TBB Low Voltage Reactive Power Compensation Equipment
Jinneng electric TBB Low voltage reactive power compensation equipment is intelligent reactive power compensation device,this low voltage reactive power compensation cabinet is new generation energy-saving products developed by our company. Our company integrated Microcomputer control system to implement intelligent automatic tracking compensation for reactive power.
- Product Introduction
Jinneng electric TBB Low voltage reactive power compensation equipment is intelligent reactive power compensation device,this low voltage reactive power compensation cabinet is new generation energy-saving products developed by our company. Our company integrated Microcomputer control system to implement intelligent automatic tracking compensation for reactive power.
The reactive power automatic compensation controller samples the reactive current of the power grid. After the microcomputer within this controller analyzes and processes the sampled current, it sends the control signal to the output relay. The output relay then controls the CJ19 type dedicated contactor for switching capacitors in the compensation cabinet, thereby controlling the switching of the BSMJ0.4 series self-healing low-voltage parallel capacitors, achieving the purpose of improving the power factor of the power grid, reducing line losses and enhancing voltage quality.
Product characteristics:
| Product Features | Details |
|---|---|
| Compact Size | Small size, easy to install and maintainance. Capacitive compensation specifically designed for three-phase transformers with a rated voltage of 380V and a capacity ranging from 50 to 1000 kVA. |
| Microcomputer Control | Complete functions and reliable performance with automatic compensation. |
| LED Digital Display | Displays power grid factors with a range for lag (0.00~0.99) and lead (0.00-0.99). |
| User-Friendly Interface | The panel features three function setting keys for easy setting of Cosφ, delay and overvoltage values for easy human-machine interaction |
Technical parameters
| Model | Rated Capacity (kVar) | Capacitor Configuration | Dimensions (mm) |
|---|---|---|---|
| TBB-22.5-3 | 22.5 | 3 × 7.5kVar | 1500 × 500 × 370 |
| TBB-36-3 | 36 | 3 × 12kVar | 1500 × 500 × 370 |
| TBB-40-3 | 40 | 4 × 10kVar | 1500 × 500 × 370 |
| TBB-60-3 | 60 | 6 × 10kVar | 1700 × 700 × 370 |
| TBB-72-3 | 72 | 6 × 12kVar | 1700 × 700 × 370 |
| TBB-90-3 | 90 | 6 × 15kVar | 1700 × 700 × 370 |
| TBB-120-3 | 120 | 8 × 15kVar | 1600 × 600 × 450 |
| TBB-140-3 | 140 | 10 × 14kVar | 1600 × 600 × 450 |
| TBB-180-3 | 180 | 10 × 18kVar | 1600 × 600 × 450 |
| TBB-220-3 | 220 | 10 × 22kVar | 1700 × 800 × 450 |
| TBB-300-3 | 300 | 10 × 30kVar | 2200 × 800 × 600 |
| TBB-360-3 | 360 | 12 × 30kVar | 2200 × 1000 × 600 |
Note: The above parameters of TBB low voltage reactive power compensation equipment are typical values for reference, can be customized according to customer requirements, we reserves the right to change the data.
Application scheme:
1.Conventional (Static) Reactive Power Compensation Systems
Conventional compensation systems, often referred to as "static" compensation, are the most widely used solution in industrial and commercial power systems. These systems rely on fixed capacitor banks switched by electromechanical contactors or relays, with controlled timing to ensure stable operation.
2.Hybrid Switching Compensation System (Composite Switch Solution)
The hybrid switching compensation system combines the advantages of thyristors (SCRs) and latching relays to achieve zero-crossing switching without inrush currents, while maintaining zero power loss during steady-state operation. This makes it an ideal solution for reactive power compensation, especially in urban/rural grid upgrades.
3.Dynamic Fast Compensation and Harmonic Filtering Solution
Dynamic fast compensation systems utilize thyristor (SCR)-based switching to achieve rapid, precise reactive power correction (typically within 1–5 seconds). These systems are ideal for highly variable loads (e.g., welding machines, stamping presses, oilfield equipment) and applications requiring harmonic filtering
Calculation Table for Required Reactive Power Compensation
This table helps determine the reactive power (in kVar) needed per kW of load to improve the power factor from cosφ1 (current) to cosφ2 (target).
Table Usage:
Vertical Column (Left): Current power factor (cosφ1).
Horizontal Row (Top): Target power factor (cosφ2).
Intersection Cells: Reactive power (kVar) required per kW of load.
Reactive Power Compensation Table (kVar/kW)
(Note: Values are truncated for clarity; refer to the original table for full precision.)
Example Calculation
Scenario:
Total Load: 400 kW
Current Power Factor (cosφ1): 0.64
Target Power Factor (cosφ2): 0.96
Capacitor Model: BSMJ0.45-30-3 (30 kVar per unit)
Steps:
From the table, locate the intersection of cosφ1=0.64 cosφ2=0.96
Required reactive power per kW = 0.91 kVar/kW.
Total Compensation Needed:
Qtotal=0.91 kVar/kW×400 kW=364 kVar
Number of Capacitors:
Units=364 kVar/30 kVar/unit≈12 units
Result: Install 12 units of BSMJ0.45-30-3 capacitors.
Cooperated customers:
Our customers including State grid, China Southern Power Grid, China Huaneng, Sdic Power, CHD, TK, Sinopec, Petrochina, China Guodian, Aux, China Railway, China Railway Construction, CNNC, China mobile,Life's Good,Tianneng, China3 Gorges, CR power, Siemens and etc.
FAQ
Q: What's your payment term?
A: A:T/T, 30% deposit, 70% balance before shipment, but it depend on actual situation.
Q: Whats the delivery time ?
A: A:It depend on different products and different quantities. Generally speaking, it takes about 7-21 days. If the quantity is very big or various types , we should check with PMC and negotiation.
Q: Please tell the standard package?
A: A:Normally are paper cartons, some heavy products use wooden box, and for big items just use paper card to protect 4 corners, but also can pack it according to your requirement.
Q: Could you provide us with Form A, FORM E, FTA or C/O?
A: A:No problem, we can prepare relative documents according to your requirement.
Q: Can we do our logo ?
A: A: Generally speaking no problem, but it depend on products also, it is negotiable.
Q: Can you make customized product??
A:We can accept customized product if Qty is large, R&D and manufacture the products according to your requirement.
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