Approaches to the qualification of CPS drive SHEM-3 for Hanhikivi … · 4 1 General Information...

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Approaches to the qualification of CPS

drive SHEM-3 for Hanhikivi-1 NPP

Helsinki, August 2018

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The purpose of this presentation is to provide the

necessary information to the Fennovoima Oy company

for obtaining the approval for OKB “GIDROPRESS” to

be the equipment Manufacturer for Hanhikivi-1 NPP,

namely CPS drives SHEM-3.

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1 General information about CPS drive SHEM-3

2 OKB “GIDROPRESS” manufacture experience of CPS

drive SHEM-3

3 The delivery scope of OKB “GIDROPRESS” for

Hanhikivi-1 NPP

4 Approaches to the qualification of CPS drive SHEM-3 for

Hanhikivi-1 NPP

Table of Contents

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1 General Information about CPS Drive SHEM-3

The intended purpose of the Control Rod Drives is start-up,

adjustment of power capacity and shutdown of the reactor by

means of insertion or withdrawal of the Control Rods into/from the

reactor core.

CPS Drive SHEM-3 is the Control Rod Drive used in the design of

NPP "Hanhikivi-1" – developed by OKB GIDROPRESS.

Control of the CPS Drives SHEM-3 and control of position of the

RCCA in the reactor core are performed by the instrumentation

and control (I&C).

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Reactor

CPS Drive SHEM-3

Control Rods

Core


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CPS Drive SHEM-31 2

3

4

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1 – Pitch Position Indicator

(PPI Indicator)

2 – Unit of Electromagnets (UEM)

3 – Housing

4 – Motion Unit (MU)

5 – Extension Shaft

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PPI Indicator

Unit of Electromagnets

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Housing

Extension Shaft

Motion Unit

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PPI indicator is a leak-tight cylindrical structure in the

shape of a tube of variable cross-section with inductive coils

located in the bottom part.

PPI indicators and units of electromagnets of CPS drives

SHEM-3 are connected with I&C by the electrical

connectors, CPS stubs and electrical cables.

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The signals from all the indicator

coils are picked up simultaneously

and magnetic circuits of one or

several coils are closed or opened

at each drive’s pitch (in cased of

extension shaft motion by 20 mm

with shunts located inside it). The

processing of the signals picked up

from the indicator coils and

generation of code combinations is

carried out in the I&C. An individual,

not repeating code combination of

signals corresponds to each

position of RCCA.

For example: 001101011 = 121 pitch

= RCCA position is 2420 mm from

the Lower Rigid Stop (LRS).

PPI

Coils

Extension

Shaft

Insert

RCCA

Shunt

LRS

ULS

RC

CA

str

oke

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OKB “GIDROPRESS” is the Developer and Manufacturer of

CPS drives SHEM-3 for NPP with WWER-1000 and

WWER-1200.

Since 2000 OKB “GIDROPRESS” has manufactured and

supplied CPS drives SHEM-3 to the operating Units and

Units under commissioning of NPPs:

WWER-1000:

• Kalinin NPP, Units 1-4 (4х75 pcs.);

• Rostov NPP, Units 2-4 (3х75 pcs);

• Balakovo NPP, Units 1-3 (3х75 pcs);

• Kozloduy NPP, Units 5,6 (2х75 pcs);

• Tianwan NPP, Units 1-4 (4х135 pcs);

• Bushehr-1 (135 pcs);

• Kudankulam NPP, Units 1,2 (2х135 pcs),

2 OKB “GIDROPRESS” manufacture experience of CPS drive SHEM-3

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WWER-1200:

• NVNPP-2, Units 1,2 (2x135 pcs);

• LNPP-2, Units 1,2 (135 pcs);

• Belarus NPP, Unit 1 (124 pcs).

Total: 2509 pieces have been supplied to NPP Units by

31.07.2018

2 OKB “GIDROPRESS” manufacture experience of CPS drive SHEM-3

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3 The delivery scope of OKB “GIDROPRESS” for Hanhikivi-1 NPP

The delivery scope of OKB “GIDROPRESS” for Hanhikivi-1

NPP is:

- Set of CPS drives SHEM-3 (135 pcs);

- Set of tools and accessories for the maintenance of CPS

drive SHEM-3 – 2 sets;

- Set of spare parts – 1 set;

- Set of the products for adjustment and control of the drives

– 1 set;

- Set of the products for hydrotests of the drive housings –

1 set.

Instrumentation and control (I&C) is not developed by OKB

“GIDROPRESS” and it is not included into the scope of its

delivery.

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OKB GIDROPRESS held a workshop on 30-31.05.2017 on providing

the information to the NPP Owner (Fennovoima Oy company) on

CPS drives for Hanhikivi-1 NPP project with participation of the

representatives of Fennovoima Oy, RAOS Oy, JSC “VNIIEM”

Corporation, JSC “Atomenergoproyekt”, JSC “Atomenergomash”.

During this workshop among other topics “Road map on

qualification of control rod drive for Hanhikivi-1 NPP” was

discussed.

This “Road map...” was approved in general by the participants of

the meeting (a corresponding minutes of the meetings were

signed) and sent to Fennovoima Oy for the final conclusion.

The following scheme of qualification of CPS drive SHEM-3 is

introduced according to the “Road map...”:

4 Approaches to the qualification of CPS drive SHEM-3 for Hanhikivi-1 NPP

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Qualification

Qualification at the

stage of

manufacturing and

at NPP

Qualification of

equipment for

design of the

specific NPP

Qualification of

equipment during

design

development and

justification of the

design

- calculation justification;

- operational-life testing;

- seismic tests;

- tests under the emergency

conditions within the

containment (SB LOCA and LB

LOCA), electromagnetic

compatibility tests etc.

- calculation justification

(considering design

requirements of the specific

NPP)

- seismic tests (if required).

- incoming quality control of

materials;

- quality control in

manufacture;

- acceptance inspection;

- testing at NPP.


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According to RAOS Project Oy document “Overall Qualification

plan” five qualification disciplines are established:

- Mechanical Equipment;

- Electrical Systems and Equipment;

- Complex Self-Standing Equipment;

- I&C;

- Civil.

From the viewpoint of structure CPS drives SHEM-3 are a part of the

reactor upper unit, consist of mechanical part and electrical

equipment and shall be qualified as mechanical equipment (including

UEM and PPI indicator as a whole) according to the following

scheme.


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CPS drive SHEM-3

Electrical

elements

Mechanical

part

I&C

- coils of unit of electromagnets and PPI- lead-outs- electrical connectors

- Housing, indicator body (safety class 1)

For the reference design the developer and manufacturer of I&Cis NPP “VNIIEM”

Qualification is performedby the developer andmanufacturer of I&C

YVL E.7

YVL E.3

-UEM-Extension shaft-MU-PPI

According to the qualification plan on the discipline “Mechanical equipment”


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Qualification at the

stage of

manufacturing and

at NPP

Qualification for

the design of NPP

“Hanhikivi-1”

Qualification during

design

development and

justification of the

design

According to Construction

Plan:

- incoming quality control of

materials;

- quality control during

manufacture;

- acceptance test;

- inspection and testing at

NPP.

Topical Reports on the results of

qualification (testing) for the

reference NPP shall be executed

and transferred to Fennovoima

and STUK

- calculation justification;

- seismic tests (if required)


Approaches to the qualification of CPS drive SHEM-3 for Hanhikivi … · 4 1 General Information...

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