Kvar) |
Protection Module Rated Current (A) |
|
KCSⅡ--300 |
45 |
125（66） |
|
KCSⅡ--200 |
30 |
80（44） |
|
KCSⅡ--120 |
15 |
40（22） |
Elementary diagram of module and peripheral circuit:
Fig. 5: Module elementary diagram for 3-phase compensation
Fig. 6: Module elementary diagram for single-phase compensation
This module must be used together with RVC reactive dynamic compensation controller to realize ideal reactive dynamic compensation. The total capacity calculation of the compensation device is same as that of general static compensation device, but the capacity of each step should be distributed by code, e.g. 1-2-2····or 1-2-4-4····, thus the capacity grading of each step can be detailed to reduce the quantity of modules, failure and cost, and optimize the compensation effect.
Description
K Control signal input terminal
V Control signal positive common terminal
-12G +12 Fan power input terminal
Fig. 3 Definition of module terminal (for balance type compensation)
Description
K1, K2, K3 Control signal negative input terminal
V Control signal positive common terminal
-12G+12 Fan power input terminal
Fig. 4 Definition of module terminal (for split phase type compensation)
V. Maintenance and ordering notice
The module should be checked regularly and cleaned to remove any dust or dirt according to the site environment. In case of any quality problem in service, the user should send the module back to us for repair. If the user open the cover plate for repair without authorization, we will not be responsible for any problem.
The user should provide the following information upon ordering:
1. Model number and specification;
2. Quantity;
3. Compensation mode at the device installation position;
4. Other special requirements.
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