REF615 Feeder Protection Relay, China REF615 Feeder Protection Relay Manufacturers, Suppliers, Factory

Overview

Place of Origin:	Sweden
Brand Name:	ABB
Model Number:	REF615
Packaging Details:	Original new Factory Sealed
Delivery Time:	5-7 days
Payment Terms:	T/T
Supply Ability:	In stock

Specifications

Parameter	Value
Model	REF615
Product Type	Feeder Protection Relay
Dimensions (Overall)	17.8 x 20 x 17.8 cm
Weight (Total)	4.04 kg
Front Panel Protection	IP54
Rear Terminal Protection	IP20
Frame Width	177 mm
Housing Width	164 mm
Frame Height	177 mm (4U)
Housing Height	160 mm
Depth	201 mm (153 + 48 mm)
Relay Weight	4.1 kg
Plug-in Unit Weight	2.1 kg
Rated Auxiliary Voltage	100/110/120/220/240 VAC; 24/30/48/60 V DC; 48/60/110/125/220/250 V DC
Aux Power Interruption Time	50 ms (at rated voltage)
Aux Voltage Variation Range	38–110% Un (AC), 50–120% Un (DC low), 80–120% Un (DC high)
Startup Threshold	19.2 V DC (80% of 24 V DC)
Aux Power Consumption (DC)	<13 W nominal / <18 W max
Aux Power Consumption (AC)	<16 W nominal / <21 W max
Aux DC Ripple Limit	≤15% (100 Hz)
Fuse Type	T4A / 250 V
Rated Frequency	50 / 60 Hz
Rated Current Inputs	In = 0.2 A / 1 A / 5 A
Thermal Stability (continuous)	4 A / 20 A
Thermal Stability (1 s)	100 A / 500 A
Dynamic Stability (half-wave)	250 A / 1250 A
Input Impedance	<100 mΩ / <20 mΩ
Voltage Input Range	60–210 V AC
Voltage Thermal Stability (continuous)	240 V AC
Voltage Thermal Stability (10 s)	360 V AC
Voltage Load Capacity	<0.05 VA
Sensor Input (Current)	75 mV–9000 mV
Sensor Input (Voltage)	6 kV–30 kV
Operating Temperature (continuous)	-25 °C to +55 °C
Short-term Operating Temperature	-40 °C to +85 °C (<16 h)
Storage & Transport Temperature	-40 °C to +85 °C
Relative Humidity	<93% non-condensing
Air Pressure	86–106 kPa
Altitude Limit	≤2000 m

Description

The REF615 IEC feeder protection and control unit is a dedicated feeder protection and control device specifically designed for the protection, control, measurement, and monitoring of public and industrial power distribution systems. The REF615 is adaptable to both ungrounded and resistively grounded grids. Furthermore, utilizing its advanced inter-station communication capabilities, the REF615 can also be used for ring or radial network protection. The protected grid includes multiple feeders and distributed generation.

Applications

New energy plants (photovoltaic/wind power): Used for feeder protection and anti-islanding detection in substations.

Semiconductor wafer fabs: Ensure extremely high power supply reliability and achieve millisecond-level fault isolation.

Oil and gasification plants: Enable directional fault detection in complex ring network power supply systems.

Automobile manufacturing plants: Intelligent transformation and centralized monitoring of the final assembly line power distribution room.

Key Features

Integrated protection, control, monitoring, and management in a single relay protection device provides a compact and versatile solution for public and industrial power distribution systems.

Offers extensive protection and control functions, compatible with sensors or traditional CTs and PTs.

Features pre-configured standard configurations for faster and easier integration to meet diverse application needs.

Plug-and-play design for quick installation and testing.

Large LCD screen with single-line diagram display, accessible locally or via an easily connected and browsed HMI.

Key Advantages

Directional overcurrent, non-directional overcurrent, and ground fault protection; voltage, frequency, and power quality protection and measurement functions.

Highly sensitive and selective multi-frequency admittance ground fault protection combination.

Optional advanced and fast short-circuit and ground fault location functions.

Supports IEC 61850 Edition 1 and 2, including redundant HSRs and PRPs, GOOSE, and IEC 61850-9-2.

Supports IEEE 1588 v2 high-precision time protocol.

Supports Modbus, DNP3, and IEC 60870-5-103 communication protocols.

FAQ

Q: What is the REF615?
A: It is a Feeder Protection Relay.

Q1: Does the REF615 support directional protection?
A: Yes. This is one of the main differences between it and the REF610. It can determine the direction of current flow, making it ideal for ring network power supplies or systems with distributed power supply access.

Q2: What is the "removable" design of the REF615?
A: The core circuit board of the relay is mounted on a movable bracket. If the hardware fails, simply remove the old relay and insert the new one; the external secondary wiring does not need to be changed, greatly shortening repair time.

Q4: Can the REF615 monitor current and voltage simultaneously?
A: Yes. Depending on the specific configuration, it can be connected to three-phase current and three-phase voltage transformers to achieve power, frequency, and voltage protection.

Q5: Can the REF615 prevent arcing explosions inside the switchgear?
A: Yes. If the Arc Option is selected and a fiber optic sensor is connected, it can detect arcing within 4ms and trigger a trip.