7UT92 93

Data Sheet 1 of 1 RMS-5304-02-M REV. 1 DATE: 2004-01-25 Bkr(s):

POWER TRANSMISSION DEPARTMENT

7UT92/93 Station : Manuf :

( TRANSFORMER DIFFRENTIAL RELAY) Circuit :

SIEMENS

Type : 7UT92/93

Device # (s) Range : ( Relay # (s) :

CT Ratio : Panel # :

)

Style : /5

PT Ratio : /1 Phase (s) : A , B & C

ESPD SETTING DATE :____/____/________ WINDIN G 1 TAP

TEST

WINDIN G 2 TAP

WINDIN G 3 TAP

WINDIN G 4 TAP

PHASE A AS FOUND

WINDIN G 5 TAP

INSTANTANEOU S

PHASE B AS FOUND

AS LEFT

SLOPE %

PHASE C

AS LEFT

AS FOUND

AS LEFT

TEST CONNECTION PICK-UP

HI 1 – 13

% SLOPE 2nd HARM

I1 13 – 3 I1 13 – 3

LO 3 – 13 I3 1 – 3 I2 13 – 3

HI 4 – 13 I1 13 – 6 I1 13 – 6

LO 6 – 13 I3 4 – 6 I2 13 – 6

HI 7 – 13

LO 9 – 13

I1 13 – 9 I1 13 – 9

I3 7 – 9 I2 13 – 9

MINIMUM PICK-UP TEST HI LO

DIFFERENTIAL CHARACTERISTIC ( SLOP) TEST ( 40% ) I1 / I3 X 100 (I3) 6XTAP = A

A %

A %

A %

A %

A %

A %

% SECOND HARMONIC RESTRAINT TEST (I2) : FOR 1.0 TAP = 0.4 A , FOR 1.5 TAP = 0.6A , FOR 2.0 TAP = 0.8A

(I2) ( )XTAP = A

A

A

A

A

A

A

%

%

%

%

%

%

% 2nd HARMONIC = [(I2 RES.) / √(I2) 2 + (I1) 2 ] X 100

RED FLAG CHECKING FLAGE

TEST SET : _____________________________________________________________________ REMARKS : _____________________________________________________________________ _________________________________________________________________________________ PM TESTED BY : ___________________________________ DATE : _____/______/_________ ALMEAYAN 036871