· Relay Test Sets
Three-Phase Relay Test Set
Model RTS-33
Three-phase, two-unit relay test set - 0–360° phase angle, 0–50 A current, 415 V 3-phase input. For distance, directional, and differential relay testing.
₹2,69,040₹4,03,56033% off
Inclusive of 18% GST
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- GST tax invoice with every order
- Secure payment by UPI, card or netbanking
- 12-month warranty against manufacturing defects
- Packing & forwarding charged extra at checkout
About.
The CIE/RTS-33 is a three-phase relay test set for testing distance relays, over-current relays, over/under-voltage relays, earth fault relays, and directional-element relays. It is a two-unit system: Unit 1 houses the current/voltage source and measuring facilities; Unit 2 is the dedicated phase-shifter unit. Together they allow full 0–360° phase angle control between voltage and current (coarse 60° steps + fine ±30°), enabling genuine directional and distance relay testing not possible with single-phase sets. Three-phase input: 415 V ±10%, 4-wire, 50 Hz. Test current: 0–1/5/10/25/50 A (five taps, 0–100% regulation each). Continuous duty up to 10 A; 25 A and 50 A intermittent. Test voltage: 0–110% of 110 V phase-to-phase, three-phase, 50 Hz. Fixed DC voltage: isolated 30/110/220 V at 100 VA for 30 minutes. Phase-to-phase fault mode: selected phase currents automatically placed in opposition. Facility to check phase sequence before testing. Built-in digital timer (0–9.999 sec and 0–99.99 sec). Rated burden: 250 VA (current and voltage circuits). Units connected by 1-metre interconnection cable.
- Distance relay commissioning
- Directional and differential protection relay testing
- Over-current, earth fault, over/under-voltage relay testing
- Phase-to-phase fault simulation
- Indian Railways traction protection relay testing
In the box
- Operation Manual
- Schematic Circuit Diagram
- Works Test Report
- 1-metre interconnection cable (between Unit 1 and Unit 2)
- 4-core, 5-metre mains input cable
Specifications.
- Input
- 415 V ±10%, 3 phase, 4 wire, 50 Hz A.C.
- Burden
- 250 VA (current and voltage circuits)
- Test Current Taps
- 0–1 A / 0–5 A / 0–10 A / 0–25 A / 0–50 A (0–100% regulation per tap)
- Duty
- Continuous up to 10 A; 25 A & 50 A: intermittent (5 min ON, 10 min OFF)
- Test Voltage
- 0–110% of 110 V ph-ph (63.5 V ph-N), 3-phase, 50 Hz, continuously variable
- Fixed DC Voltage
- Isolated 30 V / 110 V / 220 V at 100 VA, available for 30 min
- Phase Angle
- 0–360° - coarse 60° steps + fine ±30° (Unit 2, static phase-shifter)
- Phase Angle Meter
- 360° range, 1° resolution
- Time Measurement
- 0–9.999 sec (0.001 sec resolution) and 0–99.99 sec (0.01 sec resolution)
- Current Metering
- CT-operated ammeter per phase, 0–1 A, 0–100% scaled, ±1% accuracy
- Voltage Metering
- 0–200 V, ±1% accuracy, 0.1 V resolution, phase selector switch
- Construction
- Two-unit system; 1-metre interconnection cable; 4-core, 5-metre mains input cable
- Warranty
- 12 months against manufacturing defects only
