Introduction
The component with part number 3500/15-02-02 is a Power Supply Module for the Bently Nevada* 3500 Machinery Monitoring System. This module is the primary source of power for all other modules installed in the 3500 rack.
It converts the incoming AC or DC facility power to the precise DC voltages required by the monitoring, relay, and interface modules. The 3500/15 power supply is a hot-swappable, redundant component, meaning a system can be equipped with two power supplies. If the primary unit fails, the system automatically and seamlessly switches to the secondary unit without interruption, ensuring continuous machinery protection. The suffix "-02-02" typically specifies details like input voltage range and specific hardware revisions.
*Bently Nevada is a part of Baker Hughes.
Parameters
The following table outlines the key technical parameters for the 3500/15-02-02 Power Supply.
| Parameter | Specification |
|---|---|
| Part Number | 3500/15-02-02 |
| Module Type | Power Supply |
| Compatibility | Bently Nevada 3500 Series Racks |
| Input Voltage | The "-02" suffix often indicates a specific input voltage range, such as 85-264 VAC, 47-63 Hz. (Note: It is critical to verify the exact input specification for this suffix before application). |
| Output Voltage | +5 VDC, ±15 VDC for the rack backplane. |
| Output Power | 37 Watts (typical). |
| Redundancy | Supports N+1 redundant configuration when two power supplies are installed. |
| Hot-Swappable | Yes, can be removed and replaced without shutting down the entire rack. |
| Status Indicators | LED indicators for Power OK and Failure. |
| Primary Function | Provides regulated, isolated power to all modules in the 3500 chassis. |
| Dimensions (H x W x D) | Approx. 190 mm x 40 mm x 200 mm (7.5 in x 1.6 in x 7.9 in) *Standard 3500 Series full-size module slot.* |
| Weight | Approx. 0.9 kg (2.0 lb) |
Application Scenarios
The 3500/15 Power Supply is a foundational component in every 3500 system. Its application is universal, but its role is most critical in the following scenarios:
System-Wide Power Distribution:
Installed in one or both power supply slots of a 3500 rack to provide operational power to every monitoring, relay, and communication module, enabling the entire system to function.
High-Availability and Critical Protection Systems:
Used in a redundant (dual) configuration for applications where uninterrupted monitoring is non-negotiable, such as on gas turbines, steam turbines, and critical compressors. This ensures a single power supply failure does not lead to a loss of machinery protection.
Hot-Swap Maintenance:
Allows for proactive or corrective maintenance without requiring a system shutdown. A faulty power supply can be safely removed and replaced while the redundant unit continues to power the rack, maintaining continuous asset protection.
Electrical Noise Isolation:
Provides isolated and filtered DC power to the sensitive monitoring electronics, protecting them from electrical noise and transients present in the plant's main power supply, which ensures measurement accuracy and system stability.
Compliance with Safety Standards:
Its robust design and redundancy features are often a key part of meeting safety and reliability standards for machinery protection in industries like oil & gas, power generation, and petrochemicals.
System Context:
The 3500/15 is an indispensable component in any rack protecting critical assets. Without it, or in the event of a complete power supply failure in a non-redundant configuration, the entire 3500 system for that rack will become inoperative.
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