schneider-electric
Schneider ViP300 Numerical Protection Relay
Model: 59649
4-hour response · Pricing in SAR · Delivery across all KSA regions
59649 — Schneider ViP300 Numerical Protection Relay
The Schneider Electric ViP300 is a numerical protection relay designed for feeder and transformer protection in secondary distribution substations and industrial power systems, providing overcurrent (50/51), earth fault (50N/51N), and negative phase sequence (46) protection functions with IEC 60255 compliance in a compact, panel-mount format that replaces aging electromechanical relay sets in switchgear upgrade projects. The ViP300's self-powered design — drawing operating power from the secondary current inputs without a separate auxiliary supply — eliminates the auxiliary voltage wiring requirement that complicates relay retrofits in older switchgear where auxiliary supply is limited. This self-powered feature is particularly valuable in Saudi Arabia's existing LV and MV switchgear retrofit market, where legacy secondary distribution panels often lack a reliable 24 V or 48 V DC auxiliary rail for relay power.
The ViP300 provides adjustment-free IEC standard inverse time overcurrent characteristics (extremely inverse, very inverse, standard inverse, long-time inverse) selectable by front-panel switch without software tools, and an instantaneous element with adjustable set point from 1 to 30 times rated current. The relay's mechanical target indicators show which protection element operated after a trip, enabling site technicians to identify fault type (overcurrent, earth fault, negative sequence) without a laptop or communications interface — a practical advantage at remote Saudi secondary substations with minimal maintenance infrastructure. A test facility built into the relay allows protection function verification using secondary injection from the relay's test sockets without disconnecting CT wiring.
In Saudi Arabia, the ViP300 is a preferred relay for upgrading aging electromechanical relays in secondary distribution substations serving residential areas, commercial districts, and small industrial customers. SEC's secondary substation maintenance programme includes ViP300 as a replacement option for IDT and CDT type electromechanical relays in the Kingdom's large installed base of legacy RMU and compact secondary substations. ARAMCO's Dhahran facility maintenance team uses ViP300 for secondary distribution upgrade projects where the self-powered feature eliminates auxiliary wiring work in crowded legacy panel cubicles.
Razz Middle East stocks ViP300 relays for immediate delivery across Saudi Arabia, providing relay application engineering, secondary injection testing, and field commissioning support for secondary substation protection upgrade projects throughout the Kingdom.
Technical Specifications
Full specifications for the 59649
- Protection Functions
- ANSI 50/51, 50N/51N, 46
- Time Characteristics
- IDMT IEC (EI, VI, SI, LTI) and definite time
- Instantaneous
- 1–30 × In (adjustable)
- Auxiliary Supply
- Self-powered from CT secondaries
- Target Indicators
- Mechanical, per function
- Test Facility
- Built-in secondary injection sockets
- Communication
- Optional RS-232 port
- Standard
- IEC 60255
Key Features & Benefits
- Self-powered operation from CT secondary current eliminates separate auxiliary supply wiring, enabling cost-effective relay retrofit in legacy secondary substations with limited auxiliary voltage infrastructure.
- Mechanical target indicators identify which protection function operated after a trip without laptop or communications access, enabling rapid fault type diagnosis at remote Saudi secondary substations.
- Built-in secondary injection test sockets allow protection function verification without disconnecting CT wiring, reducing test time and eliminating the risk of open-circuiting CT secondaries during field testing.
- IEC standard inverse time curves (EI, VI, SI, LTI) selectable by front-panel switch satisfy all common overcurrent coordination requirements in Saudi Arabia's secondary distribution network without software parameterisation.
- Compact panel-mount format with standard 4U relay case fits existing relay panel cut-outs in IDT/CDT relay replacement projects without mechanical modification to the relay panel.
- Negative phase sequence (NPS) protection detects unbalanced loading and phase reversal conditions, protecting distribution transformers and induction motors from overheating caused by supply unbalance.
- Earth fault high-set (50N) instantaneous element provides fast clearance of ground faults on secondary distribution feeders, minimising fault damage at SEC secondary substations serving residential customers.
Industrial Applications in Saudi Arabia
- SEC secondary substation electromechanical relay replacement programme, where ViP300 replaces aging CDT and IDT relays with self-powered digital protection without auxiliary supply infrastructure investment.
- ARAMCO Dhahran facility secondary distribution protection upgrade, where ViP300 self-powered feature eliminates auxiliary wiring work in crowded legacy switchgear cubicles during live substation upgrade campaigns.
- NWC water distribution pump station switchgear protection upgrade, where ViP300 provides motor and feeder overcurrent protection with built-in NPS for unbalanced 3-phase supply detection.
- MODON industrial estate tenant feeder protection at secondary distribution boards, where ViP300 provides cost-effective overcurrent and earth fault protection with minimal commissioning complexity.
- Saudi hospital and healthcare facility secondary distribution protection at site distribution substations, where ViP300 NPS detection protects sensitive medical equipment from supply phase imbalance.
- Commercial building basement substation feeder protection upgrade at Riyadh and Jeddah towers, where ViP300 replaces obsolete electromechanical relays with digital protection and mechanical fault indication.
- Telecom infrastructure site secondary distribution protection at STC and Zain base station substations, where self-powered ViP300 protects critical telecom supply without separate battery-backed auxiliary supply.
Industrial Supplier in Saudi Arabia
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Frequently Asked Questions — 59649
Common questions from buyers in Saudi Arabia and the GCC