ABB 290B225A10 | 290B225A10D SA-1 High Speed Differential Relay

Product code: N/A

ABB 290B225A10 | 290B225A10D SA-1 High Speed Differential Relay

Original price was: ¥99,999.00.Current price is: ¥5,652.00.

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Detailed content

The ABB 290B225A10 / 290B225A10D is an SA-1 Type High Speed Differential Relay for generator protection applications. Technical references identify the 290B225A10 as a solid-state, three-phase, single-output relay with a minimum trip sensitivity of 0.14 A and 48/125 VDC operating supply options. The 290B225A10D variant is identified as the same SA-1 high-speed differential relay configuration with reactors.

Product Datasheet

Specification	Details
Brand	ABB / Westinghouse
Model	290B225A10
Variant	290B225A10D
Product Name	SA-1 High Speed Differential Relay
Relay Type	High Speed Differential
Series / Type	SA-1
Application	Generator Protection
Technology	Solid State
Phase Configuration	Three Phase
Output	Single Output
Minimum Trip Sensitivity	0.14 A
Control Power	48 / 125 VDC
Indicator	Lamp Indicator
290B225A10D Configuration	Complete with Reactors
Reference Number	629A406
Product Status	Legacy / Replacement Spare
Dimensions	Verify from actual unit
Weight	Verify from actual unit
Country of Origin	Verify product nameplate
Discontinued	Verify current OEM availability

Main Functions

Provides high-speed differential protection for generator applications.
Uses solid-state three-phase differential protection circuitry.
Designed for rapid detection of differential current conditions within the protected generator circuit.
Provides a single protection output and lamp indication for relay status.
The 290B225A10D version includes reactors as part of its configuration.
Suitable for maintenance, replacement, and spare inventory where the complete relay part number and protection configuration match.

Q&A

Q: What is the exact part number?
A: The primary part number is 290B225A10, with 290B225A10D identifying a related configuration that includes reactors.

Q: What type of relay is this?
A: It is an SA-1 Type High Speed Differential Relay.

Q: What is the application?
A: The relay is specified for generator protection and uses three-phase differential protection.

Q: What is the minimum trip sensitivity?
A: Available technical references specify a minimum trip sensitivity of 0.14 A.

Q: What control voltage is supported?
A: The listed SA-1 configuration is specified for 48/125 VDC control power.

Q: What is the difference between 290B225A10 and 290B225A10D?
A: The 290B225A10D version is identified as the SA-1 high-speed differential relay complete with reactors.