ABB SPAU 110 C Residual Overvoltage Relay

ABB SPAU 110 C Residual Overvoltage Relay Supplier and Exporter in India

ARP IMPEX handles enquiries for ABB SPAU 110 C residual overvoltage relays for existing switchgear, substations, industrial plants and replacement requirements.

ABB SPAU 110 C is an older SPACOM voltage protection relay used mainly for earth-fault protection and residual voltage supervision. It is found in isolated-neutral, resistance-earthed and reactance-earthed electrical networks. The relay has also been used for generator and motor earth-fault protection and for capacitor bank unbalance protection.

SPAU 110 C provides two residual overvoltage stages. Depending on the protection scheme, one stage can be used for alarm or supervision and the second for tripping.

ABB has listed SPAU 110 C as a non-active product since 2009, so most requirements today are for a matching spare, replacement of an installed relay or modernisation of an existing protection panel.

If you are looking for an ABB SPAU 110 C supplier in India, SPAU 110 C price, discontinued ABB SPAU relay, SPAU 110 C replacement or REX615 retrofit, send us the existing relay nameplate and required quantity for checking.

Request a Quote for ABB SPAU 110 C

For pricing and availability, please send:

• Complete ABB SPAU 110 C order code
• Clear photograph of the existing relay nameplate
• Required quantity
• Destination country
• Required delivery schedule

If the complete order code is unavailable, please mention:

• Rated residual voltage – 100 V or 110 V
• Auxiliary supply voltage
• Existing SPAU 110 C or REX615 retrofit requirement

For an old relay replacement, the nameplate is normally the best starting point.

Why Buy ABB SPAU 110 C from ARP IMPEX?

• Support for legacy ABB SPACOM relay enquiries
• Part-code and nameplate checking before quotation
• Matching spare and replacement requirements
• Quotations for single units and multiple quantities
• Support for discontinued ABB relay requirements
• Assistance with SPAU 110 C to REX615 retrofit enquiries
• Technical datasheets with quotation
• Export packing and international shipping assistance
• Supply support for utilities, EPC contractors and industrial maintenance buyers

ABB SPAU 110 C Model and Product Status

SPAU 110 C is a specific ABB relay model, not a family containing several individual relay models.

It belongs to ABB’s older SPACOM / SPAU voltage relay range and uses the SPCU 1C6 residual voltage relay module.

ABB currently classifies SPAU 110 C as a legacy product and states that it has not been active since 2009.

Because of this, buyers normally search for SPAU 110 C for:

• Existing relay replacement
• Maintenance spare
• Plant shutdown requirement
• Matching relay for old switchgear
• Legacy ABB SPACOM stock
• Upgrade to a current ABB relay

Technical Specifications

• Brand: ABB
• Series: SPACOM / SPAU
• Model: SPAU 110 C
• Product type: Residual overvoltage relay
• Product status: Legacy / not active since 2009
• Main protection: Residual overvoltage / earth-fault supervision
• Protection function: ANSI 59N
• Protection stages: 2 independent residual overvoltage stages
• Low-set stage: U0>
• High-set stage: U0>>
• Low-set setting range: Approximately 2–20% × Un
• High-set setting range: Approximately 10–80% × Un
• Operating characteristic: Definite time
• Rated residual voltage: 100 V or 110 V
• External blocking input: Available
• Trip outputs: Available
• Alarm/signalling outputs: Available
• Serial communication: SPA serial interface
• Fibre-optic communication: Available through applicable SPA-ZC bus module
• Wide auxiliary supply: 80–265 V AC/DC
• Low-voltage DC supply: 18–80 V DC
• Digital indication: Setting values, measured residual voltage and recorded fault values
• Self-supervision: Built-in continuous relay supervision
• Mounting: Panel-mounted SPACOM construction

The rated voltage and auxiliary supply should always be confirmed from the complete SPAU 110 C order code or existing nameplate.

Features

• Residual overvoltage protection
• Earth-fault supervision
• Two independent protection stages
• Low-set residual overvoltage stage
• High-set residual overvoltage stage
• Separate alarm and trip use
• Definite-time operation
• External blocking input
• Flexible trip and signalling outputs
• Residual voltage measurement
• Fault-value recording
• Digital display
• SPA serial communication
• Fibre-optic substation bus connection through applicable module
• Built-in relay self-supervision
• 100 V and 110 V residual-voltage inputs
• Different auxiliary supply versions

ABB specifically lists residual overvoltage protection, two independent operation stages, selectable output functions, serial communication and continuous self-supervision among the SPAU 110 C features.

Applications

ABB SPAU 110 C is commonly found in:

• Earth-fault protection systems
• Residual voltage supervision
• Isolated-neutral networks
• Resistance-earthed networks
• Reactance-earthed networks
• Resonant-earthed networks
• Distribution substations
• Generator earth-fault protection
• Motor earth-fault protection
• Capacitor bank unbalance protection
• Busbar residual voltage supervision
• Existing medium-voltage switchgear
• Utility substations
• Industrial electrical distribution systems
• Legacy ABB SPACOM protection panels
• Existing SPAU 110 C replacement requirements

ABB also documents SPAU 110 C for generator and motor earth-fault protection and capacitor-bank unbalance applications.

ABB SPAU 110 C for Capacitor Bank Protection

SPAU 110 C can be used for unbalance protection of star-connected capacitor banks.

A change in capacitor bank balance produces residual voltage. SPAU 110 C can monitor this voltage, with one stage used for alarm and another for trip according to the protection requirement.

This makes old SPAU 110 C units relevant for buyers maintaining:

• Capacitor bank panels
• Reactive power compensation systems
• Utility capacitor banks
• Industrial MV capacitor banks

ABB SPAU 110 C Replacement

Replacement is one of the main reasons buyers now search for SPAU 110 C.

Since ABB stopped active supply of the product in 2009, an existing installation may require:

• Original SPAU 110 C spare
• Matching legacy relay
• Replacement after relay failure
• Shutdown spare
• Modernisation of the complete protection panel

For an ABB SPAU 110 C replacement relay, please send:

• Complete order code
• Relay nameplate photograph
• Rated residual voltage
• Auxiliary supply
• Required quantity
• Destination country

Do not select an old SPAU relay only from the model number when an exact replacement is required.

ABB SPAU 110 C to REX615 Retrofit

ABB officially includes SPAU 110 C in its Relay Retrofit Program for SPACOM to REX615.

ABB’s retrofit program uses a REX615 protection and control relay together with a retrofit connector kit to help replace the old SPACOM relay while reducing rewiring work. The replacement still requires application-specific configuration and settings.

ABB lists the following retrofit order-code structures specifically for SPAU 110 C:

• RRPSPAU110CREX615C – REX615 supplied with pre-configuration
• RRPSPAU110CREX615N – REX615 supplied without pre-configuration

A SPAU 110 C to REX615 retrofit should be checked against the existing:

• Residual voltage input
• Auxiliary supply
• Trip outputs
• Alarm contacts
• Blocking signal
• Existing protection settings
• Panel cut-out and wiring

For an ABB SPAU 110 C to REX615 retrofit enquiry, send the existing relay nameplate and available settings.

Contact us for ABB SPAU 110 C price, SPAU 110 C replacement relay, discontinued ABB SPAU 110 C availability, ABB residual overvoltage relay supplier in India, legacy SPACOM spare or SPAU 110 C to REX615 retrofit quotation from India.