ZEZ SILKO SUPER PFR 12

To Next Page

SUPER PFR

M98235804-03-11D

POWER FACTOR CONTROLLER SUPER PFR

1.- Principal functions

- Cos φ controller  Capacitor connection (6 or 12 steps)

- Network analyzer  Measurement of electrical parameters

- Alarm manager  Display and automatic solution

This manual is intended as a rapid guide to the use and operation of the SUPER PFR

controller.

ny manipulation or use of the equipment different from that specified by the

manufacturer may compromise user safety. The apparatus must be disconnected

from the power supply before carrying out any maintenance operation. In the event of

failure in the operation or the protections, the unit must be left out of service and its

reconnection must be prevented until the problem has been corrected.

.- Connections

A current transformer must be installed for the start-up (I

/ 5 A) depending on the

total current of the load.

The regulator power supply voltage will be two-phase, preferably L1 for U

and L2

for U

, and the current will preferably be taken from L1. It must be supplied by

means of an automatic switch. See cable section and protections in the table of

technical features.

The current transformer must be placed in such

a way that it measures the total current of the

loads plus the capacitors.

The transformer for the leakage current must be

placed so that it measures the current in the

capacitor bank and must include lines L1, L2, L3

and N.

The unit has a switched relay exclusively for the alarm outlet.

 2.1.- Communications

The SUPER PFR regulators can be connected to a computer or another unit by

means of the standard RS-485 bus included. This system is able to focus data

on a single registry point (Power Studio® System).

In a network of equipment, the SUPER PFR communicates by question-answer

(slave).

The SUPER PFR communicates with the MODBUS RTU© protocol, which

enables it to access the electrical parameter and the main variables and

configurations. Contact the manufacturer for the table of addresses.

See section 4.3. to change the communications configuration.

3.- Technical features

Main power supply and voltage

measurement.

480, 400, 230, or 110 Vac. +15 % -10 %; 50 / 60 Hz, (see label)

Power supply: U

- U

. Measurement U

, U

y U

Power supply cables Section 1.5 mm

, gl 0.5 to 2 A protection fuse

Current measurement circuit

Current transformer, I

/5 A AC., preferably on phase L1. Min.

cable section. 2.5 mm

Leakage current measurement

circuit

Nominal secondary transf. current: I

∆

sec = 2 mA AC.

Transformer with ratio of 500: I

∆

= 1 A AC. +20%

Current measurement margin

Current I: 0.05 to 5 A AC. (maximum overload +20 %)

Leakage current I

∆

: 0.01...1 A AC. (maximum overload +20 %)

Measurement accuracy

Voltage and current: 1 %; cos



: 2 %  1 digit

Temperature measurement

Approx. external temperature. Range: 0...80 ºC. Accuracy:  3 ºC

Consumption 8.2 VA (empty) ; 9.3 VA (6 relays); 11 VA (12 relays)

Output Relays. Contacts for Umax. 250 Vac., 4 A AC., AC1.

Cabling and output relay

protection

Cable section 1.5 mm

, protection with circuit breaker (C curve)

of 6 A or gl 6 A fuse

Alarm relay Switched relay for use exclusively for the alarms

Standards

IEC 62053-23 (2003-01) Ed. 1.0

IEC 61326-1, EN61010-1

UL 508

Safety /Insulation Category III, Class II , according to EN 61010-1

Protection degree

IP40 (equipment mounted, cabinet front panel)

IP30 (equipment not mounted) according to EN-60529

Admissible environmental

conditions

Temperature: -20...+60 ºC; Relative humidity: max. 95 %

(without condensation). Max. altitude: 2000 m

Control system FCP (a programme that minimises the number of operations)

Communications

Interface: RS-485. Protocol MODBUS.

Speed: 9600, 19200, 38400

The SUPER PFR regulator

measures and operates in 4

quadrants according to the

attached diagram.

Only for

SUPER PFR 12

SUPER PFR

Need help?

Do you have a question about the ZEZ SILKO SUPER PFR 12 and is the answer not in the manual?

The SUPER PFR is a power factor controller designed for managing reactive energy compensation in electrical installations. It functions primarily as a Cos φ controller, connecting either 6 or 12 steps of capacitors to optimize power factor. Beyond this, it acts as a network analyzer, providing measurements of various electrical parameters, and includes an alarm manager for displaying and automatically resolving issues.

Function Description

The core function of the SUPER PFR is to maintain an optimal power factor by automatically connecting or disconnecting capacitor steps. It continuously monitors the electrical network, identifying the need for reactive power compensation. The device operates in four quadrants, allowing it to measure and manage both imported and exported power, as well as inductive (lagging) and capacitive (leading) reactive power. This comprehensive approach ensures efficient energy management and compliance with power factor regulations.

The controller's operation is based on a sophisticated algorithm (FCP - a program that minimizes the number of operations) that determines the optimal capacitor steps to engage, thereby reducing unnecessary switching cycles and extending the lifespan of the capacitors.

Important Technical Specifications

Power Supply and Voltage Measurement: The device supports a wide range of supply voltages: 480, 400, 230, or 110 Vac, with a tolerance of +15% to -10%, at 50/60 Hz. Power is supplied via UL1-UL2, and voltage measurement includes UL1, UL2, UL3, and UN. Power supply cables should have a section of 1.5 mm² and be protected by a 0.5 to 2 A fuse.
Current Measurement: Requires a current transformer (CT) with an In/5 A AC ratio, preferably on phase L1. Minimum cable section for current measurement is 2.5 mm².
Leakage Current Measurement: Utilizes a transformer with a nominal secondary current of 2 mA AC and a ratio of 500:1, 1 A AC.
Measurement Margin: Current measurement ranges from 0.05 to 5 A AC (with a +20% overload), and leakage current from 0.01 to 1 A AC (with a +20% overload).
Measurement Accuracy: Voltage and current accuracy is 1%, while cos φ accuracy is 2% ± 1 digit.
Temperature Measurement: Measures approximate external temperature in the range of 0 to 80 °C, with an accuracy of ± 3 °C.
Consumption: Varies with the number of active relays: 8.2 VA (empty), 9.3 VA (6 relays), 11 VA (12 relays).
Output: Relays with contacts for Umax. 250 Vac, 4 A AC, AC1. Output relay cabling should be 1.5 mm² and protected by a circuit breaker (C curve) of 6 A or a gl 6 A fuse.
Alarm Relay: A dedicated switched relay is provided exclusively for alarm outputs.
Safety/Insulation: Category III, Class II, according to EN 61010-1.
Protection Degree: IP40 for equipment mounted on a cabinet front panel, and IP30 for equipment not mounted, according to EN-60529.
Environmental Conditions: Operates in temperatures from -20 to +60 °C, with relative humidity up to 95% (without condensation) and a maximum altitude of 2000 m.
Communications: Features an RS-485 interface with MODBUS protocol, supporting speeds of 9600, 19200, and 38400 baud. This allows connection to a computer or other units, enabling data centralization (e.g., with Power Studio® System) and slave communication in a question-answer network.
Standards: Complies with IEC 62053-23 (2003-01) Ed. 1.0, IEC 61326-1, EN61010-1, and UL 508.

Usage Features

Installation: A current transformer is essential for start-up. The regulator's power supply should be two-phase (L1 for UL1 and L2 for UL2), preferably with current taken from L1, and protected by an automatic switch. The current transformer must measure the total current of both loads and capacitors. A separate transformer for leakage current should measure the current in the capacitor bank, including lines L1, L2, L3, and N.
RUN Mode: In this mode, the equipment compensates reactive energy. Users can navigate through different measurement screens using the arrow keys to view various parameters. The arrow displays maximum values, while the arrow displays minimum values. Instantaneous values can be restored by pressing the key or waiting 5 seconds. Maximum and minimum values can be reset by holding down the respective keys.
SETUP Mode: This mode allows configuration of equipment parameters. The arrow keys navigate screens, and the key enters edit mode. Parameters can be adjusted using the or keys and confirmed with the key.
Plug & Play (P&P): A key feature for automatic setup. Holding down initiates a P&P process that automatically adjusts PHASE, C/K, PROG, and STEPS parameters. This requires an inductive load with cos φ > 0.5 and stable variation (<10%). After P&P, the primary of the CT must be configured (IP screen) for accurate current and power measurements.
Parameter Configuration:
- IP: Configures the primary current of the installed transformer (range 5-9999 A).
- COS: Sets the target cos φ (inductive or capacitive) between 0.70 and 1.00.
- PHASE: Configures the phase based on CT connection.
- C/K: Configures the ratio between the first phase current and the current transformer (range 0.02-1.00). A table is provided for common configurations at 400 V.
- PROG: Defines the ratio of kvar between different steps (e.g., 10+20+20+20 kvar is program 1222). Custom programs can be set between 1111 and 1999.
- STEPS: Configures the number of capacitor steps.
- DELAY: Sets the connection time between steps (4-999 s). The reclosing system time is 5 times the DELAY.
- COMM: Configures Baud Rate, parity (none-odd-even), stop bits, and number of peripherals (1-255).
- On/Off/Auto: Configures the state of battery capacitors (On: always connected, Off: always disconnected, Auto: regulator decides).
- DISPLAY: Adjusts backlight luminosity and state (On: always alight, Off: always out, Auto: goes out after 5 minutes of inactivity).

Maintenance Features

Error and Alarm Codes: The device displays various error and alarm codes (E01-E14) with flashing backlight, indicating issues such as no current, over-compensation, sub-compensation, over-current, over/low voltage, THD alarms, leakage alarms, cosine alarms, temperature alarms, repeated leakage alarms, and leakage alarm in capacitors.
AUTO-TEST: The equipment allows a self-test for capacitor maintenance. This is initiated from the SETUP screens by pressing and simultaneously for a few seconds. In AUTO-TEST, the and keys display data for each capacitor. The load must be stable during this process. To exit, press and for a few seconds, or press and hold to go to the checking screen.
Safety Precautions: Any manipulation or use outside manufacturer specifications can compromise user safety. The apparatus must be disconnected from the power supply before any maintenance. In case of operational failure or protection issues, the unit must be taken out of service, and reconnection prevented until the problem is corrected.