Introduction
The component with part number 84661-17 is a Power Supply Module for the Bently Nevada* 3300 XL proximitor transducer system. This module is a critical component of the 3300 XL rack-based monitoring architecture.
Its primary function is to convert standard plant power (AC or DC) into the clean, regulated, and isolated DC voltage required to operate multiple 3300 XL proximitor modules (e.g., the 330180 for vibration). Each power supply can typically support several proximitor modules, providing a centralized power source for a rack of monitoring channels in a cost-effective and organized manner.
*Bently Nevada is a part of Baker Hughes.
Parameters
The following table outlines the key technical parameters for the 84661-17 Power Supply.
| Parameter | Specification |
|---|---|
| Part Number | 84661-17 |
| Module Type | Power Supply for 3300 XL System |
| Compatibility | Bently Nevada 3300 XL Racks and Frames |
| Input Voltage | Typically 85-264 VAC, 47-63 Hz, or 110-150 VDC (model specific). |
| Output Voltage | -24 VDC (or -18 to -26 VDC), regulated. |
| Output Power / Capacity | Designed to power multiple proximitor modules (e.g., 4, 8, or 16 channels depending on the rack configuration). |
| Primary Function | Provides regulated and isolated power to 3300 XL proximitor modules in a multi-channel rack. |
| Mounting | Designed for installation in a dedicated slot within a 3300 XL rack or frame. |
| Status Indicators | LED indicators for power status. |
| Dimensions (H x W x D) | Varies by rack type, but typically a modular card. Approx. 130 mm x 40 mm x 150 mm (5.1 in x 1.6 in x 5.9 in). |
| Weight (Approx.) | 0.3 kg (0.66 lb) |
Application Scenarios
The 84661-17 Power Supply is a foundational component in centralized machinery monitoring systems based on the 3300 XL platform. Its application scenarios are focused on providing reliable power to the monitoring electronics.
Centralized Power for 3300 XL Racks:
Installed in a 3300 XL rack to provide operational power to all connected proximitor modules (vibration, position, etc.), enabling a multi-channel monitoring system from a single power source.
Machinery Protection Systems:
Used as the power backbone for protection systems on critical equipment like turbines, compressors, and large pumps, where multiple points on the machine are monitored for vibration and position.
Ensuring Signal Integrity:
Provides a clean, stable, and isolated DC supply to the sensitive proximitor electronics. This is crucial for maintaining the accuracy and reliability of the vibration and position measurements, protecting them from electrical noise on the plant power lines.
Simplified System Wiring and Maintenance:
By centralizing the power distribution for multiple channels, it significantly reduces the complexity of field wiring compared to using individual power supplies for each transducer. It also simplifies maintenance and troubleshooting.
Integration into Monitoring Panels:
Commonly found in purpose-built machinery protection panels in power generation, oil & gas, and petrochemical plants, where 3300 XL systems are deployed for continuous, reliable monitoring.
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