6500V SOFT STARTER Thyristor Assembly

6500V thyristor assembly consists of two anti-parallel SCRs are pressed with a relatively high force onto heat-sinks which also serve as electrical contacts to the thyristor terminals.

Features:

1,High voltage 6500V thyristor components

2,Natural cooling or Air cooling with heatsink

3,Press-pack SCR devices

Typical Application:

1,Medium voltage soft starter

2,Medium voltage inverter/converter

3,Medium voltage drives

6500V Medium Voltage Soft Starter SCR Thyristor Assembly Drawing:

6500V Soft Starter Thyristor Component Model Table:

Model	Thyristor	A	B	C	D	K	F	Bolt Spacing	Bolt length	Outline
SF2L-400-65	KP300A-500A/6500V	245	20	80	100	5	36	80	88	Outline
SF2L-700-65	KP700A-800A/6500V	265	20	90	120	5	36	90	88	Outline
SF2L-1000-65	KP1000A/6500V	350	20	125	200	20	69.5	130	150	Outline
SF2L-1300-65	KP1200A-1500A/6500V	400	20	150	200	20	69.5	150	150	Outline
SF2L-1900-65	KP1800A-2000A/6500V	420	25	150	240	20	106	150	168	Outline
SF2L-2800-65	KP2600A-2900A/6500V	480	25	180	240	20	106	180	168	Outline

Power SCR assemblies

Thyristor Stack For Mine Explosion-Proof Soft Starter

The thyristor stack have three phase bridge arm.Each phase arm consists of two phase control thyristors.Below is 4200V thyristor stack introduction.Suitable for QJR Series Mine Explosion soft start cabinet.

4200V ThyristorStack Model Table:

Model	IT(AV) Tc=70	VDRM VRRM	Itsm	I²t	Vto	F
KP500A 4200V	500A	3500V-4500V	7KA	245	1.2V	16KN
KP800A 4200V	800A	3500V-4500V	14.5KA	1051	1.2V	25KN
KP1000A 4200V	1000A	3500V-4500V	15KA	1125	1.18V	32KN
KP1250A 4200V	1250A	3500V-4500V	20KA	1525	1.18V	32KN
KP1500A 4200V	1500A	3500V-4500V	25KA	3125	1.15V	45KN
KP1800A 4200V	1800A	3500V-4500V	25KA	3125	1.15V	50KN

4200V Thyristor Stack Drawing:

Power SCR assemblies

Mine Explosion-Proof Soft Starter Thyristor Assembly

The thyristor assemblies are specially designed for mine explosion-proof soft starter.Each phase consists of two anti-parallel phase control thyristors.We accept design and produce according to your assembly drawing.

Features:

1, used in colliery, mining and other occasions, three-phase asynchronous motor soft starter

2, six thyristors make up three phase AC switches

3, compact, easy to install

4, can be used for natural cooling

5, specific installation size, can be re-designed according to user requirements

Thyristor Assembly Technical Parameters:

1, flow capacity of the assembly, off-state voltage, depending on the chosen thyristors.

For example: the following figure show that each phase have two KP1000A-4200V thyristors

to make up three phase soft start components:

1, the maximum on-current (RMS) IT (RMS) = 2222A

2, repetitive peak off-state voltage VDRM≥4200V

3, repetitive peak off-state current IDRM≤70mA

4, state peak voltage VTM≤2.6V (1TM = 2400A time)

5, the gate trigger current 1GT = 40-150mA (two thyristors 1GT the difference ≤20mA)

6, gate trigger voltage VGT = 1.0-2.6V

MINE EXPLOSION SOFT START SCR ASSEMBLY DRAWING:

Power SCR assemblies

4000V,4200V SOFT STARTER Thyristor COMPONENTS

4000V,4200V Soft Starter Thyristor Components

4200V soft starter thyristor components,each phase consists of 4200V phase control thyristor,one set use three phase thyristor components,mainly used for medium voltage soft starter.

Product Features:

1,This set of thyristor components using three-layer aluminum heat dissipation structure, each phase of the two devices up and down the structure of the anti-In parallel, a full three-phase assembly 6 devices are arranged in a structure, the structure Compact, lightweight, low cost, easy to install;

2，This set of SCR components can be cooled, it can be forced air cooling.

Thyristor Components Typical Application：

1，This SCR component is mainly applied 1140V and below the voltage

level of the mine with a soft start; in three-phase system in accordance

with the actual use to select the device on-state current average current, voltage is selected according to the use optional off-state voltage of the device; this set of optional components on-state current of 800A ~ 1600A, off-state power pressure 4200V devices;

2，This set of SCR components may also be used higher current devices, but it should be appropriate to increase the structure has been calculated size pieces.

4000V 4200V Soft Starter Components Diagram:

Power SCR assemblies

Pulse Power Supply Thyristor Stack

We design pulse power supply thyristor stack according to clients’ requirements.

Key Features

High di/dt capability
High surge current capability
Forward and reverse blocking capability
High reliability
High power density

Pulse Power Supply Thyristor Stack Applications

Pulsed power application

Pulse Power Supply Thyristor Stack Model Table:

Model	Ipk	VDRM	VRRM	di/dt	dv/dt	Trigger Interface	Frequency	Outline
10KV Pulse Power
MFP3C120K20	120KA	19.5KV	19.5KV	3KA/us	2000	Optical fiber	Single Pulse	250282352
25KV Pulse Power
MFP7C120K45	120KA	45.5KV	45.5KV	3KA/us	2000	Optical fiber	Single Pulse	470383344
MFP7E300K45	300KA	45.5KV	45.5KV	3KA/us	2000	Optical fiber	Single Pulse	540440415

Pulse Power Supply Thyristor Parts Number:

Type	Ipk	VDRM VRRM	di/dt	dv/dt	Tvjm	F	Frequency	Outline
Voltage up to 4200V
MKP9 030-042	30KA	4200V	3000A/us	2000V/us	110	22KN	Single pulse	KP9
MKPc 180-042	180KA	4200V	3000A/us	2000V/us	110	90KN	Single pulse	KPc
MKPd 260-042	260KA	4200V	3000A/us	2000V/us	110	120KN	Single pulse	KPd
Voltage up to 5200V
MKPc 150-052	150KA	5200V	3000A/us	2000V/us	110	90KN	Single pulse	KPc
MKPd 230-052	230KA	5200V	3000A/us	2000V/us	110	120KN	Single pulse	KPd
MKPe 330-052	330KA	5200V	3000A/us	2000V/us	110	180KN	Single pulse	KPe
Voltage up to 6500V
MKPx 050-065	50KA	6500V	3000A/us	2000V/us	110	56KN	Single pulse	KLx
MKPc 120-065	120KA	6500V	3000A/us	2000V/us	110	90KN	Single pulse	KPc
MKPd 200-065	200KA	6500V	3000A/us	2000V/us	110	120KN	Single pulse	KPd
MKPe 300-065	300KA	6500V	3000A/us	2000V/us	110	180KN	Single pulse	KPe
Voltage up to 8500V
MKP9 015-085	15KA	8500V	3000A/us	2000V/us	110	22KN	Single pulse	KP9

Pulse Power Supply Assembly Thyristor Outline:

Remarks:All dimensions shown in mm unless stated otherwise.

Power SCR assemblies

Pulse Power Supply

Introduction

The device is a power output unit of DC switch, which can replace 5STH and 5SPY series pulse power
supply. It is composed of light control, electric control, integrated pulse output transformer, resistance
capacitance static and dynamic pressure, metal oxide varistor (MOV, optional), diode restrain (optional),
one or more thyristors.

Main Parameters

DC Working Voltage ≤25kV

Output Pulse Current ≤100kA

Rate of Current Rise ≤2000A/μs

Pulse Current Width：50μs-10ms

Repeated Cycle ≥ 3 min

Control Mode: light control, electric control, optional

Maximum Outline Dimension: 500×500×345mm

Weight: 55kg (including all the optional components)

Applications

This device has the advantages of superpower anti-interference capability, environmental protection, super
long electromechanical life.

Experiment has proved that the electric parameters are always the same when we have successfully
operated the machine 20,000 times under 18kV, 15kA working condition.

The device can be widely used in fields of high voltage and pulse high current, like Xenon light, electromagnetic
emission and magnetizing machine. It is an optimal scheme of replacing contact-switch and mercury ignitron.

Power SCR assemblies

MFDC Welding Diode Assembly

Brief Introduction of Power Assembly

Rectifier unit for Medium frequency inverter resistance welding machine

This output rectifier unit is designed for medium frequency inverter resistance welding machine.

The design makes the unit low on-state voltage drop Vfm/Vtm and extremely low thermal

resistance. It can be the replacement of 5SDD series of welding diode

Ceramic shell package type

Part No.	IF(AV)	VRRM	IFSM	Outline
ZP4000A/200V-400V	4000A	200V-400V	45KA	D1
ZP7100A/200V-400V	7100A	200V-400V	55KA	D1
ZP10500A/200V-400V	10500A	200V-400V	70KA	D18
ZP12000A/200V-400V	12000A	200V-400V	85KA	D2
ZP13500A/200V-400V	13500A	200V-400V	85KA	D19
ZP16000A/200V-400V	16000A	200V-400V	120KA	D3
ZP18000A/200V-400V	18000A	200V-400V	120KA	D20

Power SCR assemblies

SCR Assembly

Soft Starter Assembly:

Features:

The assembly consists of six thyristors.Two anti-parallel thyristors as a single phase AC switch.Then combine the three AC switch to use for

soft start three phase asynchronous AC motors.Conside soft starter start time is short.After start the motor,current donot through soft starter assembly.So SCR not with additional radiator.just radiating use conductive copper.

Applications:

Used in colliery, mining three phase asynchronous motor’s soft starter.We can customize SCR assembly according to your motor’s current,voltage.Detailed installed size,also accept customize.

Main technical parameters:

The SCR assembly’s current capacity and off-state voltage,depending on the SCR part number that you choose.

E.g: below is two KP800-40 SCRs make up one phase assembly.Parameters as below:

IT(rms)=1777A

Vdrm>=4000V

Idrm<=70mA

Vtm<=2.6V(Itm=2400A)