power quality - prime solution · 2018. 12. 11. · definition of harmonics, refers to the...

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PowerQuality


Static Var Compensator

무효전력보상장치

Noise Filter

노이즈필터

Noise Cutting Transformer

(NCT) 노이즈 차폐 변압기

Harmonic Filter

고조파필터

2 www.primesolution.co.kr

Definition of harmonics, refers to the frequency components of a multiple of the source frequency (Fundamental Frequency). For example, the harmonic frequency of 1.2GHz to 2.4GHz, 3.6GHz, 4.8GHz ... and so on.

고조파란 기본주파수에 대해 2배, 3배, 4배와 같이 정수의 배에

해당하는 주파수 성분을 말한다

Harmonics technical theory www.primesolution.co.kr

PRIMESOLUTION Power Quality Catalogue

FundamentalSecond

HarmonicThird

HarmonicFourth

HarmonicFifth

Harmonic

increase in the

continuous

60Hz 120Hz 180Hz 240Hz 300Hz .......++

50Hz 100Hz 150Hz 200Hz 250Hz .......++

What are Harmonics?

Harmonic waveform

The frequency of the harmonic

고조파란?

고조파 파형

고조파 주파수

Freq.

Size


• Overheating of cables from overcurrent at the neutral conductor can lead to damage or a fire

• An error in directing communication lines

• Increase of transposition between neutral conductor sites and malfunctioning of controller

• Increase of reactive power

• Malfunctioning of ELB, MCCB, ACB, ELD, or OCGR

• Overheating of contacts or shorts from loosened bolts caused by noise or vibration

• Increase of overheating (drop in capacity) or damage in the transformer

• Overheating of emergency generator and decline in the output

• Damage in the condenser or drop in lifecycle from overcurrent

• 중선선 과전류로 인한 케이블 과열로 소손 및 화재 발생

• 통신선 유도 장애 발생

• 중성선과 대지간 전위 상승 및 제어기기의 오동작

• 무효전력 증가

• ELB, MCCB, ACB, ELD, OCGR의 오동작

• 소음 및 진동 발생으로 볼트 풀림으로 접촉부 과열 발생 및 단락 사고 발생

• 변압기의 과열(용량 감소) 및 손실 증가

• 비상발전기 과열 및 출력 저하

• 과전류로 콘덴서 소손 및 수명 감소

Established the image impedance lower device in the lower part of the load reducing separates the video harmonic current to the power supply system

부하말단에 장치를 설치하여 임피던스를 낮추고,고조파전류를 전원계통과 분리함으로써 저감시킴

1. Reduction of electrical equipment accident

2. Life extension of power equipment

3. Malfunction prevention

4. Reduction of power cost

5. Efficiency of the generator

1. 전기설비사고의 감소

2. 전력설비의 수명연장

3. 장치의 오동작 방지

4. 비용절감 효과

5. 발전기의 효율성 증가



Effect of harmonics

The principle of harmonic reduction

Harmonic reduction effect

고조파의 영향

고조파저감원리

고조파저감효과


1. Reactor Installation (ACL / DCL)

2. Capacitor installation (High-voltage and low-voltage)

3. Multi-pulse of the converter (Increase in the output constant)

4. Phase shift Tr. Installation

5. Filter installation

(Today, the most common forms of harmonic mitigation involve either)

1. 리액터의 설치

2. 콘덴서 설치

3. 변환기의 다펄스화 : 출력상수 증가

4. 위상변위 설치

5. 필터설치

(고조파대책의 가장 일반적인 형태)

When the harmonic current exceeds the upper limit, there is a need for suppressing harmonics

고조파전류가 규제치를 초과하면 고조파를 억제해야 함.



Harmonic measures

Comparison of the filter type

고조파대책

필터유형 비교

type Description

Passive FilterPassive filters are series capacitor and reactor resonant circuits ‘tuned’ to present a high impedance path to the fundamental frequency and low impedance path to higher specific frequencies

Active FilterActive filter is the process by which harmonic current produced by the load is continuously monitored and an adaptive waveform is then generated which corresponds to the exact shape of the non linear portion of the load current

Hybrid FilterHybrid harmonic filter is a combination of passive and active harmonic filters is obtained by combining the various other functions such as reactive power compensator




Harmonic Standard - standards of harmonic voltage

Harmonic Standard - standards of harmonic current

고조파 규격 - 전압

고조파 규격 - 전류

Isc/ILIndividual Harmonic Order

<11 11~17 17~23 23~35 35< TDD

<20 4 2 1.5 0.6 0.3 5

20~50 7 3.5 2.5 1 0.5 8

50~100 10 4.5 4 1.5 0.7 12

100~1,000 12 5.5 5 2 1 15

1,000< 15 7 6 2.5 1.4 20

bus voltage at PCCindividual voltage

distortion(%)total voltage

distortion THD(%)

69kV and below 3 5

69.001kV through 161kV69.001kV ~ 161kV

1.5 2.5

161.001kV and above 1 1.5

Voltage

supply in underground line supply in aerial line

Voltage distortion factor (%)

Equivalent Disturbing Current (A)

Voltage distortion factor(%)

Equivalent Disturbing Current (A)

66kV below이하 3 - 3 -

154kV above 1.5 3.8 1.5 -

< IEEE std. 519 >

< KEPCO Harmonic voltage limits >

< IEEE std. 519 >

● Isc=Short circuit current

단락전류

● IL = Load current

부하전류


By lowering the impedance at the ZIG-ZAG connection, and passed through separate the harmonic currents flowing into the transformers and the line to the power supply

지그재그결선으로 임피던스를 낮춤으로써 영상고조파를 흡수하여 감소

< Neutral line is superimposed by harmonic >

< Before installation > < After installation >

*Harmonic which is a multiple of three of the fundamental frequency

*Third harmonic is most occurrence

*Neutral overheating, it is possible to generate a fire

＊기본주파수의 3배수인 고조파 ＊3차고조파가 가장 많이 발생한다 ＊중성선 과열로 화재발생 우려가 있다



Zero Sequence Harmonics Filter

Zero Sequence Harmonics principles and effects

영상고조파필터

영상고조파 저감원리


< FILTER installation Before > < FILTER installation after >



Active Harmonics Filter능동형 고조파필터

Active harmonic filtering (AHF) is the process by which harmonic current produced by the load is continuously monitored and an adaptive waveform is then generated which corresponds to the exact shape of the non linear portion of the load current.

비선형 부하로부터 발생되는 고조파를 모니터링하고 제거하는 장치

Section FILTER installation Before FILTER installation After Rate of change

Load current(A) 76.45 63.01 17.58% ↓

current THD(%) 74.48 4.78 93.58% ↓

Power factor(%) 76 98 28.94% ↑


Zero Sequence Harmonic Filter

HNF series

영상 고조파필터

■ SPECIFICATION

Model

220V, 380V

HNF-000B(premium SPD)

HNF-000P(premium)

HNF-000S(standard)

Operation status

Display

DISPLAY

(temperature, Current, voltage, Reverse phase, phase loss) Power LED

network

Configuration 3Ø4W

Frequency 60Hz

Capacity 3A ~ 100A

Power efficiency효율

97%

Insulation type형식

F type

Type설치타입

built in panel board

Cooling type냉각방식

Dry cooling

Dimensions크기

* Table 1. reference

Altitude고도

< 1000 m

Ambient Temperature동작온도

-20℃ ~ +45℃

Option 옵션

Monitoring device adhere to the panel board door

Zero Sequence Harmonic Filterwww.primesolution.co.kr



Filter capacity Premium SPD Premium Standard

3A 320×260×140 170×285×130 170×270×130

5A 320×260×140 180×320×130 180×320×130

6A 320×260×140 180×320×130 180×320×130

10A 320×260×140 180×320×130 180×320×130

12A 320×320×140 210×360×130 210×360×130

15A 320×320×140 210×360×130 210×360×130

18A 320×405×150 240×405×150 240×390×150

20A 320×405×150 240×405×150 240×390×150

24A 320×405×150 240×405×150 240×390×150

25A 320×405×150 240×405×150 240×390×150

30A 320×435×155 265×430×155 265×430×155

40A 320×470×180 290×460×160 290×460×160

50A 320×470×180 290×460×175 290×460×175

60A 320×500×210 290×460×185 290×460×185

70A 320×500×210 290×460×185 290×490×185

80A 400×550×260 400×550×260 400×550×260

90A 400×550×260 400×550×260 400×550×260

100A 400×630×260 400×630×260 400×630×260

< Table 1. size for each capacity. W x H x D >

▶ DIMENSION 크기

Zero Sequence Harmonic Filterwww.primesolution.co.kr



Active Harmonic Filterwww.primesolution.co.kr


Active Harmonic Filter능동형 고조파필터

■ SPECIFICATION

Model220V, 380V, 440V

HNF-A/25 HNF-A/35 HNF-A/50 HNF-A/60 HNF-A/100

network configuration 3Ø3W / 3Ø4W

parallel operation ×6 (Maximum)

Frequency 50 ~ 60Hz

CT Ratio 150/5~10,000/5

Topology design 3-level

Capacity 25A 35A 50A 60A 100A

Harmonics spectrum 2nd ~ 50st

Filter performance THDI < 5%

Power efficiency 97%

Switching frequency 20kHz

Reaction time < 100㎲

Response time < 10 ms

Cooling air requirement 270 ㎥/h 544 ㎥/h 1080 ㎥/h

Noise level < 54 dB < 56 dB < 58 dB

Type 19” Wall / rack

Dimensions 260×455×200mm 440×590×200mm 440×575×232mm

Weight 16kg 35kg 40kg

Altitude < 1500 m

Ambient temperature -5℃ ~ +45℃

Relative humidity 5% ~ 95%

Protection class IP20

Design / Approvals IEC 61000-4-2, 4-3, 4-4, 4-5, 4-6, 4-8, 4-11, IEC 60146, EN 55011 Class A, EN

50091-1, EN 50178

Compliance with Standards IEEE 519, IEC 61000-3-6, ER G5/4

HNF-A series


Active Harmonic Filterwww.primesolution.co.kr


■ SPECIFICATION

Model220V, 380V, 440V

HNF-A/75 HNF-A/150 HNF-A/225 HNF-A/300

network configuration 3Ø3W

parallel operation ×6 (Maximum)

Frequency 50 ~ 60Hz

CT Ratio 150/5~10,000/5

Topology design 3-level

Capacity 75A 150A 225A 300A

Harmonics spectrum 2nd ~ 50st (2차~50차)

Filter performance THDI < 5%

Power efficiency 98%

Switching frequency 18kHz

Reaction time < 300㎲


Cooling air requirement 2100 ㎥/h

Noise level < 60 dB

Type Cabinet

Dimensions 800×600×2200mm

Weight 210~480kg

Altitude < 1500 m


Relative humidity 5% ~ 95%

Protection class IP20

Design / Approvals IEC 61000-4-2, 4-3, 4-4, 4-5, 4-6, 4-8, 4-11, IEC 60146,

EN 55011 Class A, EN 50091-1, EN 50178

Compliance with Standards IEEE 519, IEC 61000-3-6, ER G5/4


< Compensation before > < Compensation after >

What at a power that does not even heat dissipation without performing, it can not be actually used power.The more reactive power is can be a power outage or power cut-off situation occurs.

실제로는 아무런 일도 하지 않는 사용할 수 없는 전력

Adjust the voltage by adjusting the reactive power, a device for reducing the power loss

무효전력을 조정하여 전력손실을 줄이는 장치

1. Improvement of voltage fluctuations in the distribution system

2. Power factor improvement

3. Improvement of the harmonics of the system

4. Suppression of Flicker

5. Improved productivity, saving of energy, the life of the electrical equipment and extension

1. 배전계통의 전압변동 개선

2. 역률개선

3. 계통의 고조파 개선

4. 플리커의 억제

5. 생산성 향상 및 에너지 절감

Reactive Power


Effect of SVC

무효전력

무효전력 보상장치

SVC 효과

Reactive Power technical theory www.primesolution.co.kr



Hybrid Static Var Compensator


하이브리드 무효전력 보상장치

무효전력 보상장치

■ SPECIFICATION

Model 220V, 380V, 440V

PH-SVC network configuration 3Ø3W / 3Ø4W

Frequency 60Hz

CT Ratio 150/5~10,000/5

Power factor

compensation range 95% ≤

Cooling type air cooling

Communication method RS485 / Modbus RTU

Alarm Possible

Power efficiency ≥ 96%

Monitoring LCD / HMI


Capacity 70KVAR 70~420KVAR

Type 19'' module Wall Cabinet

Dimensions 400×575×232mm 440×625×232mm 800×1500×2200mm

Weight 40kg 210~480kg

Altitude < 1500m


Relative humidity < 95%

Protection class IP20, IP52

■ SPECIFICATION

Model380V ~ 690V

PSVC network configuration 3Ø3W / 3Ø4W

Frequency 50 ~ 60Hz

CT Ratio 150/5~10,000/5

Power factor compensation range 99% ≤

Capacity 30kVAR ~

Cooling type air cooling

Communication method RS485 / Modbus RTU

Power efficiency ≥ 97%

Alarm Possible

Response time 0.1 ~ 4ms

Monitoring LCD / HMI

Dimension 800×1500×2350

Type Wall / rack

Altitude < 1500m


Relative humidity < 95%

Protection class IP20, IP54 PSVC

PH-SVC

Static Var Compensatorwww.primesolution.co.kr



All electrical / electronic factors that interfere with the systemunnecessary energy generated around the conductor in which a current flows is the electromagnetic noise.Thus generated noise is transferred to another device, causing performance degradation or malfunction.

노이즈란? 시스템을 방해하는 전기/전자적 요인이다.

전류가 흐르는 도체 주변에 발생하는 불필요한 에너지로 기기의 성능저하 및 고장의 원인이 된다

Conductive Noise can divide Normal Mode Noise and Common Mode Noise. Normal mode noise come into power line as Transient, Impulse etc. and going and returning between Line and Neutral. Common mode noise means the noise which come into from power line go through Earth (Ground) or move to reverse side (from Ground to power line). Most of normal mode noise occur in short time and disappear. It makes error of device and effect to electrical transmission data.Common mode noise can be affect to memory device and system, logic circuit based on ground electric potential or electric device which adopt the logic circuit.So EMI/RFI noise filter should have right circuit to filter these two kinds of noise and designed according to the range of frequency.

전도노이즈는 Transient, Impulse 등과 같이 전원선을 타고 들어와 Line-Neutral 간을 왕복하는 『차동 모드 노이즈(Normal

Mode Noise)』와, 전원선(Line)을 타고 유입된 노이즈가 대지(Earth)를 경유하거나 대지에서 유입된 노이즈가 전원계통으로 경유

하는 공통 모드 노이즈(Common Mode Noise)로 구분된다.

차동 모드 노이즈는 대부분 짧은 시간에 선간에 높은 전압을 나타내며 사라지는 것으로, 기기는 예고없이 오동작을(error) 하게 되고,

특히 전송중에 있는 데이터와 많은 영향을 줄 수 있다. 공통 모드 노이즈는 대지(Ground)를 기준 전위로 설계된 로직(Logic) 회로와

이를 내장한 전기전자 기기나 메모리(Memory) 소자 및 계통에 피해를 발생시킬 수 있다.

따라서, EMI 노이즈 필터는 이러한 두 종류의 노이즈를 제거하는 회로망을 필요로 하게 되며, 환경을 달리하여 발생되는 노이즈의

주파수 대역에 따라 전문적인 설계가 요구된다.

What is Noise?

Noise Sources

노이즈란?

노이즈분류

Noise technical theory www.primesolution.co.kr





IEC 61000-4-6 : Conducted RF Immunity

IEC 61000-4-6 relates to the conducted immunity requirements of electrical and electronic equipment to electromagnetic disturbances coming from intended radio-frequency (RF) transmitters in the frequency range 9 kHz up to 80 MHz. Equipment not having at least one conducting cable (such as mains supply, signal line or earth connection) which can couple the equipment to the disturbing RF fields is excluded.

No tests are required for induced disturbances caused by electromagnetic fields coming from intentional RF transmitters in the frequency range 9 kHz to 150 kHz.

EMI Noise / RFI

Basic waveform

EMI Noise

Combined waveform

IEC 61000-4-2 Electrostatic discharge immunity test

IEC 61000-4-3 Radiated, radio-frequency, electromagnetic field immunity test

IEC 61000-4-4 Electrical fast transient/burst immunity test

IEC 61000-4-6 Immunity to conducted disturbances, induced by radio-frequency fields

IEC 61000-4-8 Power frequency magnetic field Immunity test

IEC 61000-4-9 Pulse magnetic field immunity test

IEC 61000-4-12 General - High power electromagnetic (HPEM) effects on civil systems

IEC 61000-4-16Test for immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz

IEC 61000-4-17 Ripple on d.c. input power port immunity test

IEC 61000-4-25 HEMP immunity test methods for equipment and systems

Basic waveform

EMI Noise

IEC 61000-3-2Limits - Limits for harmonic current emissions (equipment input current ≤ 16 A per phase)

IEC 61000-3-3Limits – Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤ 16 A per phase and not subject to conditional connection

IEC 61000-3-11Limits - Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems - Equipment with rated current ≤ 75 A and subject to conditional connection

IEC 61000-3-12Limits - Limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤ 75 A per phase

IEC 61000-4-1 Overview of immunity tests (IEC 61000-4 series)

IEC 61000-4-2 Electrostatic discharge immunity test

IEC 61000-4-3 Radiated, radio-frequency, electromagnetic field immunity test

IEC 61000-4-4 Electrical fast transient/burst immunity test

IEC 61000-4-5 Surge immunity test

IEC 61000-4-6 Immunity to conducted disturbances, induced by radio-frequency fields

IEC 61000-4-7General guide on harmonics and interharmonics measurements and instrumentation, for power supply systems and equipment connected thereto

IEC 61000-4-8 Power frequency magnetic field Immunity test

IEC 61000-4-9 Pulse magnetic field immunity test

Table 1 - Test levels

Frequency range 150 kHz - 80 MHz

Level

Voltage level (e.m.F.)

"U0 dB(цV)"

"U0 V"

1 120 1

2 130 3

3 140 10

Xª Special

ª X is an open level.

IEC 61000-4-10 Damped oscillatory magnetic field immunity test

IEC 61000-4-11 Voltage dips, short interruptions and voltage variations immunity tests

IEC 61000-4-12 General - High power electromagnetic (HPEM) effects on civil systems

IEC 61000-4-13Harmonics and interharmonics including mains signalling at a.c. power port, low frequency immunity tests

IEC 61000-4-14Voltage fluctuation immunity test for equipment with input current not exceeding 16 A per phase

IEC 61000-4-16Test for immunity to conducted, common mode disturbances in the frequency range 0 Hz to 150 kHz

IEC 61000-4-17 Ripple on d.c. input power port immunity test

IEC 61000-4-18 Damped oscillatory wave immunity test

IEC 61000-4-25 HEMP immunity test methods for equipment and systems

IEC 61000-4-27Unbalance, immunity test for equipment with input current not exceeding 16 A per phase

IEC 61000-4-28Variation of power frequency, immunity test for equipment with input current not exceeding 16 A per phase

IEC 61000-4-29Voltage dips, short interruptions and voltage variations on d.c. input power port immunity test

IEC 61000-4-30 Power quality measurement methods

IEC 61000-4-34Voltage dips, short interruptions and voltage variations immunity tests for equipment with mains current more than 16 A per phase

EMI Noise + Surge


·Shielding

·Grounding

·Matching

·Filtering

·Isolation

·Impedance level

·차폐

·접지

·평형

·여과

·격리

·조정

*Reduction of the noise level

*block the transmission route

*Filtration of noise

*Immune strengthening of damage equipment

*노이즈레벨 감소

*경로차단

*여과

*피해장치의 면역강화

EMI Solution

Noise cause

2nd measures : To minimize the be delivered, through the filter

노이즈가 적게 전달되도록조치

1st measures : Cause Delete 원인제거

Receiving end

3rd measures : Shielding 차폐

Protection against noise 노이즈대책

Pathway



Emission The generation of electromagnetic energy, whether

deliberate or accidental, by some source and its release

into the environment. EMC studies the unwanted

emissions and the countermeasures which may be taken

in order to reduce unwanted emissions.

Susceptibility The tendency of electrical equipment, referred to as the

victim, to malfunction or break down in the presence of

unwanted emissions, which are known as Radio frequency

interference (RFI).

Immunity The ability of equipment to function correctly in the

presence of RFI, with the discipline of "hardening"

equipment being known equally as susceptibility or immunity.

A third class studied is coupling, which is the mechanism by

which emitted interference reaches the victim.

EMC = EMI + EMS


• When a ground potential is a difference, where it can not be grounded, using the location grounding

condition is poor Also it will be effective.

• It with stands high voltage surge

• It is suitable for Noise measures, such as medical equipment.

• Generated from the noise and the power supply line that is generated from the device. There is a two-way

blocking properties that blocks both of noise.

• there is no adverse noise level is high.

• 접지전위가 다르거나 접지할 수 없는 곳, 접지조건이 나쁜곳에도 효과를 발휘한다

• 고전압서지에 견딜수 있다

• 의료기기등의 노이즈 대책에 적합

• 장치와 전원라인에서 발생하는 노이즈를 차단하는 양방향 차단특성이 있다

• 노이즈레벨이 높아지는 역효과 없다

NCT is a sort of transformer developed to cut off noise rather than to

decrease or increase voltage, the general function of transform

Many layers of electrostatic shields are installed in the vicinity of the primary and secondary coil and the core

in the structure of transformers.

This device fundamentally prevents noise from being delivered by the electrostatic capacitance coupling and

electronic induction by preventing the coil placement, core quality and shapes from being crossed between

coils by the high-frequency noise magnetic flux.

NCT 는 트랜스의 일반적인 기능인 전압의 승,강압 보다는 노이즈의 차단을 목적으로 개발된 변압기의 일종

일반트랜스의 구조에 1,2차 코일과 코어주변에 여러겹의 정전차폐 실드를 설치하고, 코일의 배치및 코어의 재질, 형상을

고주파노이즈 자속이 코일 상호간에 교차되지 않도록 하여 정전용량성 결합및 전자유도에 의한 노이즈의 전달을 근본적으로 방지.


The advantage of NCT NCT장점

NCT technical theory www.primesolution.co.kr



Power Line Noise Filter

PLF series

노이즈필터

Power Line Noise Filterwww.primesolution.co.kr


Model PLF250S-OOO PLF450D-OOO

Rated system Voltage single-phase 250V 3-phase 120~450V

Capacity 10A~300A

Leakage current 1mA MAX 2mA MAX

Frequency 50/60Hz

Test Voltage (10㎃)

Line-Earth( ACV, MIN) 2500V 1500V

Dimensions •Table 2. reference


Temperature rise 30℃, MAX 40℃, MAX

< R : Resistor L : Inductor C : Condenser >

Single-Phase 3-Phase


Power Line Noise Filterwww.primesolution.co.kr


Model A B C D E

PLF450D-10

57 170 155 78 102PLF450D-20

PLF450D-30

PLF450D-40

PLF450D-50

80 210 195 100 130

PLF450D-60

PLF450D-80

PLF450D-100

PLF450D-125

PLF450D-150

PLF450D-200

140 340 310 110 140PLF450D-250

PLF450D-300

Model A B C D E

PLF250S-50D 75 210 195 110 130

Model A B C D E

PLF450D-50D95 210 195 110 130

PLF450D-75D

PLF450D-100D140 310 290 110 140

PLF450D-150D

Model A B C D E

PLF450D-50T100 280 250 106 130

PLF450D-75T

PLF450D-100T

140 370 350 130 150PLF450D-125T

PLF450D-150T

Model A B C D E

PLF450D-20T

57 170 155 78 102PLF450D-30T

PLF450D-40T

PLF450D-50T

80 210 195 100 120

PLF450D-60T

PLF450D-80T

PLF450D-100T

PLF450D-125T

PLF450D-150T

PLF450D-200T

140 340 310 110 140PLF450D-250T

PLF450D-300T

< Three Phase - Inverter Output Side Applying >

< Single Phase Filter >

< Three Phase Filter >

< Single Phase 2 Step Filter >

< Three Phase 2 Step Filter >

< Three Phase 3 Step Filter >

Model A B C D E

PLF250S-1039 85 75 65 54

PLF250S-20

PLF250S-30

57 170 155 78 102PLF250S-40

PLF250S-50

PLF250S-60

80 210 195 110 130

PLF250S-80

PLF250S-100

PLF250S-125

PLF250S-150

PLF250S-200

140 340 295 120 140PLF250S-250

PLF250S-300



■ SPECIFICATION

Model PTR220-OOO

Rated system Voltage single-phase 220/220V (Primary / Secondary)

Capacity 1kVA 3kVA 5kVA 10kVA 15kVA 20kVA 25kVA 30kVA

Insulation H Class

Frequency 60Hz

Shielding Method Tripple Copper Shielding

Dimensions (W x H x D) 240 x 207 x 245 240 x 207 x 245 300 x 345x 390 400 x 500 x 500 500 x 500 x 500 500 x 500 x 500 500 x 500 x 500 650 x 750 x 550

Surge Reduction 1/100 output , 99% reduction

Noise Reduction Ratio -40 [dB]

Model PTR380D-OOO

Rated system Voltage 3-phase 380/ 380V (Primary / Secondary)

Capacity 1kVA 3kVA 5kVA 10kVA 50kVA 100kVA 200kVA 300kVA

Insulation H Class

Frequency 60Hz

Shielding Method Tripple Copper Shielding

Dimensions (W x H x D) 260 x 325 x 240 310 x 335 x 290 310 x 335 x 290 500 x 500 x 500 500 x 900 x 900 600 x 1100 x 1100 700 x 1300 x 1200 700 x 1300 x 1200

Surge Reduction 1/100 output , 99% reduction

Noise Reduction Ratio -40 [dB]


PTR series

노이즈 차폐 변압기


W W

D H HD

Noise Cutting Transformerwww.primesolution.co.kr



■ Perfect Shielding Effect

▶ True Isolation - Tripple Shielding Method

▶ Common-Mode Noise Elimination

(3중차폐방식)

(커먼모드노이즈 제거)

▶ 노이즈 전도특성

Input Surge Voltage Waveform

: 6,000 V (1,000 V,50㎲/div)

Output Voltage of

53V (100 V,50㎲/div)

AC INPUT

E POWER

AC OUTPUT

E LOAD

Noise Cutting Transformerwww.primesolution.co.kr


power quality - prime solution · 2018. 12. 11. · definition of harmonics, refers to the...

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