1 3
Bently Nevada

Bently Nevada 3300/10 78422-01 Power Supply Module
SKU: 78422-01
In stock
Description

Bently Nevada 3300/10 78422-01 Power Supply Module

The Bently Nevada 3300/10 78422-01 serves as the primary 3300/10 Power Supply Module utilized to execute regulated rack power distribution and system status supervision across Bently Nevada 3300 machinery monitoring platforms. The module occupies the dedicated power supply position within the rack and provides operating power to monitor cards, transducer interfaces, and associated protection circuitry.

Hardware Specifications

Parameter Specification
Model 3300/10 78422-01
Brand Bently Nevada
Origin United States
Product Type Power Supply Module
Input Voltage Option 1 95 VAC to 125 VAC RMS
Input Voltage Option 2 190 VAC to 250 VAC RMS
Input Frequency 47 Hz to 63 Hz
Rack Capacity Supports up to 12 monitor cards with associated transducers
System Status Function Integrated System OK relay interface
Installation Position Rack Position 1 (far-left slot)
Dimensions 5.1 cm x 20.3 cm x 33.0 cm
Connector Type Keyed positive-retention connectors
Operating Temp 0 deg C to 65 deg C
Storage Temp -40 deg C to 85 deg C
Relative Humidity Up to 95%, non-condensing
Weight 1.2 kg
Power Consumption Not specified in available data

Gap Reference Integrity and System OK Monitoring

Within a Bently Nevada 3300 machinery protection rack, power supply stability directly affects probe bias voltages, transducer signal conditioning circuits, and monitor operation. The 3300/10 module incorporates circuitry associated with the rack System OK relay so that power degradation conditions can be identified before monitor functionality is compromised.

For eddy-current transducer systems, maintaining stable power distribution supports proper gap voltage verification procedures. Gap validation is commonly performed against expected negative bias voltage targets during commissioning and troubleshooting to confirm transducer operating range and measurement integrity.

Frequently Asked Questions

Q: Can the 3300/10 78422-01 support multiple monitor channels within the same rack?
A: Yes. The module is designed to provide operating power for a 3300 rack populated with up to 12 monitoring cards and their associated transducer systems.

Q: Does the module include monitoring of rack power health?
A: Yes. The design incorporates interaction with the System OK relay, allowing abnormal power conditions to be reflected at the system status level.

Q: Is input voltage field selectable?
A: Yes. The module supports alternative AC input ranges that are selectable through physical configuration provisions provided on the unit.

Field Installation Guidelines

  • Install the module only in the dedicated Position 1 slot of a compatible 3300 rack.

  • Verify configured input voltage range before applying AC power.

  • De-energize the rack before inserting or removing the module.

  • Inspect connector keying and retention features prior to final engagement.

  • Maintain separation between AC power wiring and sensitive transducer signal wiring.

  • Confirm protective earth connections comply with plant grounding practices.

  • After energization, verify System OK indication and monitor startup status before returning machinery to service.

  • During maintenance activities, inspect power terminals and connector contacts for signs of corrosion, looseness, or overheating.