Voltage and Frequency Relay Block 7RW80 With (1No)

Features and technical specifications:

1. Motor Protection
2. VT inputs : 3 No’s
3. Binary inputs : 3/7 No’s
4. Binary output’s : 5/8 No’s

The following functions are available

1. Under-/over voltage protection (27/59)
2. Displacement voltage (64/59N)
3. Under-/over frequency protection (81U/O)
4. Load restoration
5. Over excitation protection (24)
6. Jump of voltage vector
7. Phase-sequence monitoring (47)
8. Synch-check (25)
9. Rate-of-frequency change (81R)
10. Rate-of-voltage change
11. Lockout (86)

This Voltage and Frequency Relay Block is easily insert in your schematic diagram and connect as you like way.

fthe SIPROTEC Compact 7RW80 detects any deviation from the permitted voltage, frequency or overexcitation values, it will respond according to the values set. The relay can also be applied for the purposes of system decoupling and for load shedding if ever there is a risk of a system collapse as a result of inadmissibly large
frequency drops. An integrated load restoration function allows the re-establishment of the power system after recovery of the system frequency. The 7RW80 features “flexible protection functions”. 20 additional protection functions can be created by the user. For example, a rate-of-frequency change or a rate of-voltage change function can be created. The relay provides circuit-breaker control, additional primary switching devices (grounding switches, transfer switches and isolating switches) can also be controlled from the relay. Automation or PLC logic functionality is also implemented in the relay. The integrated programmable logic (CFC) allows the user to add own functions,
e.g. for the automation of switchgear (including: interlocking, transfer and load shedding schemes). The user is also
allowed to generate user-defined messages. The communication module is independent from the protection. It can easily be exchanged or upgraded to future communication protocols. The SIPROTEC Compact 7RW80 unit is a
numerical protection relay that can perform control and monitoring functions and therefore provide the user with a cost effective platform for power system management, that ensures reliable supply of electrical power to the customers. The ergonomic design makes control easy from the relay front panel. A large, easy-to-read display was a key design factor.