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| JB-300 Series |
Description:
The JB300 is a unique three-phase inverter, that can be supplied with a DC bus, a single phase or three phase line. The inverter provides a variable pulse width, modified six step output. This control scheme allows the inverter to use the full potential of the IGBT's, by reducing the usually high switching losses. The JB300 can be setup for single or three-phase output, with frequencies up to 10,000 cycles per second.
Applications:
High Frequency supplies for Ozone system;
- DC to AC conversion;
- Three phase variable frequency AC motor supplies;
- Single phase AC motor supplies;
- Military applications requiring 400 cycles per second;
Control:
The control scheme used in the JB-300 was designed with simplicity in mind. The controls are simple to manufacture, service, repair and install.
Features:
- Adjustable ramp control;
- Selectable maximum frequency;
- Selectable maximum voltage at desired frequency;
- Built in IGBT protection circuits;
- Power loss ride through.
Components:
The IGBT is the main component in the system. The newly developed IPM (Intelligent Power Module) was chosen for the JB-300. The IPM requires less circuitry to control thus reducing manufacturing costs and test time. The IPM’s provide short circuit protection, over temperature detection, over current detection and control supply under-voltage lockout.
Sizing:
| Number | Part Device Rating/Phase (Amps) |
Inverter Rating/Phase (ARMS) |
Output/Phase (VRMS) |
Power (KVA) |
| JB-300/10 | 10.0 | 7.07 | 240 / 120 | 2.94 / 1.47 |
| JB-300/20 | 20.0 | 14.14 | 240 / 120 | 5.88 / 2.94 |
| JB-300/30 | 30.0 | 21.21 | 240 / 120 | 8.82 / 4.41 |
| JB-300/100 | 100.0 | 70.70 | 240 / 120 | 24.0 / 12.0 |
Input specifications:
AC input voltage 90 to 264 (VRMS) single or three phase;
DC input voltage 120 to 373 (VDC).
JB-300 Dimensions:
Contact: J. A. Beck, Inc.
29619
60 Th. Street
Salem, WI. 53126
Voice: 262-537-2030
Fax: 262-532-2819
