Scope of Application
With the development of reactive compensation technology, for three-phase unbalanced loads the capacitors can be switched separately per phase to compensate reactive power phase by phase, giving higher compensation accuracy and better energy savings. For this purpose we have developed the split-phase compensation shunt capacitor, whose case is provided with a neutral-point terminal, making split-phase switching of the capacitors convenient. For the structural features, main technical parameters and ordering information of this product, refer to the technical description of our self-healing low-voltage shunt power capacitor. The BSMJ split-phase compensation capacitor consists of three single-phase capacitors connected in Y with the neutral brought out (N terminal), suitable for split-phase reactive compensation of three-phase unbalanced loads.
Type Designation
Structural Features
Three single-phase capacitors connected in Y with the neutral brought out (N terminal) form a three-single-phase common-case capacitor. In use, AN, BN and CN are independent units;
Each independent unit has its own discharge resistor, making use safer;
Any failed independent unit is isolated by an overpressure isolation device and can be disconnected reliably. Each independent unit of the BSMJ split-phase compensation capacitor is equipped with a discharge resistor and an overpressure isolation device; a failed phase can be disconnected reliably for safe operation.
Service Conditions
After the capacitor is disconnected from the supply, the residual voltage must drop to 10% of rated voltage before re-energization; this usually takes about 200 s, so the controller should have a re-closing lockout time function after disconnection. If an ordinary controller is used, a fast discharge device must be installed additionally; switches with equipotential switching are not subject to this limit. Altitude not exceeding 2000 m. Temperature category -25℃: minimum temperature -25℃, C class maximum (not exceeding 50℃, 24-h average not exceeding 40℃, annual average not exceeding 30℃). The capacitor must operate in well-ventilated conditions and must not be used in enclosed, unventilated environments. In split-phase applications it is likewise recommended to use the BSMJ split-phase compensation capacitor with a controller featuring re-closing lockout, so as to avoid re-energizing before the residual voltage drops below 10% of rated voltage.
Main Specifications, Outline & Installation Dimensions (Split-phase)
| Model | Rated voltage (kV) | Rated capacity (kvar) | Rated capacitance (μF) | Rated current (A) | Rated frequency (Hz) | Height H (mm) | Fig. No. |
|---|---|---|---|---|---|---|---|
| BSMJ0.23-3-3YN | 0.23 | 3 | 180 | 4.3 | 50 | 130 | 1 |
| BSMJ0.23-5-3YN | 0.23 | 5 | 301 | 7.2 | 50 | 130 | 1 |
| BSMJ0.23-8-3YN | 0.23 | 8 | 480 | 11.6 | 50 | 210 | 1 |
| BSMJ0.23-10-3YN | 0.23 | 10 | 602 | 14.5 | 50 | 210 | 1 |
| BSMJ0.23-12-3YN | 0.23 | 12 | 722 | 17.4 | 50 | 210 | 2 |
| BSMJ0.23-15-3YN | 0.23 | 15 | 903 | 21.7 | 50 | 210 | 2 |
| BSMJ0.23-16-3YN | 0.23 | 16 | 963 | 23.2 | 50 | 210 | 2 |
| BSMJ0.23-18-3YN | 0.23 | 18 | 1083 | 26 | 50 | 210 | 2 |
| BSMJ0.23-20-3YN | 0.23 | 20 | 1203 | 29 | 50 | 250 | 2 |
| BSMJ0.23-25-3YN | 0.23 | 25 | 1505 | 36 | 50 | 300 | 2 |
| BSMJ0.23-30-3YN | 0.23 | 30 | 1805 | 43.5 | 50 | 230 | 3 |
| BSMJ0.25-3-3YN | 0.25 | 3 | 153 | 4 | 50 | 130 | 1 |
| BSMJ0.25-5-3YN | 0.25 | 5 | 254 | 6.6 | 50 | 125 | 1 |
| BSMJ0.25-6-3YN | 0.25 | 6 | 306 | 8 | 50 | 210 | 1 |
| BSMJ0.25-8-3YN | 0.25 | 8 | 407 | 10.7 | 50 | 210 | 1 |
| BSMJ0.25-10-3YN | 0.25 | 10 | 510 | 13.2 | 50 | 210 | 1 |
| BSMJ0.25-12-3YN | 0.25 | 12 | 615 | 16 | 50 | 210 | 1 |
| BSMJ0.25-15-3YN | 0.25 | 15 | 764 | 20 | 50 | 210 | 2 |
| BSMJ0.25-16-3YN | 0.25 | 16 | 815 | 21.3 | 50 | 210 | 2 |
| BSMJ0.25-18-3YN | 0.25 | 18 | 917 | 24 | 50 | 210 | 2 |
| BSMJ0.25-20-3YN | 0.25 | 20 | 1019 | 27 | 50 | 210 | 2 |
| BSMJ0.25-25-3YN | 0.25 | 25 | 1274 | 33.3 | 50 | 250 | 2 |
| BSMJ0.25-30-3YN | 0.25 | 30 | 1529 | 40 | 50 | 300 | 2 |
Main Specifications, Outline & Installation Dimensions (Single-phase)
| Model | Rated voltage (kV) | Rated capacity (kvar) | Rated capacitance (μF) | Rated current (A) | Height H (mm) | Terminal | Fig. No. |
|---|---|---|---|---|---|---|---|
| 0.25-3-1 | 0.25 | 3 | 153 | 12 | 125 | M6 | 1 |
| 0.25-5-1 | 0.25 | 5 | 254 | 20 | 125 | M6 | 1 |
| 0.25-6-1 | 0.25 | 6 | 306 | 24 | 125 | M6 | 1 |
| 0.25-8-1 | 0.25 | 8 | 407 | 32 | 80 | M6 | 1 |
| 0.25-10-1 | 0.25 | 10 | 510 | 40 | 180 | M6 | 1 |
| 0.25-12-1 | 0.25 | 12 | 615 | 48 | 210 | M6 | 1 |
| 0.25-15-1 | 0.25 | 15 | 764 | 60 | 210 | M8 | 2 |
| 0.25-16-1 | 0.25 | 16 | 815 | 64 | 210 | M8 | 2 |
| 0.25-18-1 | 0.25 | 18 | 917 | 72 | 210 | M8 | 2 |
| 0.25-20-1 | 0.25 | 20 | 1019 | 80 | 210 | M8 | 2 |
| 0.25-25-1 | 0.25 | 25 | 1274 | 100 | 250 | M8 | 2 |
| 0.25-30-1 | 0.25 | 30 | 1529 | 120 | 300 | M8 | 2 |
| 0.4-4-1 | 0.4 | 4 | 79.6 | 10.0 | 125 | M6 | 1 |
| 0.4-5-1 | 0.4 | 5 | 99.5 | 12.5 | 125 | M6 | 1 |
| 0.4-6-1 | 0.4 | 6 | 119.4 | 15.0 | 125 | M6 | 1 |
| 0.4-7.5-1 | 0.4 | 7.5 | 149.4 | 18.8 | 125 | M6 | 1 |
| 0.4-8-1 | 0.4 | 8 | 159.2 | 20 | 125 | M6 | 1 |
| 0.4-10-1 | 0.4 | 10 | 198.9 | 25 | 180 | M6 | 1 |
| 0.4-12-1 | 0.4 | 12 | 238.7 | 30 | 180 | M6 | 1 |
| 0.4-14-1 | 0.4 | 14 | 278.5 | 35 | 180 | M8 | 1 |
| 0.4-15-1 | 0.4 | 15 | 298.4 | 37.5 | 180 | M8 | 1 |
| 0.4-16-1 | 0.4 | 16 | 318.3 | 40 | 210 | M8 | 1 |
| 0.4-18-1 | 0.4 | 18 | 358.1 | 45.0 | 210 | M8 | 1 |
| 0.4-20-1 | 0.4 | 20 | 397.9 | 50 | 210 | M8 | 1 |
| 0.4-22-1 | 0.4 | 22 | 437.7 | 55 | 210 | M8 | 2 |
| 0.4-25-1 | 0.4 | 25 | 497.4 | 62.5 | 210 | M8 | 2 |
| 0.4-30-1 | 0.4 | 30 | 596.8 | 75 | 250 | M8 | 2 |
| 0.4-35-1 | 0.4 | 35 | 696.3 | 87.5 | 250 | M8 | 2 |
| Model | Rated voltage (kV) | Rated capacity (kvar) | Rated capacitance (μF) | Rated current (A) | Height H (mm) | Terminal | Fig. No. |
|---|---|---|---|---|---|---|---|
| 0.4-40-1 | 0.4 | 40 | 796.2 | 100 | 300 | M8 | 2 |
| 0.4-45-1 | 0.4 | 45 | 895.2 | 112.5 | 300 | M8 | 2 |
| 0.4-50-1 | 0.4 | 50 | 995.2 | 125 | 230 | M10 | 3 |
| 0.4-60-1 | 0.4 | 60 | 1194.3 | 150 | 230 | M10 | 3 |
| 0.45-4-1 | 0.45 | 4 | 62.9 | 8.9 | 125 | M6 | 2 |
| 0.45-5-1 | 0.45 | 5 | 78.6 | 11.1 | 125 | M6 | 2 |
| 0.45-6-1 | 0.45 | 6 | 94.3 | 13.3 | 125 | M6 | 1 |
| 0.45-7.5-1 | 0.45 | 7.5 | 117.9 | 16.7 | 125 | M6 | 1 |
| 0.45-8-1 | 0.45 | 8 | 125.8 | 17.8 | 125 | M6 | 1 |
| 0.45-10-1 | 0.45 | 10 | 157.2 | 22.2 | 125 | M6 | 1 |
| 0.45-12-1 | 0.45 | 12 | 188.6 | 26.7 | 180 | M6 | 1 |
| 0.45-14-1 | 0.45 | 14 | 220.1 | 31.1 | 180 | M6 | 1 |
| 0.45-15-1 | 0.45 | 15 | 235.8 | 33.3 | 180 | M6 | 1 |
| 0.45-16-1 | 0.45 | 16 | 251.8 | 35.6 | 180 | M6 | 1 |
| 0.45-18-1 | 0.45 | 18 | 282.9 | 40 | 210 | M6 | 1 |
| 0.45-20-1 | 0.45 | 20 | 314.3 | 44.4 | 210 | M6 | 2 |
| 0.45-22-1 | 0.45 | 22 | 345.8 | 48.9 | 210 | M6 | 2 |
| 0.45-25-1 | 0.45 | 25 | 393.2 | 55.6 | 210 | M8 | 2 |
| 0.45-30-1 | 0.45 | 30 | 471.8 | 66.7 | 210 | M8 | 2 |
| 0.45-35-1 | 0.45 | 35 | 550.2 | 77.8 | 250 | M8 | 2 |
| 0.45-40-1 | 0.45 | 40 | 629.1 | 88.9 | 300 | M8 | 2 |
| 0.45-45-1 | 0.45 | 45 | 707.4 | 100.0 | 300 | M8 | 3 |
| 0.45-50-1 | 0.45 | 50 | 786.3 | 111.1 | 230 | M10 | 3 |
| 0.45-60-1 | 0.45 | 60 | 943.6 | 133.3 | 230 | M10 | 3 |
Outline & Installation Dimensions
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