Voltage- and Frequency-Relay UFR1001
Voltage- and Frequency Relay with integrated Vector-shift Relay, sealable
Product description
The voltage- and frequency-relay UFR1001 monitors voltage and frequency in two- or three-phase networks with or without neutral and switches off rapidly when required.
The device can be easily adapted to the requirements of the carrier of the power network. With the integrated vector-step relay it can also monitor networks at synchronous generators.
After selecting a basic program, for each relay limits can be programmed for over-/undervoltage and over-/underfrequency. In programs with vector-stepmonitoring, K2 is used for vectorstep only.
Applications are monitoring power-networks at great solarplants, in block power heating stations, also with synchronous generators (vector shift) or generally monitoring the quality in power networks at machines or power-supplies.
- monitoring of over- and undervoltage 40…520 V
- monitoring of over- and underfrequency 45…65 Hz
- monitoring of quality of voltage (10-minutes-average)
- monitoring of vector-shift 2…20 °, 1 or 3-phase
- Switching-delay adjustable <0,05…60,0 s
- Switching-back-delay adjustable 0…1000 s
- Alarm-counter for up to 100 alarms (with measured value and reason)
- Added time of alarm up to 999 hours. Displays the time, alarms have been active (while supply voltage applied only)
- LEDs for alarms, allocation of values and states of relays
- 2 output-relays, each for monitoring frequency and/ or voltage
- function of relays (nc- or no -operating mode) programmable
- interlocked switching or autoreset
- input for Enable / Reset
- easy programming by help of basic programs
- Sealing of settings is possible
- code-lock against manipulation of settings
- universal power-supply AC/DC 24-270 V
- housing for DIN-rail-mount, 70 mm wide, mounting height 66 mm
Technical Data
Power supply
Rated supply voltage Us
AC/DC 24-270 V, 0/45...65 Hz, <5VA
DC: 20,4...297 V, AC: 20,4...297 V
Relay output
2 change-over contacts
type 2, see general technical informations
Voltage
Measuring voltage phase - phase
AC 40...520 V
Measuring voltage phase - N
AC 40...300 V
Hysteresis
adjustable 1...99 V
Frequency
45...65 Hz
Error (with N)
± 0,8% of measured value ± 1 Digit
Error (without N)
± 1% of measured value ± 1 Digit
Measuring functions
3-phase with / without neutral, single phase to neutral
Switching-delay
adjustable 0,05...60,00 s
Switching-back delay (zerovoltage-proof)
adjustable 0 (> 200 ms)...1000 s
Frequency
Measuring range
45,00...65,00 Hz
Hysteresis
0,05...5,00 Hz
Error
± 0,05 Hz ± 1 Digit
Switching-delay
adjustable 0,1...99,9 s
Switching-back delay
adjustable 0...240 s
Vector-Shift
Mathod
1- or 3-phase
Measuring range
2,0...20,0 °
Hysteresis
0,1 °
Switching-delay
< 50 ms
Switching-back delay
adjustable 3...240 s
Delay at Us on
adjustable 2...20 s
Test Conditions (EN 60 255)
Rated impulse voltage
4000 V
Overvoltage catagory
III
Rated Insulation voltage
AC 300 V
Contamination level
2
Isolation material group
II
On-period
100 %
Rated ambient temp. range
-20 °C...+55 °C EN 60 068-2-1 dry heat
Interference resistance
EN 61 000-6-2
Interference transmission
EN 61 000-6-4
Housing
Design
V 4
Dimensions (h x w x d)
90 x 70 x 58 mm, mounting height 66 mm
Protection housing
IP 30
Protection terminals
IP20
Attachment
DIN-rail 35 mm or screws M4
Weight
app. 200 g
Certificates
FAQ / Product videos