7548RLY
7548RLY
AE Techron
For Protection Relay Production Testing and Commissioning
Up to 100 Ap Current Source
- High compliance voltage allows the 7548RLY to drive electromechanical relays directly
- Maintains phase accuracy for any load from a dead short to 0.25 ohms
- Front panel indicators for rapid assessment of amplifier status
- Protection circuitry protects from input overloads, improper output connection (including shorted and improper loads), over-temperature, over-current, and supply voltages that are too high or low
The 7548RLYwas created to meet the demanding requirements of the power utility industry. Capable of outputting up to 100 amperes peak current, the 7548RLY is powerful enough to put protection relays, fuses and other critical components through a full range of tests.
It is capable of a controlled-voltage bandwidth of DC – 100 kHz and a controlled-current bandwidth of DC – 10 kHz. The low noise floor, low distortion and minimal phase error of the 75486RLY make it the ideal amplifier for power grid modeling.
Key Performance Capabilities:
- Up to 100 Ap (70A RMS) output power at 0.5 ohms
- Up to 195 Vp output voltage
- Standard transconductance of 20 ±0.2% from short to 1-ohm load
- Residual noise of less than 2.5 mA peak, from 40 Hz to 600 Hz
Click below to request a quote for this item. Or for product advice, stock and lead time enquiries call our team on 0330 313 3220.
| Attribute | Value |
|---|---|
| Protection |
Over/Under Voltage: ± 10% from specified supply voltage amplifier is forced to Standby Over Current: Breaker protection on both main power and low voltage supplies Over Temperature: Separate output transistor, heat sink, and transformer temperature monitoring and protection |
| Physical Characteristics |
Chassis: Black powder-coat chassis with all aluminum construction; designed for stand-alone or rack-mounted operation. The amplifier occupies five EIA 19-inch-wide rack units Weight: 160 lbs (72.5 kg) AC Power: Three-phase, 208 VAC ±10%, 47-60 Hz, 30A AC service (400 VAC ±10%, 15A version available). A toggle switch circuit breaker opens all legs of the AC mains on excess current demand. Operating Temperature: 10°C to 50°C (50°F to 122°F), maximum output power de-rated above 30°C (86°F). Humidity: 70% or less, non-condensing Cooling: Forced air-cooling from front to back through removable filters via four 100 ft3/min. fans. No space is required between rackmounted amplifiers. Air filters are removable from the rear via one fastener per side and may be eliminated if cabinet filtration is provided. Dimensions (HxWxD): 12.25” x 19” x 22.8” (31.1 cm x 48.3 cm x 57.8 cm) |
| Bandwidth | DC to 10 kHz |
| Status Display, Control, I/O |
Front Panel LED Displays indicate: Ready, Standby, Stop, and Fault conditions in the output stage LCD Display: User-configurable for up to four simultaneous displays reporting one, two, or all four of the following: Voltage Peak, Voltage RMS, Current Peak, and Current RMS. If an amplifier fault condition occurs, the front panel display lists the type of fault condition and gives suggested corrective action. Soft Touch Switches for: Run, Stop, Reset Back Panel Power Connection: NEMA-style locking receptacle; matching AC connector also included Signal Output: Four-position barrier block (OUTPUT/COMMON/SAMPLED COMMON/CHASSIS GROUND) Signal Input: User Selectable BNC or Barrier Strip, Balanced or Unbalanced Interlock Connector: 25-pin D-sub connector used for amplifier control and status applications; also used in multi-amplifier applications |
| Communication Capabilities |
Current Monitor: 20A/V ± 1%; 10A/V ± 1% (differential configuration) Reporting: System Fault, Over Temp, Over Voltage, Over Load Remote Control via Interlock Connector: Force to Standby, Reset after a fault |
| Residual Noise | Less than 2.5 mA peak |
| Unit to Unit Phase Error | ±0.1 degrees |
| Maximum Output Voltage | 195 Vp |
| Load Constraint for Maximum Output | 0.5 ohms + 200 mH |
| Output Offset Current | Less than 10.0 mA DC peak |
| Standard Transconductance | 20 ±0.2% |
| Out Accuracy | Less than ±1% |
| Maximum Output Current | 70A RMS (100 Ap) |
| Input Characteristics |
Balanced with ground: Three terminal barrier block connector, 20k ohm differential Unbalanced: BNC connector, 10k ohm single ended Max Input Voltage: ±10V, balanced or unbalanced Common Mode Rejection(40 to 600 Hz): -58 dB minimum |
| Attribute | Value |
|---|---|
| Data Sheet | Click here to view |
