Typical Barrier Equipment Installation

The illustration above shows a typical large stream electric fish barrier system installation. The system includes six Programmable Output Waveform (POW) pulsators. The pulsators are serially connected to a group of submerged electrodes. The system uses standard pulsator design, the BP-1.5-POW, with an input power of 1.5 kilowatts. Energy is stored in a large capacitor bank and is quickly discharged through water, much like a camera flash. Pulse width is adjustable between 0.15 and 10.0 milliseconds. The repetition rate is adjustable from 0.1 to 10 pulses per second. Culvert barriers typically only require one or two pulsators. In the case of only one pulsator, the output can be split to energize up to three electrodes. All barrier systems include an FBTCS monitoring system.

Standard Pulses

A regular pattern of on/off times. The width and period of the pulses are selected to produce the most effective pattern.

Gated Bursts

A group of pulses followed by a longer off-time. This is often just as effective as standard pulses, but less stressful to the fish.

Other Waveforms

Sequences of pulses sweeping from wide-to-narrow width, or sequences sweeping from high-to-low frequency, can be implemented on special order.

BP-1.5-POW Pulsator

The BP-1.5 Programmable Output Waveform (POW) pulsator outputs up to 1.5 kilowatts. Pulsed waveforms and frequencies can be programmed for optimum fish blocking or repelling. They can produce a wide range of DC pulse outputs to give more stopping power with less stress to fish.

Each BP-1.5 pulsator includes a microprocessor to control width, frequency, and period of the output. A variety of waveforms can be generated: standard pulses, sweeping pulse widths, sweeping frequencies, and gated bursts. This allows generation of optimum waveforms that are effective with a wide range of species. The FBTCS telemetry and control system is required to setup, monitor, and control the pulsators.

Insulated Equipment Building

The Insulated Equipment Building is designed to house a complete barrier system and assure efficient barrier control and monitoring. It will house up to ten standard pulsators, the transformer cooling system, and the FBTCS monitoring system.

Buildings are typically 8' wide. The length is 8' minimum, up to 24' maximum. Removable sections facilitate installation servicing and venting of a backup generator as large as 100 kVA.

Installation requires a concrete pad prepared with anchors and stub-ups. Ideal for both temporary and permanent installations, the buildings are portable and are supplied with lifting brackets.

The buildings come pre-wired with all required connections. All interior electrical is surface-mounted to facilitate upgrades, with separate conduits for power and low voltage. Interior lighting is fluorescent.

To withstand very severe environmental conditions, buildings are well insulated. The built-in heater and air conditioner regulate temperature and optimize equipment operation.