Scope of Application
The self-healing low-voltage shunt power capacitor is suitable for 50 Hz or 60 Hz low-voltage power systems, mainly used to improve power factor, reduce reactive power losses, improve voltage quality and release transformer capacity. It is a highly recommended energy-saving product. The product complies with national standard GB/T12747-2004 and IEC60831-1996. The BSMJ self-healing low-voltage shunt power capacitor adopts a metallized polypropylene film self-healing structure and is used for reactive power compensation in 50 Hz/60 Hz low-voltage power systems.
Type Designation
Structural Features
Compact, lightweight, easy to install
Using high-quality metallized polypropylene film as the dielectric together with a unique structural design, the capacitor has only 1/4 of the volume and 1/5 of the weight of older products;
Low loss, low heat generation, low temperature rise
The new spray-metallizing process and the uniquely thickened metallized film edges greatly enhance the inrush-current withstand, stabilize performance and greatly extend service life; the capacitor's own loss is reduced, with an actual value below 0.08%, giving low heat, low temperature rise and excellent energy saving. The BSMJ self-healing low-voltage shunt power capacitor has built-in self-discharge resistors and an overpressure protection device, and its case is treated with double-sided anti-corrosion, suitable for reactive power compensation and power factor improvement in low-voltage distribution systems.
Excellent self-healing performance
Local dielectric breakdown self-heals rapidly and normal operation resumes, greatly improving reliability;
Safety
Built-in discharge resistors and protective devices ensure safe and reliable use;
Leak-free and environmentally friendly: microcrystalline wax is used as the impregnating agent, solid at room temperature with a melting point above 70℃; no oil leakage occurs during operation, avoiding environmental pollution. It has both the structural features of a dry-type capacitor and the advantages of an impregnated one. In addition, the unique impregnation process makes operation more reliable;
Corrosion-resistant anti-counterfeit case: the printed-tin case undergoes special double anti-corrosion treatment, greatly improving corrosion resistance, with a unique anti-counterfeit design, fine and elegant. When selecting the BSMJ self-healing low-voltage shunt power capacitor, use a controller with re-closing lockout to ensure re-energization only after the residual voltage drops below 10% of rated voltage.
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.
| Rated voltage | 230 V, 250 V, 400 V, 450 V, 525 V, 690 V, 750 V, 1050 V, 1200 V; other voltages available on special order; |
|---|---|
| Rated capacity | 1-60 kvar for 0.4~0.69 kV; capacities at other voltage levels to be agreed separately; |
| Rated frequency | 50 Hz or 60 Hz |
| Capacity tolerance | -5%~+10% |
| Tangent of loss angle (tanδ) | -5%~+10% |
| Voltage withstand | Between terminals: 2.15 × rated voltage for 2 s; between terminals and case: 2Un+2 kV or 3 kV, whichever is higher, for 10 s, without permanent puncture or flashover |
| Maximum permissible overvoltage | At 1.1 × rated voltage: not exceeding 8 h per 24 h; at 1.15 × rated voltage: not exceeding 30 min per 24 h; at 1.2 × rated voltage: not exceeding 5 min; at 1.3 × rated voltage: not exceeding 1 min; |
| Maximum permissible current | Continuous operation at current not exceeding 1.3 × rated current. Transient overcurrent, taking into account overvoltage, positive capacitance tolerance and harmonics, shall not exceed 1.43 × rated current; |
| Connection | Delta (△), star (Y), star with neutral brought out (YN), three-section, single-phase and other connections; other connections to be agreed according to user requirements; |
| Self-discharge performance | After de-energization, the residual voltage drops from 2Un to below 50 V within 3 minutes; |
| Applicable standards | GB/T 12747-2004 IEC60831-1996 |
| Model | Rated voltage (kV) | Rated capacity (kvar) | Rated capacitance (μF) | Rated current (A) | Height H (mm) | Terminal | Fig. No. |
|---|---|---|---|---|---|---|---|
| 0.4-1-3 | 0.4 | 1 | 19.9 | 1.4 | 105 | M6 | 1 |
| 0.4-2-3 | 0.4 | 2 | 39.8 | 2.9 | 105 | M6 | 1 |
| 0.4-3-3 | 0.4 | 3 | 59.7 | 4.3 | 105 | M6 | 1 |
| 0.4-4-3 | 0.4 | 4 | 79.6 | 5.8 | 125 | M6 | 2 |
| 0.4-5-3 | 0.4 | 5 | 99.5 | 7.2 | 125 | M6 | 2 |
| 0.4-6-3 | 0.4 | 6 | 119.4 | 8.7 | 125 | M6 | 2 |
| 0.4-7.5-3 | 0.4 | 7.5 | 149.2 | 10.8 | 125 | M6 | 2 |
| 0.4-8-3 | 0.4 | 8 | 159.2 | 11.6 | 125 | M6 | 2 |
| 0.4-10-3 | 0.4 | 10 | 198.9 | 14.4 | 180 | M6 | 2 |
| 0.4-12-3 | 0.4 | 12 | 238.7 | 17.3 | 180 | M6 | 2 |
| 0.4-14-3 | 0.4 | 14 | 278.5 | 20.2 | 180 | M6 | 2 |
| 0.4-15-3 | 0.4 | 15 | 298.4 | 21.7 | 180 | M6 | 2 |
| 0.4-16-3 | 0.4 | 16 | 318.3 | 23.1 | 210 | M6 | 2 |
| 0.4-18-3 | 0.4 | 18 | 358.1 | 26.0 | 210 | M6 | 2 |
| 0.4-20-3 | 0.4 | 20 | 397.9 | 28.9 | 210 | M6 | 2 |
| 0.4-22-3 | 0.4 | 22 | 437.7 | 31.8 | 210 | M8 | 3 |
| 0.4-24-3 | 0.4 | 24 | 477.4 | 34.6 | 210 | M8 | 3 |
| 0.4-25-3 | 0.4 | 25 | 497.4 | 36.1 | 210 | M8 | 3 |
| 0.4-28-3 | 0.4 | 28 | 557.3 | 40.4 | 250 | M8 | 3 |
| 0.4-30-3 | 0.4 | 30 | 596.8 | 43.3 | 250 | M8 | 3 |
| 0.4-35-3 | 0.4 | 35 | 696.3 | 50.5 | 300 | M8 | 3 |
| 0.4-40-3 | 0.4 | 40 | 796.2 | 57.7 | 300 | M8 | 3 |
| 0.4-45-3 | 0.4 | 45 | 895.2 | 65.0 | 230 | M10 | 4 |
| 0.4-50-3 | 0.4 | 50 | 995.2 | 72.2 | 230 | M10 | 4 |
| 0.4-55-3 | 0.4 | 55 | 1094.2 | 79.4 | 230 | M10 | 4 |
| 0.4-60-3 | 0.4 | 60 | 1194.3 | 86.6 | 260 | M10 | 4 |
| 0.45-1-3 | 0.45 | 1 | 15.7 | 1.3 | 105 | M6 | 1 |
| 0.45-2-3 | 0.45 | 2 | 31.4 | 2.6 | 105 | M6 | 1 |
| 0.45-3-3 | 0.45 | 3 | 47.2 | 3.8 | 105 | M6 | 1 |
| 0.45-4-3 | 0.45 | 4 | 62.9 | 5.1 | 125 | M6 | 1 |
| 0.45-5-3 | 0.45 | 5 | 78.6 | 6.4 | 125 | M6 | 2 |
| 0.45-6-3 | 0.45 | 6 | 94.3 | 7.7 | 125 | M6 | 2 |
| 0.45-7.5-3 | 0.45 | 7.5 | 117.9 | 9.6 | 125 | M6 | 2 |
| 0.45-8-3 | 0.45 | 8 | 125.8 | 10.3 | 125 | M6 | 2 |
| 0.45-10-3 | 0.45 | 10 | 157.2 | 12.8 | 125 | M6 | 2 |
| 0.45-12-3 | 0.45 | 12 | 188.6 | 15.4 | 180 | M6 | 2 |
| 0.45-14-3 | 0.45 | 14 | 220.1 | 18.0 | 180 | M6 | 2 |
| 0.45-15-3 | 0.45 | 15 | 235.8 | 19.2 | 180 | M6 | 2 |
| 0.45-16-3 | 0.45 | 16 | 251.5 | 20.5 | 180 | M6 | 2 |
| 0.45-18-3 | 0.45 | 18 | 282.9 | 23.1 | 210 | M6 | 2 |
| 0.45-20-3 | 0.45 | 20 | 314.4 | 25.7 | 210 | M6 | 2 |
| 0.45-22-3 | 0.45 | 22 | 345.8 | 28.3 | 210 | M8 | 3 |
| 0.45-24-3 | 0.45 | 24 | 377.3 | 30.8 | 210 | M8 | 3 |
| 0.45-25-3 | 0.45 | 25 | 393.2 | 32.1 | 210 | M8 | 3 |
| 0.45-28-3 | 0.45 | 28 | 440.3 | 35.9 | 210 | M8 | 3 |
| 0.45-30-3 | 0.45 | 30 | 471.8 | 38.5 | 210 | M8 | 3 |
| 0.45-35-3 | 0.45 | 35 | 550.2 | 44.9 | 250 | M8 | 3 |
| 0.45-40-3 | 0.45 | 40 | 629.1 | 51.3 | 300 | M8 | 3 |
| 0.45-45-3 | 0.45 | 45 | 707.7 | 57.7 | 300 | M8 | 3 |
| Model | Rated voltage (kV) | Rated capacity (kvar) | Rated capacitance (μF) | Rated current (A) | Height H (mm) | Terminal | Fig. No. |
|---|---|---|---|---|---|---|---|
| 0.45-50-3 | 0.45 | 50 | 786.3 | 64.2 | 230 | M10 | 4 |
| 0.45-55-3 | 0.45 | 55 | 864.5 | 70.6 | 230 | M10 | 4 |
| 0.45-60-3 | 0.45 | 60 | 943.6 | 77.5 | 230 | M10 | 4 |
| 0.525-5-3 | 0.525 | 5 | 57.7 | 5.5 | 125 | M6 | 2 |
| 0.525-10-3 | 0.525 | 10 | 115.5 | 11.0 | 180 | M6 | 2 |
| 0.525-15-3 | 0.525 | 15 | 173.2 | 16.5 | 210 | M6 | 2 |
| 0.525-16-3 | 0.525 | 16 | 184.8 | 17.6 | 210 | M6 | 2 |
| 0.525-18-3 | 0.525 | 18 | 207.9 | 19.8 | 210 | M6 | 2 |
| 0.525-20-3 | 0.525 | 20 | 231.0 | 22.0 | 210 | M6 | 2 |
| 0.525-25-3 | 0.525 | 25 | 288.9 | 27.5 | 210 | M8 | 3 |
| 0.525-30-3 | 0.525 | 30 | 346.6 | 33.0 | 250 | M8 | 3 |
| 0.525-40-3 | 0.525 | 40 | 462.2 | 44.0 | 300 | M8 | 3 |
| 0.525-50-3 | 0.525 | 50 | 577.7 | 55.0 | 230 | M10 | 4 |
| 0.525-60-3 | 0.525 | 60 | 693.3 | 66.0 | 270 | M10 | 4 |
| 0.69-5-3 | 0.69 | 5 | 33.4 | 4.2 | 125 | M6 | 2 |
| 0.69-10-3 | 0.69 | 10 | 66.9 | 8.4 | 180 | M6 | 2 |
| 0.69-15-3 | 0.69 | 15 | 100.3 | 12.6 | 210 | M6 | 2 |
| 0.69-16-3 | 0.69 | 16 | 107.0 | 13.4 | 210 | M6 | 2 |
| 0.69-20-3 | 0.69 | 20 | 133.8 | 16.7 | 210 | M8 | 3 |
| 0.69-25-3 | 0.69 | 25 | 167.2 | 20.9 | 210 | M8 | 3 |
| 0.69-30-3 | 0.69 | 30 | 200.7 | 25.1 | 250 | M8 | 3 |
| 0.69-40-3 | 0.69 | 40 | 267.4 | 33.5 | 300 | M8 | 3 |
| 0.69-50-3 | 0.69 | 50 | 334.3 | 41.9 | 230 | M10 | 4 |
| 0.69-60-3 | 0.69 | 60 | 401.4 | 50.2 | 230 | M10 | 4 |
| 1.2-5-3 | 1.2 | 5 | 11.0 | 2.4 | 180 | M6 | 2 |
| 1.2-10-3 | 1.2 | 10 | 22.0 | 4.8 | 210 | M6 | 2 |
| 1.2-15-3 | 1.2 | 15 | 33.2 | 7.2 | 210 | M8 | 3 |
| 1.2-20-3 | 1.2 | 20 | 44.2 | 9.6 | 210 | M8 | 3 |
| 1.2-25-3 | 1.2 | 25 | 55.3 | 12 | 210 | M8 | 3 |
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