Delta PQC Series Bedienungsanleitung

Delta PQC Series

Active Power Filter

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User Manual

PQC Series Active Power Filter

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This manual contains important instructions and warnings that you should follow

during the installation, operation, storage and maintenance of this product. Failure

to heed these instructions and warnings will void the warranty.

(“Manual”), including but not limited to the contents, information, and figures are solely owned and

reserved by Delta Electronics Inc. (“Delta”). The Manual can only be applied to the operation or the

use of this product. Any disposition, duplication, dissemination, reproduction, modication, translation,

extraction, or usage of this Manual in whole or in part is prohibited without the prior written permission

of Delta. Given that Delta will continuously improve and develop the product, changes may be made

to the information in this Manual at any time without obligation to notify any person of such revision

or changes. Delta will make all possible efforts to secure the accuracy and the integrity of this

Manual. Delta disclaims any kinds or forms of warranty, guarantee, or undertaking, either expressly

or implicitly, including but not limited to the completeness, faultlessness, accuracy, non-infringement,

merchantability or tness for a particular purpose of the Manual.

III

Table of Contents

Chapter 1 : Important Safety Instructions ---------- 1

1.1. Safety Precautions ------------------------------------------------------------------ 1

1.2. Wiring Warnings --------------------------------------------------------------------- 1

1.3. Usage Warnings --------------------------------------------------------------------- 2

1.4. Storage Precautions ---------------------------------------------------------------- 2

1.5. Symbols-------------------------------------------------------------------------------- 2

Chapter 2 : Introduction ---------------------------------- 3

2.1 Product Introduction ---------------------------------------------------------------- 3

2.2 PQC Series APF Wall-mounted Module Category-------------------------- 4

2.3. Functions & Features---------------------------------------------------------------------- 6

2.4. Mechanism & Appearance -------------------------------------------------------- 7

2.4.1 Wall-mounted Module Appearance and Dimensions----------- 7

2.4.2 LCM (Liquid Crystal Monitor)----------------------------------------- 9

2.5. Package Inspection ----------------------------------------------------------------11

Chapter 3 : Installation and Wiring-------------------12

3.1 Pre-installation Conrmation ----------------------------------------------------12

3.2 Installation Environment ----------------------------------------------------------12

3.3 Installation of the Wall-mounted Module--------------------------------------14

3.4 Installation of the LCM ------------------------------------------------------------15

3.5 Wiring of the Wall-mounted Module -------------------------------------------16

3.6 CT Installation & Wiring for Current Detection of Harmonic Source---16

3.6.1 CT Selection Precautions --------------------------------------------16

3.6.2 Basic CT Installation & Wiring --------------------------------------18

3.7 Wiring for the Communication Terminals -------------------------------------19

Chapter 4 : APF Operation Procedures-------------20

4.1 Inspection Before Start-up -------------------------------------------------------20

4.2 Start-up Procedures ---------------------------------------------------------------21

PQC Series Active Power Filter

Chapter 5 : LCM Display and Settings --------------22

5.1 Description of LCM Display ------------------------------------------------------22

5.2 LCM Display Hierarchy -----------------------------------------------------------23

Chapter 6 : Maintenance---------------------------------24

Chapter 7 : Troubleshooting ---------------------------25

Chapter 8 : Warranty --------------------------------------26

Chapter 1 Important Safety Instruction

Chapter 1 : Important Safety Instructions

1.1. Safety Precautions

yy The active power lter (‘APF’) shall be connected with a power grid system and in parallel

with harmonic sources (i.e. nonlinear loads) as a means to control harmonics.

yy The APF shall not be exposed to rain or wet conditions, and shall be away from any am-

mable uid, gas or explosives.

yyAdequate space shall be left at the top and bottom of the APF for well ventilation and con-

venient maintenance.

yy To minimize re and electric shock hazards, installation must be conducted by qualied

service personnel in a controllable working environment.

yy To minimize electric shock hazards, all maintenance work must be carried out by qualied

technician. Before maintenance, ensure that all power supply is completely cut off.

yyHigh voltage hazards! It takes over 15 minutes for the DC capacitor to discharge. Please

make sure the device has discharged completely before carrying out any operation.

yyTo minimize electric shock hazards, please read this Manual carefully before switching

the power on, and keep this Manual properly for permanent reference.

yyWhen the APF is used in IT applications, please install an insulation resistance detection

device so that the alarm will go off when a protection earth fault is detected.

1.2. Wiring Warnings

yyTo prevent a possible risk of current leakage, the APF shall be earthed properly.

yyWith regard to wiring, the compensation capacity and the current-carrying capacities of

cables shall be taken into account.

yyThe incoming lines of the APF shall be connected with appropriate protective devices. It is

recommended to provide every module with an over-current protective device with a third-

party certication: rated voltage 400V and rated current 125A. Besides, take the installa-

tion position of the equipment into consideration and choose the protective devices with

adequate breaking capacity.

yy The capacity of the protective device shall t that of the APF.

yyTo prevent scaling caused by high temperature, after the power is cut off, the operating

switch shall be allowed to cool down before being operated again.

yyThe three-phase, four-wire APF is applicable to the power grid system with neutral

grounding.

PQC Series Active Power Filter

1.3. Usage Warnings

yySince the APF is used for harmonic compensation of the power grid, the capacity selec-

tion of the APF shall be subject to the harmonic content to avoid poor compensation due

to insufcient capacity.

yySince the APF is used for harmonic control, it shall be connected to an external CT for

current detection (CT: Current transformer).

yyTo guarantee sound reliability and avoid overheating, do not block or cover the air inlet

and outlet of the APF.

yyThe working temperature range of the APF is -10°C - 50°C, beyond which the APF will not

work.

yyWhen installation, ensure that the height from the ground to the top of the APF is not less

than 1800mm. After installation, ensure that no objects are placed on the APF’s air outlet;

otherwise, the objects might drop into the air outlet to inuence the APF ventilation and

operation.

1.4. Storage Precautions

yyPlease use the original packing material to protect the APF in order to avoid damage by

rodents.

yy If you don’t install the APF immediately after receiving it, please store the APF in a dry

and ventilated indoor place, where shall be maintained between -40°C and 70°C with

relative humidity no higher than 95%.

1.5. Symbols

Item Symbol Meaning

1R Phase R of three-phase power supply

2S Phase S of three-phase power supply

3T Phase T of three-phase power supply

4N Neutral line

5Main grounding terminal

6E.P.O button

Chapter 2 Introduction

Chapter 2 : Introduction

2.1 Product Introduction

The active power lter ('APF'), a harmonic compensator for the three-phase power grid, is

applied to the harmonic control of the power grid. Features of the device are shown as below:

yy Compensates a wide range of harmonic frequency and any specied harmonic.

yyRapid dynamic responses, stable parameters and good harmonic compensation results.

yy High efciency and low thermal loss.

yyThe system adopts an advanced 3-level structure and consists of digital signal proces-

sors (DSP), large programmable controllers and high power electronic devices, which has

excellent performance and superior reliability.

yySupports remote power on/ off functions via computer monitoring.

Please see

Figure 2-1

for the APF block diagram. The APF system is composed of a wall-

mounted module and a LCM (Liquid Crystal Monitor). The external CT is used for the

detection of load current in the module and extraction of harmonic components, based

on which, the main power controller controls the main power circuit to generate reverse

harmonic current; in this way, the load-carrying harmonic components are counteracted.

Please note that the wall-mounted module and the LCM are packed separately. If you would

like to buy both of them, you should purchase them separately.

The wall-mounted module can work either alone or in parallel with others. The LCM monitors

and controls the wall-mounted module online. If monitoring function is not required, there is

no need to buy and install the LCM.

PQC Series Active Power Filter

( Figure 2-1: APF System Block Diagram )

Non-linear load

Single-phase load

Three-phase load

Harmonic

detection of

load current

Main

power

circuit

LCM

Optional Module

APF System

Power grid

Main

power

control

Module

Main

power

circuit

Main

power

control

Harmonic

detection of

load current

2.2 PQC Series APF Wall-mounted Module Category

The PQC series APF product includes the wall-mounted module and the LCM. Table 2-1 lists

the wall-mounted module’s model, capacity and wiring system.

Table 2-1: PQC Series APF Wall-mounted Module Specications

Model Capacity System

PQCA-400-50-50WM3 50A 3P3W

PQCA-400-50-50WM4 50A 3P4W

PQCA-400-50-75WM3 75A 3P3W

PQCA-400-50-75WM4 75A 3P4W

The APF’s wall-mounted module is available in two wiring modes, i.e. 3P3W and 3P4W,

and is available in two specications in terms of the output current, i.e. 50A and 75A. The

3P4W module shall be connected to the neutral line, and it is able to compensate the current

of neutral line, including zero sequence fundamental current and 3rd harmonic current;

however, for the 3P3W module, it is unnecessary to connect the neutral line, and the module

is unable to compensate the current of neutral line, such as zero sequence fundamental

current and 3rd harmonic current. Figure 2-2 shows the APF’s wall-mounted module.

Chapter 2 Introduction

174

600

440

( Figure 2-2: PQC Series APF Wall-mounted Module )

Use the provided LCM connection wire (packed in the LCM package) to connect the LCM’s

DATABUS port and the wall-mounted module’s communication terminals. After that, you can

use the LCM to monitor the operation status of the wall-mounted module and set up relevant

parameters. The embedded design of the LCM is convenient for customer to install it on any

of customer provided panel. Figure 2-3 shows the LCM appearance.

PQC Series Active Power Filter

2.3. Functions & Features

yy Multifunction: the APF can simultaneously realize the purposes of harmonic, reactive and

three-phase unbalance control.

yy Superior harmonic control effects: up to 97% harmonics of the system can be effectively

ltered.

yy Excellent compensation of reactive power: the device can realize rapid (ms-grade re-

sponse), precise (-0.99< PF< 0.99) and bi-directional (both capacitive and inductive com-

pensations) reactive power control.

yy Outstanding compensation of unbalanced three-phase: the device can realize correc-

tion for either active or reactive unbalance, and can eliminate the neutral current (for the

three-phase four-wire series only).

yyWide input voltage and frequency ranges, suitable for the applications with diesel genera-

tors and harsh power supply conditions, line voltage: 308V ~ 456V.

yy Low power loss (lower than 3% of rated device power) and actual efciency > 97%.

yy Sound stability: the device acts as an innite impedance to the power grid system and

has no effect on the impedance of the power grid system; it is able to produce accurate

and awless output waveform, which has no effect on other equipment.

yy Applicable to all work conditions: the device is able to operate under high temperature up

to 50°C and salt spray corrosive conditions, can withstand grade-9 seismic intensity and

is compatible with the diesel engine generating system.

yy User-friendly interface (in both Chinese and English): event log, automatic fault alarm,

alarm history and other parameter setting functions.

yy Complete functions: automatic self-checking start, settable soft start time, emergency

stop (E.P.O), etc.

( Figure 2-3: LCM )

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